19454b2d8SWarner Losh /*- 2ee877a35SJohn Dyson * Copyright (c) 1997 John S. Dyson. All rights reserved. 3ee877a35SJohn Dyson * 4ee877a35SJohn Dyson * Redistribution and use in source and binary forms, with or without 5ee877a35SJohn Dyson * modification, are permitted provided that the following conditions 6ee877a35SJohn Dyson * are met: 7ee877a35SJohn Dyson * 1. Redistributions of source code must retain the above copyright 8ee877a35SJohn Dyson * notice, this list of conditions and the following disclaimer. 9ee877a35SJohn Dyson * 2. John S. Dyson's name may not be used to endorse or promote products 10ee877a35SJohn Dyson * derived from this software without specific prior written permission. 11ee877a35SJohn Dyson * 12ee877a35SJohn Dyson * DISCLAIMER: This code isn't warranted to do anything useful. Anything 13ee877a35SJohn Dyson * bad that happens because of using this software isn't the responsibility 14ee877a35SJohn Dyson * of the author. This software is distributed AS-IS. 15ee877a35SJohn Dyson */ 16ee877a35SJohn Dyson 17ee877a35SJohn Dyson /* 188a6472b7SPeter Dufault * This file contains support for the POSIX 1003.1B AIO/LIO facility. 19ee877a35SJohn Dyson */ 20ee877a35SJohn Dyson 21677b542eSDavid E. O'Brien #include <sys/cdefs.h> 22677b542eSDavid E. O'Brien __FBSDID("$FreeBSD$"); 23677b542eSDavid E. O'Brien 243858a1f4SJohn Baldwin #include "opt_compat.h" 253858a1f4SJohn Baldwin 26ee877a35SJohn Dyson #include <sys/param.h> 27ee877a35SJohn Dyson #include <sys/systm.h> 28f591779bSSeigo Tanimura #include <sys/malloc.h> 299626b608SPoul-Henning Kamp #include <sys/bio.h> 30a5c9bce7SBruce Evans #include <sys/buf.h> 3175b8b3b2SJohn Baldwin #include <sys/eventhandler.h> 32ee877a35SJohn Dyson #include <sys/sysproto.h> 33ee877a35SJohn Dyson #include <sys/filedesc.h> 34ee877a35SJohn Dyson #include <sys/kernel.h> 3577409fe1SPoul-Henning Kamp #include <sys/module.h> 36c9a970a7SAlan Cox #include <sys/kthread.h> 37ee877a35SJohn Dyson #include <sys/fcntl.h> 38ee877a35SJohn Dyson #include <sys/file.h> 39104a9b7eSAlexander Kabaev #include <sys/limits.h> 40fdebd4f0SBruce Evans #include <sys/lock.h> 4135e0e5b3SJohn Baldwin #include <sys/mutex.h> 42ee877a35SJohn Dyson #include <sys/unistd.h> 436aeb05d7STom Rhodes #include <sys/posix4.h> 44ee877a35SJohn Dyson #include <sys/proc.h> 452d2f8ae7SBruce Evans #include <sys/resourcevar.h> 46ee877a35SJohn Dyson #include <sys/signalvar.h> 47bfbbc4aaSJason Evans #include <sys/protosw.h> 481ce91824SDavid Xu #include <sys/sema.h> 491ce91824SDavid Xu #include <sys/socket.h> 50bfbbc4aaSJason Evans #include <sys/socketvar.h> 5121d56e9cSAlfred Perlstein #include <sys/syscall.h> 5221d56e9cSAlfred Perlstein #include <sys/sysent.h> 53a624e84fSJohn Dyson #include <sys/sysctl.h> 54ee99e978SBruce Evans #include <sys/sx.h> 551ce91824SDavid Xu #include <sys/taskqueue.h> 56fd3bf775SJohn Dyson #include <sys/vnode.h> 57fd3bf775SJohn Dyson #include <sys/conf.h> 58cb679c38SJonathan Lemon #include <sys/event.h> 5999eee864SDavid Xu #include <sys/mount.h> 60ee877a35SJohn Dyson 611ce91824SDavid Xu #include <machine/atomic.h> 621ce91824SDavid Xu 63ee877a35SJohn Dyson #include <vm/vm.h> 64ee877a35SJohn Dyson #include <vm/vm_extern.h> 652244ea07SJohn Dyson #include <vm/pmap.h> 662244ea07SJohn Dyson #include <vm/vm_map.h> 6799eee864SDavid Xu #include <vm/vm_object.h> 68c897b813SJeff Roberson #include <vm/uma.h> 69ee877a35SJohn Dyson #include <sys/aio.h> 705aaef07cSJohn Dyson 71dd85920aSJason Evans #include "opt_vfs_aio.h" 72ee877a35SJohn Dyson 73eb8e6d52SEivind Eklund /* 74eb8e6d52SEivind Eklund * Counter for allocating reference ids to new jobs. Wrapped to 1 on 7599eee864SDavid Xu * overflow. (XXX will be removed soon.) 76eb8e6d52SEivind Eklund */ 7799eee864SDavid Xu static u_long jobrefid; 782244ea07SJohn Dyson 7999eee864SDavid Xu /* 8099eee864SDavid Xu * Counter for aio_fsync. 8199eee864SDavid Xu */ 8299eee864SDavid Xu static uint64_t jobseqno; 8399eee864SDavid Xu 8499eee864SDavid Xu #define JOBST_NULL 0 8599eee864SDavid Xu #define JOBST_JOBQSOCK 1 8699eee864SDavid Xu #define JOBST_JOBQGLOBAL 2 8799eee864SDavid Xu #define JOBST_JOBRUNNING 3 8899eee864SDavid Xu #define JOBST_JOBFINISHED 4 8999eee864SDavid Xu #define JOBST_JOBQBUF 5 9099eee864SDavid Xu #define JOBST_JOBQSYNC 6 912244ea07SJohn Dyson 9284af4da6SJohn Dyson #ifndef MAX_AIO_PER_PROC 932244ea07SJohn Dyson #define MAX_AIO_PER_PROC 32 9484af4da6SJohn Dyson #endif 9584af4da6SJohn Dyson 9684af4da6SJohn Dyson #ifndef MAX_AIO_QUEUE_PER_PROC 972244ea07SJohn Dyson #define MAX_AIO_QUEUE_PER_PROC 256 /* Bigger than AIO_LISTIO_MAX */ 9884af4da6SJohn Dyson #endif 9984af4da6SJohn Dyson 10084af4da6SJohn Dyson #ifndef MAX_AIO_PROCS 101fd3bf775SJohn Dyson #define MAX_AIO_PROCS 32 10284af4da6SJohn Dyson #endif 10384af4da6SJohn Dyson 10484af4da6SJohn Dyson #ifndef MAX_AIO_QUEUE 1052244ea07SJohn Dyson #define MAX_AIO_QUEUE 1024 /* Bigger than AIO_LISTIO_MAX */ 10684af4da6SJohn Dyson #endif 10784af4da6SJohn Dyson 10884af4da6SJohn Dyson #ifndef TARGET_AIO_PROCS 109bfbbc4aaSJason Evans #define TARGET_AIO_PROCS 4 11084af4da6SJohn Dyson #endif 11184af4da6SJohn Dyson 11284af4da6SJohn Dyson #ifndef MAX_BUF_AIO 11384af4da6SJohn Dyson #define MAX_BUF_AIO 16 11484af4da6SJohn Dyson #endif 11584af4da6SJohn Dyson 11684af4da6SJohn Dyson #ifndef AIOD_TIMEOUT_DEFAULT 11784af4da6SJohn Dyson #define AIOD_TIMEOUT_DEFAULT (10 * hz) 11884af4da6SJohn Dyson #endif 11984af4da6SJohn Dyson 12084af4da6SJohn Dyson #ifndef AIOD_LIFETIME_DEFAULT 12184af4da6SJohn Dyson #define AIOD_LIFETIME_DEFAULT (30 * hz) 12284af4da6SJohn Dyson #endif 1232244ea07SJohn Dyson 124e603be7aSRobert Watson FEATURE(aio, "Asynchronous I/O"); 125e603be7aSRobert Watson 1263858a1f4SJohn Baldwin static MALLOC_DEFINE(M_LIO, "lio", "listio aio control block list"); 1273858a1f4SJohn Baldwin 1285ece08f5SPoul-Henning Kamp static SYSCTL_NODE(_vfs, OID_AUTO, aio, CTLFLAG_RW, 0, "Async IO management"); 129eb8e6d52SEivind Eklund 130303b270bSEivind Eklund static int max_aio_procs = MAX_AIO_PROCS; 131a624e84fSJohn Dyson SYSCTL_INT(_vfs_aio, OID_AUTO, max_aio_procs, 132eb8e6d52SEivind Eklund CTLFLAG_RW, &max_aio_procs, 0, 133eb8e6d52SEivind Eklund "Maximum number of kernel threads to use for handling async IO "); 134a624e84fSJohn Dyson 135eb8e6d52SEivind Eklund static int num_aio_procs = 0; 136a624e84fSJohn Dyson SYSCTL_INT(_vfs_aio, OID_AUTO, num_aio_procs, 137eb8e6d52SEivind Eklund CTLFLAG_RD, &num_aio_procs, 0, 138eb8e6d52SEivind Eklund "Number of presently active kernel threads for async IO"); 139a624e84fSJohn Dyson 140eb8e6d52SEivind Eklund /* 141eb8e6d52SEivind Eklund * The code will adjust the actual number of AIO processes towards this 142eb8e6d52SEivind Eklund * number when it gets a chance. 143eb8e6d52SEivind Eklund */ 144eb8e6d52SEivind Eklund static int target_aio_procs = TARGET_AIO_PROCS; 145eb8e6d52SEivind Eklund SYSCTL_INT(_vfs_aio, OID_AUTO, target_aio_procs, CTLFLAG_RW, &target_aio_procs, 146eb8e6d52SEivind Eklund 0, "Preferred number of ready kernel threads for async IO"); 147a624e84fSJohn Dyson 148eb8e6d52SEivind Eklund static int max_queue_count = MAX_AIO_QUEUE; 149eb8e6d52SEivind Eklund SYSCTL_INT(_vfs_aio, OID_AUTO, max_aio_queue, CTLFLAG_RW, &max_queue_count, 0, 150eb8e6d52SEivind Eklund "Maximum number of aio requests to queue, globally"); 151a624e84fSJohn Dyson 152eb8e6d52SEivind Eklund static int num_queue_count = 0; 153eb8e6d52SEivind Eklund SYSCTL_INT(_vfs_aio, OID_AUTO, num_queue_count, CTLFLAG_RD, &num_queue_count, 0, 154eb8e6d52SEivind Eklund "Number of queued aio requests"); 155a624e84fSJohn Dyson 156eb8e6d52SEivind Eklund static int num_buf_aio = 0; 157eb8e6d52SEivind Eklund SYSCTL_INT(_vfs_aio, OID_AUTO, num_buf_aio, CTLFLAG_RD, &num_buf_aio, 0, 158eb8e6d52SEivind Eklund "Number of aio requests presently handled by the buf subsystem"); 159fd3bf775SJohn Dyson 160eb8e6d52SEivind Eklund /* Number of async I/O thread in the process of being started */ 161a9bf5e37SDavid Xu /* XXX This should be local to aio_aqueue() */ 162eb8e6d52SEivind Eklund static int num_aio_resv_start = 0; 163fd3bf775SJohn Dyson 164eb8e6d52SEivind Eklund static int aiod_timeout; 165eb8e6d52SEivind Eklund SYSCTL_INT(_vfs_aio, OID_AUTO, aiod_timeout, CTLFLAG_RW, &aiod_timeout, 0, 166eb8e6d52SEivind Eklund "Timeout value for synchronous aio operations"); 16784af4da6SJohn Dyson 168eb8e6d52SEivind Eklund static int aiod_lifetime; 169eb8e6d52SEivind Eklund SYSCTL_INT(_vfs_aio, OID_AUTO, aiod_lifetime, CTLFLAG_RW, &aiod_lifetime, 0, 170eb8e6d52SEivind Eklund "Maximum lifetime for idle aiod"); 17184af4da6SJohn Dyson 172eb8e6d52SEivind Eklund static int unloadable = 0; 17321d56e9cSAlfred Perlstein SYSCTL_INT(_vfs_aio, OID_AUTO, unloadable, CTLFLAG_RW, &unloadable, 0, 17421d56e9cSAlfred Perlstein "Allow unload of aio (not recommended)"); 17521d56e9cSAlfred Perlstein 176eb8e6d52SEivind Eklund 177eb8e6d52SEivind Eklund static int max_aio_per_proc = MAX_AIO_PER_PROC; 178eb8e6d52SEivind Eklund SYSCTL_INT(_vfs_aio, OID_AUTO, max_aio_per_proc, CTLFLAG_RW, &max_aio_per_proc, 179eb8e6d52SEivind Eklund 0, "Maximum active aio requests per process (stored in the process)"); 180eb8e6d52SEivind Eklund 181eb8e6d52SEivind Eklund static int max_aio_queue_per_proc = MAX_AIO_QUEUE_PER_PROC; 182eb8e6d52SEivind Eklund SYSCTL_INT(_vfs_aio, OID_AUTO, max_aio_queue_per_proc, CTLFLAG_RW, 183eb8e6d52SEivind Eklund &max_aio_queue_per_proc, 0, 184eb8e6d52SEivind Eklund "Maximum queued aio requests per process (stored in the process)"); 185eb8e6d52SEivind Eklund 186eb8e6d52SEivind Eklund static int max_buf_aio = MAX_BUF_AIO; 187eb8e6d52SEivind Eklund SYSCTL_INT(_vfs_aio, OID_AUTO, max_buf_aio, CTLFLAG_RW, &max_buf_aio, 0, 188eb8e6d52SEivind Eklund "Maximum buf aio requests per process (stored in the process)"); 189eb8e6d52SEivind Eklund 1900972628aSDavid Xu typedef struct oaiocb { 1910972628aSDavid Xu int aio_fildes; /* File descriptor */ 1920972628aSDavid Xu off_t aio_offset; /* File offset for I/O */ 1930972628aSDavid Xu volatile void *aio_buf; /* I/O buffer in process space */ 1940972628aSDavid Xu size_t aio_nbytes; /* Number of bytes for I/O */ 1950972628aSDavid Xu struct osigevent aio_sigevent; /* Signal to deliver */ 1960972628aSDavid Xu int aio_lio_opcode; /* LIO opcode */ 1970972628aSDavid Xu int aio_reqprio; /* Request priority -- ignored */ 1980972628aSDavid Xu struct __aiocb_private _aiocb_private; 1990972628aSDavid Xu } oaiocb_t; 2000972628aSDavid Xu 2011aa4c324SDavid Xu /* 2021aa4c324SDavid Xu * Below is a key of locks used to protect each member of struct aiocblist 2031aa4c324SDavid Xu * aioliojob and kaioinfo and any backends. 2041aa4c324SDavid Xu * 2051aa4c324SDavid Xu * * - need not protected 206759ccccaSDavid Xu * a - locked by kaioinfo lock 2071aa4c324SDavid Xu * b - locked by backend lock, the backend lock can be null in some cases, 2081aa4c324SDavid Xu * for example, BIO belongs to this type, in this case, proc lock is 2091aa4c324SDavid Xu * reused. 2101aa4c324SDavid Xu * c - locked by aio_job_mtx, the lock for the generic file I/O backend. 2111aa4c324SDavid Xu */ 2121aa4c324SDavid Xu 2131aa4c324SDavid Xu /* 2141aa4c324SDavid Xu * Current, there is only two backends: BIO and generic file I/O. 2151aa4c324SDavid Xu * socket I/O is served by generic file I/O, this is not a good idea, since 2161aa4c324SDavid Xu * disk file I/O and any other types without O_NONBLOCK flag can block daemon 2171aa4c324SDavid Xu * threads, if there is no thread to serve socket I/O, the socket I/O will be 2181aa4c324SDavid Xu * delayed too long or starved, we should create some threads dedicated to 2191aa4c324SDavid Xu * sockets to do non-blocking I/O, same for pipe and fifo, for these I/O 2201aa4c324SDavid Xu * systems we really need non-blocking interface, fiddling O_NONBLOCK in file 2211aa4c324SDavid Xu * structure is not safe because there is race between userland and aio 2221aa4c324SDavid Xu * daemons. 2231aa4c324SDavid Xu */ 2241aa4c324SDavid Xu 22548dac059SAlan Cox struct aiocblist { 2261aa4c324SDavid Xu TAILQ_ENTRY(aiocblist) list; /* (b) internal list of for backend */ 2271aa4c324SDavid Xu TAILQ_ENTRY(aiocblist) plist; /* (a) list of jobs for each backend */ 2281aa4c324SDavid Xu TAILQ_ENTRY(aiocblist) allist; /* (a) list of all jobs in proc */ 2291aa4c324SDavid Xu int jobflags; /* (a) job flags */ 2301aa4c324SDavid Xu int jobstate; /* (b) job state */ 2311aa4c324SDavid Xu int inputcharge; /* (*) input blockes */ 2321aa4c324SDavid Xu int outputcharge; /* (*) output blockes */ 2331aa4c324SDavid Xu struct buf *bp; /* (*) private to BIO backend, 2341aa4c324SDavid Xu * buffer pointer 2351aa4c324SDavid Xu */ 2361aa4c324SDavid Xu struct proc *userproc; /* (*) user process */ 2371aa4c324SDavid Xu struct ucred *cred; /* (*) active credential when created */ 2381aa4c324SDavid Xu struct file *fd_file; /* (*) pointer to file structure */ 2391aa4c324SDavid Xu struct aioliojob *lio; /* (*) optional lio job */ 2401aa4c324SDavid Xu struct aiocb *uuaiocb; /* (*) pointer in userspace of aiocb */ 2411aa4c324SDavid Xu struct knlist klist; /* (a) list of knotes */ 2421aa4c324SDavid Xu struct aiocb uaiocb; /* (*) kernel I/O control block */ 2431aa4c324SDavid Xu ksiginfo_t ksi; /* (a) realtime signal info */ 2441aa4c324SDavid Xu struct task biotask; /* (*) private to BIO backend */ 24599eee864SDavid Xu uint64_t seqno; /* (*) job number */ 24699eee864SDavid Xu int pending; /* (a) number of pending I/O, aio_fsync only */ 24748dac059SAlan Cox }; 24848dac059SAlan Cox 24948dac059SAlan Cox /* jobflags */ 25099eee864SDavid Xu #define AIOCBLIST_DONE 0x01 25199eee864SDavid Xu #define AIOCBLIST_BUFDONE 0x02 2521ce91824SDavid Xu #define AIOCBLIST_RUNDOWN 0x04 25399eee864SDavid Xu #define AIOCBLIST_CHECKSYNC 0x08 25448dac059SAlan Cox 2552244ea07SJohn Dyson /* 2562244ea07SJohn Dyson * AIO process info 2572244ea07SJohn Dyson */ 25884af4da6SJohn Dyson #define AIOP_FREE 0x1 /* proc on free queue */ 25984af4da6SJohn Dyson 260b40ce416SJulian Elischer struct aiothreadlist { 2611aa4c324SDavid Xu int aiothreadflags; /* (c) AIO proc flags */ 2621aa4c324SDavid Xu TAILQ_ENTRY(aiothreadlist) list; /* (c) list of processes */ 2631aa4c324SDavid Xu struct thread *aiothread; /* (*) the AIO thread */ 2642244ea07SJohn Dyson }; 2652244ea07SJohn Dyson 26684af4da6SJohn Dyson /* 26784af4da6SJohn Dyson * data-structure for lio signal management 26884af4da6SJohn Dyson */ 2691ce91824SDavid Xu struct aioliojob { 2701aa4c324SDavid Xu int lioj_flags; /* (a) listio flags */ 2711aa4c324SDavid Xu int lioj_count; /* (a) listio flags */ 2721aa4c324SDavid Xu int lioj_finished_count; /* (a) listio flags */ 2731aa4c324SDavid Xu struct sigevent lioj_signal; /* (a) signal on all I/O done */ 2741aa4c324SDavid Xu TAILQ_ENTRY(aioliojob) lioj_list; /* (a) lio list */ 2751aa4c324SDavid Xu struct knlist klist; /* (a) list of knotes */ 2761aa4c324SDavid Xu ksiginfo_t lioj_ksi; /* (a) Realtime signal info */ 27784af4da6SJohn Dyson }; 2781ce91824SDavid Xu 27984af4da6SJohn Dyson #define LIOJ_SIGNAL 0x1 /* signal on all done (lio) */ 28084af4da6SJohn Dyson #define LIOJ_SIGNAL_POSTED 0x2 /* signal has been posted */ 28169cd28daSDoug Ambrisko #define LIOJ_KEVENT_POSTED 0x4 /* kevent triggered */ 28284af4da6SJohn Dyson 28384af4da6SJohn Dyson /* 28484af4da6SJohn Dyson * per process aio data structure 28584af4da6SJohn Dyson */ 2862244ea07SJohn Dyson struct kaioinfo { 287759ccccaSDavid Xu struct mtx kaio_mtx; /* the lock to protect this struct */ 2881aa4c324SDavid Xu int kaio_flags; /* (a) per process kaio flags */ 2891aa4c324SDavid Xu int kaio_maxactive_count; /* (*) maximum number of AIOs */ 2901aa4c324SDavid Xu int kaio_active_count; /* (c) number of currently used AIOs */ 2911aa4c324SDavid Xu int kaio_qallowed_count; /* (*) maxiumu size of AIO queue */ 2921aa4c324SDavid Xu int kaio_count; /* (a) size of AIO queue */ 2931aa4c324SDavid Xu int kaio_ballowed_count; /* (*) maximum number of buffers */ 2941aa4c324SDavid Xu int kaio_buffer_count; /* (a) number of physio buffers */ 2951aa4c324SDavid Xu TAILQ_HEAD(,aiocblist) kaio_all; /* (a) all AIOs in the process */ 2961aa4c324SDavid Xu TAILQ_HEAD(,aiocblist) kaio_done; /* (a) done queue for process */ 2971aa4c324SDavid Xu TAILQ_HEAD(,aioliojob) kaio_liojoblist; /* (a) list of lio jobs */ 2981aa4c324SDavid Xu TAILQ_HEAD(,aiocblist) kaio_jobqueue; /* (a) job queue for process */ 2991aa4c324SDavid Xu TAILQ_HEAD(,aiocblist) kaio_bufqueue; /* (a) buffer job queue for process */ 3001aa4c324SDavid Xu TAILQ_HEAD(,aiocblist) kaio_sockqueue; /* (a) queue for aios waiting on sockets, 30199eee864SDavid Xu * NOT USED YET. 3021aa4c324SDavid Xu */ 30399eee864SDavid Xu TAILQ_HEAD(,aiocblist) kaio_syncqueue; /* (a) queue for aio_fsync */ 30499eee864SDavid Xu struct task kaio_task; /* (*) task to kick aio threads */ 3052244ea07SJohn Dyson }; 3062244ea07SJohn Dyson 307759ccccaSDavid Xu #define AIO_LOCK(ki) mtx_lock(&(ki)->kaio_mtx) 308759ccccaSDavid Xu #define AIO_UNLOCK(ki) mtx_unlock(&(ki)->kaio_mtx) 309759ccccaSDavid Xu #define AIO_LOCK_ASSERT(ki, f) mtx_assert(&(ki)->kaio_mtx, (f)) 310759ccccaSDavid Xu #define AIO_MTX(ki) (&(ki)->kaio_mtx) 311759ccccaSDavid Xu 31284af4da6SJohn Dyson #define KAIO_RUNDOWN 0x1 /* process is being run down */ 313bfbbc4aaSJason Evans #define KAIO_WAKEUP 0x2 /* wakeup process when there is a significant event */ 314fd3bf775SJohn Dyson 3153858a1f4SJohn Baldwin /* 3163858a1f4SJohn Baldwin * Operations used to interact with userland aio control blocks. 3173858a1f4SJohn Baldwin * Different ABIs provide their own operations. 3183858a1f4SJohn Baldwin */ 3193858a1f4SJohn Baldwin struct aiocb_ops { 3203858a1f4SJohn Baldwin int (*copyin)(struct aiocb *ujob, struct aiocb *kjob); 3213858a1f4SJohn Baldwin long (*fetch_status)(struct aiocb *ujob); 3223858a1f4SJohn Baldwin long (*fetch_error)(struct aiocb *ujob); 3233858a1f4SJohn Baldwin int (*store_status)(struct aiocb *ujob, long status); 3243858a1f4SJohn Baldwin int (*store_error)(struct aiocb *ujob, long error); 3253858a1f4SJohn Baldwin int (*store_kernelinfo)(struct aiocb *ujob, long jobref); 3263858a1f4SJohn Baldwin int (*store_aiocb)(struct aiocb **ujobp, struct aiocb *ujob); 3273858a1f4SJohn Baldwin }; 3283858a1f4SJohn Baldwin 3291aa4c324SDavid Xu static TAILQ_HEAD(,aiothreadlist) aio_freeproc; /* (c) Idle daemons */ 3301ce91824SDavid Xu static struct sema aio_newproc_sem; 3311ce91824SDavid Xu static struct mtx aio_job_mtx; 3321ce91824SDavid Xu static struct mtx aio_sock_mtx; 3331aa4c324SDavid Xu static TAILQ_HEAD(,aiocblist) aio_jobs; /* (c) Async job list */ 3341ce91824SDavid Xu static struct unrhdr *aiod_unr; 3352244ea07SJohn Dyson 3366a1162d4SAlexander Leidinger void aio_init_aioinfo(struct proc *p); 33721d56e9cSAlfred Perlstein static void aio_onceonly(void); 338fd3bf775SJohn Dyson static int aio_free_entry(struct aiocblist *aiocbe); 339fd3bf775SJohn Dyson static void aio_process(struct aiocblist *aiocbe); 3401ce91824SDavid Xu static int aio_newproc(int *); 3416a1162d4SAlexander Leidinger int aio_aqueue(struct thread *td, struct aiocb *job, 3423858a1f4SJohn Baldwin struct aioliojob *lio, int type, struct aiocb_ops *ops); 343fd3bf775SJohn Dyson static void aio_physwakeup(struct buf *bp); 34475b8b3b2SJohn Baldwin static void aio_proc_rundown(void *arg, struct proc *p); 345993182e5SAlexander Leidinger static void aio_proc_rundown_exec(void *arg, struct proc *p, struct image_params *imgp); 346fd3bf775SJohn Dyson static int aio_qphysio(struct proc *p, struct aiocblist *iocb); 3471ce91824SDavid Xu static void biohelper(void *, int); 3481ce91824SDavid Xu static void aio_daemon(void *param); 34948dac059SAlan Cox static void aio_swake_cb(struct socket *, struct sockbuf *); 35021d56e9cSAlfred Perlstein static int aio_unload(void); 35199eee864SDavid Xu static void aio_bio_done_notify(struct proc *userp, struct aiocblist *aiocbe, int type); 35299eee864SDavid Xu #define DONE_BUF 1 35399eee864SDavid Xu #define DONE_QUEUE 2 354dbbccfe9SDavid Xu static int aio_kick(struct proc *userp); 35599eee864SDavid Xu static void aio_kick_nowait(struct proc *userp); 35699eee864SDavid Xu static void aio_kick_helper(void *context, int pending); 35721d56e9cSAlfred Perlstein static int filt_aioattach(struct knote *kn); 35821d56e9cSAlfred Perlstein static void filt_aiodetach(struct knote *kn); 35921d56e9cSAlfred Perlstein static int filt_aio(struct knote *kn, long hint); 36069cd28daSDoug Ambrisko static int filt_lioattach(struct knote *kn); 36169cd28daSDoug Ambrisko static void filt_liodetach(struct knote *kn); 36269cd28daSDoug Ambrisko static int filt_lio(struct knote *kn, long hint); 3632244ea07SJohn Dyson 364eb8e6d52SEivind Eklund /* 365eb8e6d52SEivind Eklund * Zones for: 366eb8e6d52SEivind Eklund * kaio Per process async io info 367eb8e6d52SEivind Eklund * aiop async io thread data 368eb8e6d52SEivind Eklund * aiocb async io jobs 369eb8e6d52SEivind Eklund * aiol list io job pointer - internal to aio_suspend XXX 370eb8e6d52SEivind Eklund * aiolio list io jobs 371eb8e6d52SEivind Eklund */ 372c897b813SJeff Roberson static uma_zone_t kaio_zone, aiop_zone, aiocb_zone, aiol_zone, aiolio_zone; 373fd3bf775SJohn Dyson 374eb8e6d52SEivind Eklund /* kqueue filters for aio */ 37521d56e9cSAlfred Perlstein static struct filterops aio_filtops = 37621d56e9cSAlfred Perlstein { 0, filt_aioattach, filt_aiodetach, filt_aio }; 37769cd28daSDoug Ambrisko static struct filterops lio_filtops = 37869cd28daSDoug Ambrisko { 0, filt_lioattach, filt_liodetach, filt_lio }; 37921d56e9cSAlfred Perlstein 38075b8b3b2SJohn Baldwin static eventhandler_tag exit_tag, exec_tag; 38175b8b3b2SJohn Baldwin 3821ce91824SDavid Xu TASKQUEUE_DEFINE_THREAD(aiod_bio); 3831ce91824SDavid Xu 384eb8e6d52SEivind Eklund /* 385eb8e6d52SEivind Eklund * Main operations function for use as a kernel module. 386eb8e6d52SEivind Eklund */ 38721d56e9cSAlfred Perlstein static int 38821d56e9cSAlfred Perlstein aio_modload(struct module *module, int cmd, void *arg) 38921d56e9cSAlfred Perlstein { 39021d56e9cSAlfred Perlstein int error = 0; 39121d56e9cSAlfred Perlstein 39221d56e9cSAlfred Perlstein switch (cmd) { 39321d56e9cSAlfred Perlstein case MOD_LOAD: 39421d56e9cSAlfred Perlstein aio_onceonly(); 39521d56e9cSAlfred Perlstein break; 39621d56e9cSAlfred Perlstein case MOD_UNLOAD: 39721d56e9cSAlfred Perlstein error = aio_unload(); 39821d56e9cSAlfred Perlstein break; 39921d56e9cSAlfred Perlstein case MOD_SHUTDOWN: 40021d56e9cSAlfred Perlstein break; 40121d56e9cSAlfred Perlstein default: 40221d56e9cSAlfred Perlstein error = EINVAL; 40321d56e9cSAlfred Perlstein break; 40421d56e9cSAlfred Perlstein } 40521d56e9cSAlfred Perlstein return (error); 40621d56e9cSAlfred Perlstein } 40721d56e9cSAlfred Perlstein 40821d56e9cSAlfred Perlstein static moduledata_t aio_mod = { 40921d56e9cSAlfred Perlstein "aio", 41021d56e9cSAlfred Perlstein &aio_modload, 41121d56e9cSAlfred Perlstein NULL 41221d56e9cSAlfred Perlstein }; 41321d56e9cSAlfred Perlstein 41421d56e9cSAlfred Perlstein SYSCALL_MODULE_HELPER(aio_cancel); 41521d56e9cSAlfred Perlstein SYSCALL_MODULE_HELPER(aio_error); 41699eee864SDavid Xu SYSCALL_MODULE_HELPER(aio_fsync); 41721d56e9cSAlfred Perlstein SYSCALL_MODULE_HELPER(aio_read); 41899eee864SDavid Xu SYSCALL_MODULE_HELPER(aio_return); 41999eee864SDavid Xu SYSCALL_MODULE_HELPER(aio_suspend); 42021d56e9cSAlfred Perlstein SYSCALL_MODULE_HELPER(aio_waitcomplete); 42199eee864SDavid Xu SYSCALL_MODULE_HELPER(aio_write); 42221d56e9cSAlfred Perlstein SYSCALL_MODULE_HELPER(lio_listio); 4230972628aSDavid Xu SYSCALL_MODULE_HELPER(oaio_read); 4240972628aSDavid Xu SYSCALL_MODULE_HELPER(oaio_write); 4250972628aSDavid Xu SYSCALL_MODULE_HELPER(olio_listio); 42621d56e9cSAlfred Perlstein 42721d56e9cSAlfred Perlstein DECLARE_MODULE(aio, aio_mod, 42821d56e9cSAlfred Perlstein SI_SUB_VFS, SI_ORDER_ANY); 42921d56e9cSAlfred Perlstein MODULE_VERSION(aio, 1); 43021d56e9cSAlfred Perlstein 431fd3bf775SJohn Dyson /* 4322244ea07SJohn Dyson * Startup initialization 4332244ea07SJohn Dyson */ 43488ed460eSAlan Cox static void 43521d56e9cSAlfred Perlstein aio_onceonly(void) 436fd3bf775SJohn Dyson { 43721d56e9cSAlfred Perlstein 43821d56e9cSAlfred Perlstein /* XXX: should probably just use so->callback */ 43921d56e9cSAlfred Perlstein aio_swake = &aio_swake_cb; 44075b8b3b2SJohn Baldwin exit_tag = EVENTHANDLER_REGISTER(process_exit, aio_proc_rundown, NULL, 44175b8b3b2SJohn Baldwin EVENTHANDLER_PRI_ANY); 442993182e5SAlexander Leidinger exec_tag = EVENTHANDLER_REGISTER(process_exec, aio_proc_rundown_exec, NULL, 44375b8b3b2SJohn Baldwin EVENTHANDLER_PRI_ANY); 44421d56e9cSAlfred Perlstein kqueue_add_filteropts(EVFILT_AIO, &aio_filtops); 44569cd28daSDoug Ambrisko kqueue_add_filteropts(EVFILT_LIO, &lio_filtops); 4462244ea07SJohn Dyson TAILQ_INIT(&aio_freeproc); 4471ce91824SDavid Xu sema_init(&aio_newproc_sem, 0, "aio_new_proc"); 4481ce91824SDavid Xu mtx_init(&aio_job_mtx, "aio_job", NULL, MTX_DEF); 4491ce91824SDavid Xu mtx_init(&aio_sock_mtx, "aio_sock", NULL, MTX_DEF); 4502244ea07SJohn Dyson TAILQ_INIT(&aio_jobs); 4511ce91824SDavid Xu aiod_unr = new_unrhdr(1, INT_MAX, NULL); 452c897b813SJeff Roberson kaio_zone = uma_zcreate("AIO", sizeof(struct kaioinfo), NULL, NULL, 453c897b813SJeff Roberson NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 454c897b813SJeff Roberson aiop_zone = uma_zcreate("AIOP", sizeof(struct aiothreadlist), NULL, 455c897b813SJeff Roberson NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 456c897b813SJeff Roberson aiocb_zone = uma_zcreate("AIOCB", sizeof(struct aiocblist), NULL, NULL, 457c897b813SJeff Roberson NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 458c897b813SJeff Roberson aiol_zone = uma_zcreate("AIOL", AIO_LISTIO_MAX*sizeof(intptr_t) , NULL, 459c897b813SJeff Roberson NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 4601ce91824SDavid Xu aiolio_zone = uma_zcreate("AIOLIO", sizeof(struct aioliojob), NULL, 461c897b813SJeff Roberson NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 46284af4da6SJohn Dyson aiod_timeout = AIOD_TIMEOUT_DEFAULT; 46384af4da6SJohn Dyson aiod_lifetime = AIOD_LIFETIME_DEFAULT; 464fd3bf775SJohn Dyson jobrefid = 1; 465c7047e52SGarrett Wollman async_io_version = _POSIX_VERSION; 466c844abc9SAlfred Perlstein p31b_setcfg(CTL_P1003_1B_AIO_LISTIO_MAX, AIO_LISTIO_MAX); 46786d52125SAlfred Perlstein p31b_setcfg(CTL_P1003_1B_AIO_MAX, MAX_AIO_QUEUE); 46886d52125SAlfred Perlstein p31b_setcfg(CTL_P1003_1B_AIO_PRIO_DELTA_MAX, 0); 4692244ea07SJohn Dyson } 4702244ea07SJohn Dyson 471eb8e6d52SEivind Eklund /* 472eb8e6d52SEivind Eklund * Callback for unload of AIO when used as a module. 473eb8e6d52SEivind Eklund */ 47421d56e9cSAlfred Perlstein static int 47521d56e9cSAlfred Perlstein aio_unload(void) 47621d56e9cSAlfred Perlstein { 477ad3b9257SJohn-Mark Gurney int error; 47821d56e9cSAlfred Perlstein 47921d56e9cSAlfred Perlstein /* 48021d56e9cSAlfred Perlstein * XXX: no unloads by default, it's too dangerous. 48121d56e9cSAlfred Perlstein * perhaps we could do it if locked out callers and then 48221d56e9cSAlfred Perlstein * did an aio_proc_rundown() on each process. 4832a522eb9SJohn Baldwin * 4842a522eb9SJohn Baldwin * jhb: aio_proc_rundown() needs to run on curproc though, 4852a522eb9SJohn Baldwin * so I don't think that would fly. 48621d56e9cSAlfred Perlstein */ 48721d56e9cSAlfred Perlstein if (!unloadable) 48821d56e9cSAlfred Perlstein return (EOPNOTSUPP); 48921d56e9cSAlfred Perlstein 490ad3b9257SJohn-Mark Gurney error = kqueue_del_filteropts(EVFILT_AIO); 491ad3b9257SJohn-Mark Gurney if (error) 492ad3b9257SJohn-Mark Gurney return error; 493bd793be3SDavid Xu error = kqueue_del_filteropts(EVFILT_LIO); 494bd793be3SDavid Xu if (error) 495bd793be3SDavid Xu return error; 496c7047e52SGarrett Wollman async_io_version = 0; 49721d56e9cSAlfred Perlstein aio_swake = NULL; 4981ce91824SDavid Xu taskqueue_free(taskqueue_aiod_bio); 4991ce91824SDavid Xu delete_unrhdr(aiod_unr); 500bd793be3SDavid Xu uma_zdestroy(kaio_zone); 501bd793be3SDavid Xu uma_zdestroy(aiop_zone); 502bd793be3SDavid Xu uma_zdestroy(aiocb_zone); 503bd793be3SDavid Xu uma_zdestroy(aiol_zone); 504bd793be3SDavid Xu uma_zdestroy(aiolio_zone); 50575b8b3b2SJohn Baldwin EVENTHANDLER_DEREGISTER(process_exit, exit_tag); 50675b8b3b2SJohn Baldwin EVENTHANDLER_DEREGISTER(process_exec, exec_tag); 5071ce91824SDavid Xu mtx_destroy(&aio_job_mtx); 5081ce91824SDavid Xu mtx_destroy(&aio_sock_mtx); 5091ce91824SDavid Xu sema_destroy(&aio_newproc_sem); 510f51c1e89SAlfred Perlstein p31b_setcfg(CTL_P1003_1B_AIO_LISTIO_MAX, -1); 511f51c1e89SAlfred Perlstein p31b_setcfg(CTL_P1003_1B_AIO_MAX, -1); 512f51c1e89SAlfred Perlstein p31b_setcfg(CTL_P1003_1B_AIO_PRIO_DELTA_MAX, -1); 51321d56e9cSAlfred Perlstein return (0); 51421d56e9cSAlfred Perlstein } 51521d56e9cSAlfred Perlstein 5162244ea07SJohn Dyson /* 517bfbbc4aaSJason Evans * Init the per-process aioinfo structure. The aioinfo limits are set 518bfbbc4aaSJason Evans * per-process for user limit (resource) management. 5192244ea07SJohn Dyson */ 5206a1162d4SAlexander Leidinger void 521fd3bf775SJohn Dyson aio_init_aioinfo(struct proc *p) 522fd3bf775SJohn Dyson { 5232244ea07SJohn Dyson struct kaioinfo *ki; 524ac41f2efSAlfred Perlstein 525a163d034SWarner Losh ki = uma_zalloc(kaio_zone, M_WAITOK); 526759ccccaSDavid Xu mtx_init(&ki->kaio_mtx, "aiomtx", NULL, MTX_DEF); 52784af4da6SJohn Dyson ki->kaio_flags = 0; 528a624e84fSJohn Dyson ki->kaio_maxactive_count = max_aio_per_proc; 5292244ea07SJohn Dyson ki->kaio_active_count = 0; 530a624e84fSJohn Dyson ki->kaio_qallowed_count = max_aio_queue_per_proc; 5311ce91824SDavid Xu ki->kaio_count = 0; 53284af4da6SJohn Dyson ki->kaio_ballowed_count = max_buf_aio; 533fd3bf775SJohn Dyson ki->kaio_buffer_count = 0; 5341ce91824SDavid Xu TAILQ_INIT(&ki->kaio_all); 5351ce91824SDavid Xu TAILQ_INIT(&ki->kaio_done); 5362244ea07SJohn Dyson TAILQ_INIT(&ki->kaio_jobqueue); 537fd3bf775SJohn Dyson TAILQ_INIT(&ki->kaio_bufqueue); 53884af4da6SJohn Dyson TAILQ_INIT(&ki->kaio_liojoblist); 539bfbbc4aaSJason Evans TAILQ_INIT(&ki->kaio_sockqueue); 54099eee864SDavid Xu TAILQ_INIT(&ki->kaio_syncqueue); 54199eee864SDavid Xu TASK_INIT(&ki->kaio_task, 0, aio_kick_helper, p); 5423999ebe3SAlan Cox PROC_LOCK(p); 5433999ebe3SAlan Cox if (p->p_aioinfo == NULL) { 5443999ebe3SAlan Cox p->p_aioinfo = ki; 5453999ebe3SAlan Cox PROC_UNLOCK(p); 5463999ebe3SAlan Cox } else { 5473999ebe3SAlan Cox PROC_UNLOCK(p); 548759ccccaSDavid Xu mtx_destroy(&ki->kaio_mtx); 5493999ebe3SAlan Cox uma_zfree(kaio_zone, ki); 5502244ea07SJohn Dyson } 551bfbbc4aaSJason Evans 55222035f47SOleksandr Tymoshenko while (num_aio_procs < MIN(target_aio_procs, max_aio_procs)) 5531ce91824SDavid Xu aio_newproc(NULL); 5542244ea07SJohn Dyson } 5552244ea07SJohn Dyson 5564c0fb2cfSDavid Xu static int 5574c0fb2cfSDavid Xu aio_sendsig(struct proc *p, struct sigevent *sigev, ksiginfo_t *ksi) 5584c0fb2cfSDavid Xu { 559759ccccaSDavid Xu int ret = 0; 560759ccccaSDavid Xu 561759ccccaSDavid Xu PROC_LOCK(p); 5624c0fb2cfSDavid Xu if (!KSI_ONQ(ksi)) { 5634c0fb2cfSDavid Xu ksi->ksi_code = SI_ASYNCIO; 5644c0fb2cfSDavid Xu ksi->ksi_flags |= KSI_EXT | KSI_INS; 565759ccccaSDavid Xu ret = psignal_event(p, sigev, ksi); 5664c0fb2cfSDavid Xu } 567759ccccaSDavid Xu PROC_UNLOCK(p); 568759ccccaSDavid Xu return (ret); 5694c0fb2cfSDavid Xu } 5704c0fb2cfSDavid Xu 5712244ea07SJohn Dyson /* 572bfbbc4aaSJason Evans * Free a job entry. Wait for completion if it is currently active, but don't 573bfbbc4aaSJason Evans * delay forever. If we delay, we return a flag that says that we have to 574bfbbc4aaSJason Evans * restart the queue scan. 5752244ea07SJohn Dyson */ 57688ed460eSAlan Cox static int 577fd3bf775SJohn Dyson aio_free_entry(struct aiocblist *aiocbe) 578fd3bf775SJohn Dyson { 5792244ea07SJohn Dyson struct kaioinfo *ki; 5801ce91824SDavid Xu struct aioliojob *lj; 5812244ea07SJohn Dyson struct proc *p; 5822244ea07SJohn Dyson 5832244ea07SJohn Dyson p = aiocbe->userproc; 5841ce91824SDavid Xu MPASS(curproc == p); 5852244ea07SJohn Dyson ki = p->p_aioinfo; 5861ce91824SDavid Xu MPASS(ki != NULL); 5871ce91824SDavid Xu 588759ccccaSDavid Xu AIO_LOCK_ASSERT(ki, MA_OWNED); 589759ccccaSDavid Xu MPASS(aiocbe->jobstate == JOBST_JOBFINISHED); 590759ccccaSDavid Xu 5911ce91824SDavid Xu atomic_subtract_int(&num_queue_count, 1); 5921ce91824SDavid Xu 5931ce91824SDavid Xu ki->kaio_count--; 5941ce91824SDavid Xu MPASS(ki->kaio_count >= 0); 5951ce91824SDavid Xu 59627b8220dSDavid Xu TAILQ_REMOVE(&ki->kaio_done, aiocbe, plist); 59727b8220dSDavid Xu TAILQ_REMOVE(&ki->kaio_all, aiocbe, allist); 59827b8220dSDavid Xu 59984af4da6SJohn Dyson lj = aiocbe->lio; 60084af4da6SJohn Dyson if (lj) { 6011ce91824SDavid Xu lj->lioj_count--; 6021ce91824SDavid Xu lj->lioj_finished_count--; 6031ce91824SDavid Xu 604a9bf5e37SDavid Xu if (lj->lioj_count == 0) { 6051ce91824SDavid Xu TAILQ_REMOVE(&ki->kaio_liojoblist, lj, lioj_list); 6061ce91824SDavid Xu /* lio is going away, we need to destroy any knotes */ 6071ce91824SDavid Xu knlist_delete(&lj->klist, curthread, 1); 608759ccccaSDavid Xu PROC_LOCK(p); 6091ce91824SDavid Xu sigqueue_take(&lj->lioj_ksi); 610759ccccaSDavid Xu PROC_UNLOCK(p); 6111ce91824SDavid Xu uma_zfree(aiolio_zone, lj); 61284af4da6SJohn Dyson } 61384af4da6SJohn Dyson } 6141ce91824SDavid Xu 615cb679c38SJonathan Lemon /* aiocbe is going away, we need to destroy any knotes */ 6161ce91824SDavid Xu knlist_delete(&aiocbe->klist, curthread, 1); 617759ccccaSDavid Xu PROC_LOCK(p); 6181ce91824SDavid Xu sigqueue_take(&aiocbe->ksi); 619759ccccaSDavid Xu PROC_UNLOCK(p); 6201ce91824SDavid Xu 6211ce91824SDavid Xu MPASS(aiocbe->bp == NULL); 6221ce91824SDavid Xu aiocbe->jobstate = JOBST_NULL; 623759ccccaSDavid Xu AIO_UNLOCK(ki); 6242a522eb9SJohn Baldwin 6252a522eb9SJohn Baldwin /* 6262a522eb9SJohn Baldwin * The thread argument here is used to find the owning process 6272a522eb9SJohn Baldwin * and is also passed to fo_close() which may pass it to various 6282a522eb9SJohn Baldwin * places such as devsw close() routines. Because of that, we 6292a522eb9SJohn Baldwin * need a thread pointer from the process owning the job that is 6302a522eb9SJohn Baldwin * persistent and won't disappear out from under us or move to 6312a522eb9SJohn Baldwin * another process. 6322a522eb9SJohn Baldwin * 6332a522eb9SJohn Baldwin * Currently, all the callers of this function call it to remove 6342a522eb9SJohn Baldwin * an aiocblist from the current process' job list either via a 6352a522eb9SJohn Baldwin * syscall or due to the current process calling exit() or 6362a522eb9SJohn Baldwin * execve(). Thus, we know that p == curproc. We also know that 6372a522eb9SJohn Baldwin * curthread can't exit since we are curthread. 6382a522eb9SJohn Baldwin * 6392a522eb9SJohn Baldwin * Therefore, we use curthread as the thread to pass to 6402a522eb9SJohn Baldwin * knlist_delete(). This does mean that it is possible for the 6412a522eb9SJohn Baldwin * thread pointer at close time to differ from the thread pointer 6422a522eb9SJohn Baldwin * at open time, but this is already true of file descriptors in 6432a522eb9SJohn Baldwin * a multithreaded process. 644b40ce416SJulian Elischer */ 645a5c0b1c0SAlan Cox fdrop(aiocbe->fd_file, curthread); 646f8f750c5SRobert Watson crfree(aiocbe->cred); 647c897b813SJeff Roberson uma_zfree(aiocb_zone, aiocbe); 648759ccccaSDavid Xu AIO_LOCK(ki); 6491ce91824SDavid Xu 650ac41f2efSAlfred Perlstein return (0); 6512244ea07SJohn Dyson } 6522244ea07SJohn Dyson 653993182e5SAlexander Leidinger static void 654993182e5SAlexander Leidinger aio_proc_rundown_exec(void *arg, struct proc *p, struct image_params *imgp __unused) 655993182e5SAlexander Leidinger { 656993182e5SAlexander Leidinger aio_proc_rundown(arg, p); 657993182e5SAlexander Leidinger } 658993182e5SAlexander Leidinger 6592244ea07SJohn Dyson /* 6602244ea07SJohn Dyson * Rundown the jobs for a given process. 6612244ea07SJohn Dyson */ 66221d56e9cSAlfred Perlstein static void 66375b8b3b2SJohn Baldwin aio_proc_rundown(void *arg, struct proc *p) 664fd3bf775SJohn Dyson { 6652244ea07SJohn Dyson struct kaioinfo *ki; 6661ce91824SDavid Xu struct aioliojob *lj; 6671ce91824SDavid Xu struct aiocblist *cbe, *cbn; 668bfbbc4aaSJason Evans struct file *fp; 669bfbbc4aaSJason Evans struct socket *so; 6701aa4c324SDavid Xu int remove; 6712244ea07SJohn Dyson 6722a522eb9SJohn Baldwin KASSERT(curthread->td_proc == p, 6732a522eb9SJohn Baldwin ("%s: called on non-curproc", __func__)); 6742244ea07SJohn Dyson ki = p->p_aioinfo; 6752244ea07SJohn Dyson if (ki == NULL) 6762244ea07SJohn Dyson return; 6772244ea07SJohn Dyson 678759ccccaSDavid Xu AIO_LOCK(ki); 67927b8220dSDavid Xu ki->kaio_flags |= KAIO_RUNDOWN; 6801ce91824SDavid Xu 6811ce91824SDavid Xu restart: 682a624e84fSJohn Dyson 683bfbbc4aaSJason Evans /* 6841ce91824SDavid Xu * Try to cancel all pending requests. This code simulates 6851ce91824SDavid Xu * aio_cancel on all pending I/O requests. 686bfbbc4aaSJason Evans */ 6871ce91824SDavid Xu TAILQ_FOREACH_SAFE(cbe, &ki->kaio_jobqueue, plist, cbn) { 6881aa4c324SDavid Xu remove = 0; 6891ce91824SDavid Xu mtx_lock(&aio_job_mtx); 6901ce91824SDavid Xu if (cbe->jobstate == JOBST_JOBQGLOBAL) { 6911ce91824SDavid Xu TAILQ_REMOVE(&aio_jobs, cbe, list); 6921aa4c324SDavid Xu remove = 1; 6931aa4c324SDavid Xu } else if (cbe->jobstate == JOBST_JOBQSOCK) { 6941aa4c324SDavid Xu fp = cbe->fd_file; 6951aa4c324SDavid Xu MPASS(fp->f_type == DTYPE_SOCKET); 6961aa4c324SDavid Xu so = fp->f_data; 6971aa4c324SDavid Xu TAILQ_REMOVE(&so->so_aiojobq, cbe, list); 6981aa4c324SDavid Xu remove = 1; 69999eee864SDavid Xu } else if (cbe->jobstate == JOBST_JOBQSYNC) { 70099eee864SDavid Xu TAILQ_REMOVE(&ki->kaio_syncqueue, cbe, list); 70199eee864SDavid Xu remove = 1; 7021aa4c324SDavid Xu } 7031ce91824SDavid Xu mtx_unlock(&aio_job_mtx); 7041aa4c324SDavid Xu 7051aa4c324SDavid Xu if (remove) { 7061ce91824SDavid Xu cbe->jobstate = JOBST_JOBFINISHED; 7071ce91824SDavid Xu cbe->uaiocb._aiocb_private.status = -1; 7081ce91824SDavid Xu cbe->uaiocb._aiocb_private.error = ECANCELED; 7091ce91824SDavid Xu TAILQ_REMOVE(&ki->kaio_jobqueue, cbe, plist); 7101ce91824SDavid Xu aio_bio_done_notify(p, cbe, DONE_QUEUE); 7111ce91824SDavid Xu } 7122244ea07SJohn Dyson } 71384af4da6SJohn Dyson 7141ce91824SDavid Xu /* Wait for all running I/O to be finished */ 7151ce91824SDavid Xu if (TAILQ_FIRST(&ki->kaio_bufqueue) || 7161ce91824SDavid Xu TAILQ_FIRST(&ki->kaio_jobqueue)) { 71784af4da6SJohn Dyson ki->kaio_flags |= KAIO_WAKEUP; 718759ccccaSDavid Xu msleep(&p->p_aioinfo, AIO_MTX(ki), PRIBIO, "aioprn", hz); 7191ce91824SDavid Xu goto restart; 72084af4da6SJohn Dyson } 72184af4da6SJohn Dyson 7221ce91824SDavid Xu /* Free all completed I/O requests. */ 7231ce91824SDavid Xu while ((cbe = TAILQ_FIRST(&ki->kaio_done)) != NULL) 7241ce91824SDavid Xu aio_free_entry(cbe); 72584af4da6SJohn Dyson 7261ce91824SDavid Xu while ((lj = TAILQ_FIRST(&ki->kaio_liojoblist)) != NULL) { 727a9bf5e37SDavid Xu if (lj->lioj_count == 0) { 72884af4da6SJohn Dyson TAILQ_REMOVE(&ki->kaio_liojoblist, lj, lioj_list); 7291ce91824SDavid Xu knlist_delete(&lj->klist, curthread, 1); 730759ccccaSDavid Xu PROC_LOCK(p); 7311ce91824SDavid Xu sigqueue_take(&lj->lioj_ksi); 732759ccccaSDavid Xu PROC_UNLOCK(p); 733c897b813SJeff Roberson uma_zfree(aiolio_zone, lj); 734f4f0ecefSJohn Dyson } else { 735a9bf5e37SDavid Xu panic("LIO job not cleaned up: C:%d, FC:%d\n", 736a9bf5e37SDavid Xu lj->lioj_count, lj->lioj_finished_count); 73784af4da6SJohn Dyson } 738f4f0ecefSJohn Dyson } 739759ccccaSDavid Xu AIO_UNLOCK(ki); 74099eee864SDavid Xu taskqueue_drain(taskqueue_aiod_bio, &ki->kaio_task); 7415114048bSKonstantin Belousov mtx_destroy(&ki->kaio_mtx); 742c897b813SJeff Roberson uma_zfree(kaio_zone, ki); 743a624e84fSJohn Dyson p->p_aioinfo = NULL; 7442244ea07SJohn Dyson } 7452244ea07SJohn Dyson 7462244ea07SJohn Dyson /* 747bfbbc4aaSJason Evans * Select a job to run (called by an AIO daemon). 7482244ea07SJohn Dyson */ 7492244ea07SJohn Dyson static struct aiocblist * 750b40ce416SJulian Elischer aio_selectjob(struct aiothreadlist *aiop) 751fd3bf775SJohn Dyson { 7522244ea07SJohn Dyson struct aiocblist *aiocbe; 753bfbbc4aaSJason Evans struct kaioinfo *ki; 754bfbbc4aaSJason Evans struct proc *userp; 7552244ea07SJohn Dyson 7561ce91824SDavid Xu mtx_assert(&aio_job_mtx, MA_OWNED); 7572a522eb9SJohn Baldwin TAILQ_FOREACH(aiocbe, &aio_jobs, list) { 7582244ea07SJohn Dyson userp = aiocbe->userproc; 7592244ea07SJohn Dyson ki = userp->p_aioinfo; 7602244ea07SJohn Dyson 7612244ea07SJohn Dyson if (ki->kaio_active_count < ki->kaio_maxactive_count) { 7622244ea07SJohn Dyson TAILQ_REMOVE(&aio_jobs, aiocbe, list); 7631ce91824SDavid Xu /* Account for currently active jobs. */ 7641ce91824SDavid Xu ki->kaio_active_count++; 7651ce91824SDavid Xu aiocbe->jobstate = JOBST_JOBRUNNING; 7661ce91824SDavid Xu break; 7671ce91824SDavid Xu } 7681ce91824SDavid Xu } 769ac41f2efSAlfred Perlstein return (aiocbe); 7702244ea07SJohn Dyson } 7712244ea07SJohn Dyson 7722244ea07SJohn Dyson /* 77399eee864SDavid Xu * Move all data to a permanent storage device, this code 77499eee864SDavid Xu * simulates fsync syscall. 77599eee864SDavid Xu */ 77699eee864SDavid Xu static int 77799eee864SDavid Xu aio_fsync_vnode(struct thread *td, struct vnode *vp) 77899eee864SDavid Xu { 77999eee864SDavid Xu struct mount *mp; 78099eee864SDavid Xu int vfslocked; 78199eee864SDavid Xu int error; 78299eee864SDavid Xu 78399eee864SDavid Xu vfslocked = VFS_LOCK_GIANT(vp->v_mount); 78499eee864SDavid Xu if ((error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0) 78599eee864SDavid Xu goto drop; 786cb05b60aSAttilio Rao vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); 78799eee864SDavid Xu if (vp->v_object != NULL) { 78899eee864SDavid Xu VM_OBJECT_LOCK(vp->v_object); 78999eee864SDavid Xu vm_object_page_clean(vp->v_object, 0, 0, 0); 79099eee864SDavid Xu VM_OBJECT_UNLOCK(vp->v_object); 79199eee864SDavid Xu } 79299eee864SDavid Xu error = VOP_FSYNC(vp, MNT_WAIT, td); 79399eee864SDavid Xu 79422db15c0SAttilio Rao VOP_UNLOCK(vp, 0); 79599eee864SDavid Xu vn_finished_write(mp); 79699eee864SDavid Xu drop: 79799eee864SDavid Xu VFS_UNLOCK_GIANT(vfslocked); 79899eee864SDavid Xu return (error); 79999eee864SDavid Xu } 80099eee864SDavid Xu 80199eee864SDavid Xu /* 802bfbbc4aaSJason Evans * The AIO processing activity. This is the code that does the I/O request for 803bfbbc4aaSJason Evans * the non-physio version of the operations. The normal vn operations are used, 804bfbbc4aaSJason Evans * and this code should work in all instances for every type of file, including 805bfbbc4aaSJason Evans * pipes, sockets, fifos, and regular files. 8061ce91824SDavid Xu * 8071aa4c324SDavid Xu * XXX I don't think it works well for socket, pipe, and fifo. 8082244ea07SJohn Dyson */ 80988ed460eSAlan Cox static void 810fd3bf775SJohn Dyson aio_process(struct aiocblist *aiocbe) 811fd3bf775SJohn Dyson { 812f8f750c5SRobert Watson struct ucred *td_savedcred; 813b40ce416SJulian Elischer struct thread *td; 8142244ea07SJohn Dyson struct aiocb *cb; 8152244ea07SJohn Dyson struct file *fp; 8161ce91824SDavid Xu struct socket *so; 8172244ea07SJohn Dyson struct uio auio; 8182244ea07SJohn Dyson struct iovec aiov; 8192244ea07SJohn Dyson int cnt; 8202244ea07SJohn Dyson int error; 821fd3bf775SJohn Dyson int oublock_st, oublock_end; 822fd3bf775SJohn Dyson int inblock_st, inblock_end; 8232244ea07SJohn Dyson 824b40ce416SJulian Elischer td = curthread; 825f8f750c5SRobert Watson td_savedcred = td->td_ucred; 826f8f750c5SRobert Watson td->td_ucred = aiocbe->cred; 8272244ea07SJohn Dyson cb = &aiocbe->uaiocb; 82800e73160SAlan Cox fp = aiocbe->fd_file; 829bfbbc4aaSJason Evans 83099eee864SDavid Xu if (cb->aio_lio_opcode == LIO_SYNC) { 83199eee864SDavid Xu error = 0; 83299eee864SDavid Xu cnt = 0; 83399eee864SDavid Xu if (fp->f_vnode != NULL) 83499eee864SDavid Xu error = aio_fsync_vnode(td, fp->f_vnode); 83599eee864SDavid Xu cb->_aiocb_private.error = error; 83699eee864SDavid Xu cb->_aiocb_private.status = 0; 83799eee864SDavid Xu td->td_ucred = td_savedcred; 83899eee864SDavid Xu return; 83999eee864SDavid Xu } 84099eee864SDavid Xu 84191369fc7SAlan Cox aiov.iov_base = (void *)(uintptr_t)cb->aio_buf; 8422244ea07SJohn Dyson aiov.iov_len = cb->aio_nbytes; 8432244ea07SJohn Dyson 8442244ea07SJohn Dyson auio.uio_iov = &aiov; 8452244ea07SJohn Dyson auio.uio_iovcnt = 1; 8469b16adc1SAlan Cox auio.uio_offset = cb->aio_offset; 8472244ea07SJohn Dyson auio.uio_resid = cb->aio_nbytes; 8482244ea07SJohn Dyson cnt = cb->aio_nbytes; 8492244ea07SJohn Dyson auio.uio_segflg = UIO_USERSPACE; 850b40ce416SJulian Elischer auio.uio_td = td; 8512244ea07SJohn Dyson 8521c4bcd05SJeff Roberson inblock_st = td->td_ru.ru_inblock; 8531c4bcd05SJeff Roberson oublock_st = td->td_ru.ru_oublock; 854279d7226SMatthew Dillon /* 855a9bf5e37SDavid Xu * aio_aqueue() acquires a reference to the file that is 8569b16adc1SAlan Cox * released in aio_free_entry(). 857279d7226SMatthew Dillon */ 8582244ea07SJohn Dyson if (cb->aio_lio_opcode == LIO_READ) { 8592244ea07SJohn Dyson auio.uio_rw = UIO_READ; 8605114048bSKonstantin Belousov if (auio.uio_resid == 0) 8615114048bSKonstantin Belousov error = 0; 8625114048bSKonstantin Belousov else 863b40ce416SJulian Elischer error = fo_read(fp, &auio, fp->f_cred, FOF_OFFSET, td); 8642244ea07SJohn Dyson } else { 8656d53aa62SDavid Xu if (fp->f_type == DTYPE_VNODE) 8666d53aa62SDavid Xu bwillwrite(); 8672244ea07SJohn Dyson auio.uio_rw = UIO_WRITE; 868b40ce416SJulian Elischer error = fo_write(fp, &auio, fp->f_cred, FOF_OFFSET, td); 8692244ea07SJohn Dyson } 8701c4bcd05SJeff Roberson inblock_end = td->td_ru.ru_inblock; 8711c4bcd05SJeff Roberson oublock_end = td->td_ru.ru_oublock; 872fd3bf775SJohn Dyson 873fd3bf775SJohn Dyson aiocbe->inputcharge = inblock_end - inblock_st; 874fd3bf775SJohn Dyson aiocbe->outputcharge = oublock_end - oublock_st; 8752244ea07SJohn Dyson 876bfbbc4aaSJason Evans if ((error) && (auio.uio_resid != cnt)) { 8772244ea07SJohn Dyson if (error == ERESTART || error == EINTR || error == EWOULDBLOCK) 8782244ea07SJohn Dyson error = 0; 87919eb87d2SJohn Baldwin if ((error == EPIPE) && (cb->aio_lio_opcode == LIO_WRITE)) { 8801ce91824SDavid Xu int sigpipe = 1; 8811ce91824SDavid Xu if (fp->f_type == DTYPE_SOCKET) { 8821ce91824SDavid Xu so = fp->f_data; 8831ce91824SDavid Xu if (so->so_options & SO_NOSIGPIPE) 8841ce91824SDavid Xu sigpipe = 0; 8851ce91824SDavid Xu } 8861ce91824SDavid Xu if (sigpipe) { 8879b16adc1SAlan Cox PROC_LOCK(aiocbe->userproc); 8889b16adc1SAlan Cox psignal(aiocbe->userproc, SIGPIPE); 8899b16adc1SAlan Cox PROC_UNLOCK(aiocbe->userproc); 89019eb87d2SJohn Baldwin } 8912244ea07SJohn Dyson } 8921ce91824SDavid Xu } 8932244ea07SJohn Dyson 8942244ea07SJohn Dyson cnt -= auio.uio_resid; 8952244ea07SJohn Dyson cb->_aiocb_private.error = error; 8962244ea07SJohn Dyson cb->_aiocb_private.status = cnt; 897f8f750c5SRobert Watson td->td_ucred = td_savedcred; 8982244ea07SJohn Dyson } 8992244ea07SJohn Dyson 90069cd28daSDoug Ambrisko static void 9011ce91824SDavid Xu aio_bio_done_notify(struct proc *userp, struct aiocblist *aiocbe, int type) 9021ce91824SDavid Xu { 9031ce91824SDavid Xu struct aioliojob *lj; 90469cd28daSDoug Ambrisko struct kaioinfo *ki; 90599eee864SDavid Xu struct aiocblist *scb, *scbn; 9061ce91824SDavid Xu int lj_done; 90769cd28daSDoug Ambrisko 90869cd28daSDoug Ambrisko ki = userp->p_aioinfo; 909759ccccaSDavid Xu AIO_LOCK_ASSERT(ki, MA_OWNED); 91069cd28daSDoug Ambrisko lj = aiocbe->lio; 91169cd28daSDoug Ambrisko lj_done = 0; 91269cd28daSDoug Ambrisko if (lj) { 9131ce91824SDavid Xu lj->lioj_finished_count++; 9141ce91824SDavid Xu if (lj->lioj_count == lj->lioj_finished_count) 91569cd28daSDoug Ambrisko lj_done = 1; 91669cd28daSDoug Ambrisko } 91769cd28daSDoug Ambrisko if (type == DONE_QUEUE) { 9181ce91824SDavid Xu aiocbe->jobflags |= AIOCBLIST_DONE; 91969cd28daSDoug Ambrisko } else { 9201ce91824SDavid Xu aiocbe->jobflags |= AIOCBLIST_BUFDONE; 92169cd28daSDoug Ambrisko } 9221ce91824SDavid Xu TAILQ_INSERT_TAIL(&ki->kaio_done, aiocbe, plist); 9231ce91824SDavid Xu aiocbe->jobstate = JOBST_JOBFINISHED; 92427b8220dSDavid Xu 92527b8220dSDavid Xu if (ki->kaio_flags & KAIO_RUNDOWN) 92627b8220dSDavid Xu goto notification_done; 92727b8220dSDavid Xu 9281ce91824SDavid Xu if (aiocbe->uaiocb.aio_sigevent.sigev_notify == SIGEV_SIGNAL || 9291ce91824SDavid Xu aiocbe->uaiocb.aio_sigevent.sigev_notify == SIGEV_THREAD_ID) 9301ce91824SDavid Xu aio_sendsig(userp, &aiocbe->uaiocb.aio_sigevent, &aiocbe->ksi); 9311ce91824SDavid Xu 9321ce91824SDavid Xu KNOTE_LOCKED(&aiocbe->klist, 1); 9331ce91824SDavid Xu 93469cd28daSDoug Ambrisko if (lj_done) { 9351ce91824SDavid Xu if (lj->lioj_signal.sigev_notify == SIGEV_KEVENT) { 93669cd28daSDoug Ambrisko lj->lioj_flags |= LIOJ_KEVENT_POSTED; 9371ce91824SDavid Xu KNOTE_LOCKED(&lj->klist, 1); 93869cd28daSDoug Ambrisko } 9391ce91824SDavid Xu if ((lj->lioj_flags & (LIOJ_SIGNAL|LIOJ_SIGNAL_POSTED)) 94069cd28daSDoug Ambrisko == LIOJ_SIGNAL 9414c0fb2cfSDavid Xu && (lj->lioj_signal.sigev_notify == SIGEV_SIGNAL || 9424c0fb2cfSDavid Xu lj->lioj_signal.sigev_notify == SIGEV_THREAD_ID)) { 9434c0fb2cfSDavid Xu aio_sendsig(userp, &lj->lioj_signal, &lj->lioj_ksi); 94469cd28daSDoug Ambrisko lj->lioj_flags |= LIOJ_SIGNAL_POSTED; 94569cd28daSDoug Ambrisko } 94669cd28daSDoug Ambrisko } 94727b8220dSDavid Xu 94827b8220dSDavid Xu notification_done: 94999eee864SDavid Xu if (aiocbe->jobflags & AIOCBLIST_CHECKSYNC) { 95099eee864SDavid Xu TAILQ_FOREACH_SAFE(scb, &ki->kaio_syncqueue, list, scbn) { 951dbbccfe9SDavid Xu if (aiocbe->fd_file == scb->fd_file && 95299eee864SDavid Xu aiocbe->seqno < scb->seqno) { 95399eee864SDavid Xu if (--scb->pending == 0) { 95499eee864SDavid Xu mtx_lock(&aio_job_mtx); 95599eee864SDavid Xu scb->jobstate = JOBST_JOBQGLOBAL; 95699eee864SDavid Xu TAILQ_REMOVE(&ki->kaio_syncqueue, scb, list); 95799eee864SDavid Xu TAILQ_INSERT_TAIL(&aio_jobs, scb, list); 95899eee864SDavid Xu aio_kick_nowait(userp); 95999eee864SDavid Xu mtx_unlock(&aio_job_mtx); 96099eee864SDavid Xu } 96199eee864SDavid Xu } 96299eee864SDavid Xu } 96399eee864SDavid Xu } 96427b8220dSDavid Xu if (ki->kaio_flags & KAIO_WAKEUP) { 96569cd28daSDoug Ambrisko ki->kaio_flags &= ~KAIO_WAKEUP; 9661ce91824SDavid Xu wakeup(&userp->p_aioinfo); 96769cd28daSDoug Ambrisko } 96869cd28daSDoug Ambrisko } 96969cd28daSDoug Ambrisko 9702244ea07SJohn Dyson /* 97184af4da6SJohn Dyson * The AIO daemon, most of the actual work is done in aio_process, 97284af4da6SJohn Dyson * but the setup (and address space mgmt) is done in this routine. 9732244ea07SJohn Dyson */ 9742244ea07SJohn Dyson static void 9751ce91824SDavid Xu aio_daemon(void *_id) 9762244ea07SJohn Dyson { 977bfbbc4aaSJason Evans struct aiocblist *aiocbe; 978b40ce416SJulian Elischer struct aiothreadlist *aiop; 979bfbbc4aaSJason Evans struct kaioinfo *ki; 980bfbbc4aaSJason Evans struct proc *curcp, *mycp, *userp; 981bfbbc4aaSJason Evans struct vmspace *myvm, *tmpvm; 982b40ce416SJulian Elischer struct thread *td = curthread; 9831ce91824SDavid Xu int id = (intptr_t)_id; 9842244ea07SJohn Dyson 9852244ea07SJohn Dyson /* 986fd3bf775SJohn Dyson * Local copies of curproc (cp) and vmspace (myvm) 9872244ea07SJohn Dyson */ 988b40ce416SJulian Elischer mycp = td->td_proc; 989fd3bf775SJohn Dyson myvm = mycp->p_vmspace; 990fd3bf775SJohn Dyson 991cd4ed3b5SJohn Baldwin KASSERT(mycp->p_textvp == NULL, ("kthread has a textvp")); 992fd3bf775SJohn Dyson 993fd3bf775SJohn Dyson /* 994bfbbc4aaSJason Evans * Allocate and ready the aio control info. There is one aiop structure 995bfbbc4aaSJason Evans * per daemon. 996fd3bf775SJohn Dyson */ 997a163d034SWarner Losh aiop = uma_zalloc(aiop_zone, M_WAITOK); 998b40ce416SJulian Elischer aiop->aiothread = td; 99999eee864SDavid Xu aiop->aiothreadflags = 0; 1000bfbbc4aaSJason Evans 1001e6bdc05fSDavid Xu /* The daemon resides in its own pgrp. */ 1002bd793be3SDavid Xu setsid(td, NULL); 1003fd3bf775SJohn Dyson 1004fd3bf775SJohn Dyson /* 1005fd3bf775SJohn Dyson * Wakeup parent process. (Parent sleeps to keep from blasting away 1006b40ce416SJulian Elischer * and creating too many daemons.) 1007fd3bf775SJohn Dyson */ 10081ce91824SDavid Xu sema_post(&aio_newproc_sem); 10092244ea07SJohn Dyson 10101ce91824SDavid Xu mtx_lock(&aio_job_mtx); 1011bfbbc4aaSJason Evans for (;;) { 1012fd3bf775SJohn Dyson /* 1013fd3bf775SJohn Dyson * curcp is the current daemon process context. 1014fd3bf775SJohn Dyson * userp is the current user process context. 1015fd3bf775SJohn Dyson */ 1016fd3bf775SJohn Dyson curcp = mycp; 1017c4860686SJohn Dyson 1018fd3bf775SJohn Dyson /* 1019fd3bf775SJohn Dyson * Take daemon off of free queue 1020fd3bf775SJohn Dyson */ 1021b40ce416SJulian Elischer if (aiop->aiothreadflags & AIOP_FREE) { 10222244ea07SJohn Dyson TAILQ_REMOVE(&aio_freeproc, aiop, list); 1023b40ce416SJulian Elischer aiop->aiothreadflags &= ~AIOP_FREE; 10242244ea07SJohn Dyson } 10252244ea07SJohn Dyson 1026fd3bf775SJohn Dyson /* 1027bfbbc4aaSJason Evans * Check for jobs. 1028fd3bf775SJohn Dyson */ 1029d254af07SMatthew Dillon while ((aiocbe = aio_selectjob(aiop)) != NULL) { 10301ce91824SDavid Xu mtx_unlock(&aio_job_mtx); 10312244ea07SJohn Dyson userp = aiocbe->userproc; 10322244ea07SJohn Dyson 1033fd3bf775SJohn Dyson /* 1034bfbbc4aaSJason Evans * Connect to process address space for user program. 1035fd3bf775SJohn Dyson */ 1036fd3bf775SJohn Dyson if (userp != curcp) { 1037fd3bf775SJohn Dyson /* 1038bfbbc4aaSJason Evans * Save the current address space that we are 1039bfbbc4aaSJason Evans * connected to. 1040fd3bf775SJohn Dyson */ 1041fd3bf775SJohn Dyson tmpvm = mycp->p_vmspace; 1042bfbbc4aaSJason Evans 1043fd3bf775SJohn Dyson /* 1044bfbbc4aaSJason Evans * Point to the new user address space, and 1045bfbbc4aaSJason Evans * refer to it. 1046fd3bf775SJohn Dyson */ 1047fd3bf775SJohn Dyson mycp->p_vmspace = userp->p_vmspace; 10481a276a3fSAlan Cox atomic_add_int(&mycp->p_vmspace->vm_refcnt, 1); 1049bfbbc4aaSJason Evans 1050bfbbc4aaSJason Evans /* Activate the new mapping. */ 1051079b7badSJulian Elischer pmap_activate(FIRST_THREAD_IN_PROC(mycp)); 1052bfbbc4aaSJason Evans 1053fd3bf775SJohn Dyson /* 1054bfbbc4aaSJason Evans * If the old address space wasn't the daemons 1055bfbbc4aaSJason Evans * own address space, then we need to remove the 1056bfbbc4aaSJason Evans * daemon's reference from the other process 1057bfbbc4aaSJason Evans * that it was acting on behalf of. 1058fd3bf775SJohn Dyson */ 10592244ea07SJohn Dyson if (tmpvm != myvm) { 10602244ea07SJohn Dyson vmspace_free(tmpvm); 10612244ea07SJohn Dyson } 1062fd3bf775SJohn Dyson curcp = userp; 10632244ea07SJohn Dyson } 10642244ea07SJohn Dyson 1065fd3bf775SJohn Dyson ki = userp->p_aioinfo; 106684af4da6SJohn Dyson 1067bfbbc4aaSJason Evans /* Do the I/O function. */ 10682244ea07SJohn Dyson aio_process(aiocbe); 106984af4da6SJohn Dyson 10709b84335cSDavid Xu mtx_lock(&aio_job_mtx); 10719b84335cSDavid Xu /* Decrement the active job count. */ 10729b84335cSDavid Xu ki->kaio_active_count--; 10739b84335cSDavid Xu mtx_unlock(&aio_job_mtx); 10749b84335cSDavid Xu 1075759ccccaSDavid Xu AIO_LOCK(ki); 10761ce91824SDavid Xu TAILQ_REMOVE(&ki->kaio_jobqueue, aiocbe, plist); 107769cd28daSDoug Ambrisko aio_bio_done_notify(userp, aiocbe, DONE_QUEUE); 1078759ccccaSDavid Xu AIO_UNLOCK(ki); 10791ce91824SDavid Xu 10801ce91824SDavid Xu mtx_lock(&aio_job_mtx); 10812244ea07SJohn Dyson } 10822244ea07SJohn Dyson 1083fd3bf775SJohn Dyson /* 1084bfbbc4aaSJason Evans * Disconnect from user address space. 1085fd3bf775SJohn Dyson */ 1086fd3bf775SJohn Dyson if (curcp != mycp) { 10871ce91824SDavid Xu 10881ce91824SDavid Xu mtx_unlock(&aio_job_mtx); 10891ce91824SDavid Xu 1090bfbbc4aaSJason Evans /* Get the user address space to disconnect from. */ 1091fd3bf775SJohn Dyson tmpvm = mycp->p_vmspace; 1092bfbbc4aaSJason Evans 1093bfbbc4aaSJason Evans /* Get original address space for daemon. */ 1094fd3bf775SJohn Dyson mycp->p_vmspace = myvm; 1095bfbbc4aaSJason Evans 1096bfbbc4aaSJason Evans /* Activate the daemon's address space. */ 1097079b7badSJulian Elischer pmap_activate(FIRST_THREAD_IN_PROC(mycp)); 1098bfbbc4aaSJason Evans #ifdef DIAGNOSTIC 1099bfbbc4aaSJason Evans if (tmpvm == myvm) { 1100bfbbc4aaSJason Evans printf("AIOD: vmspace problem -- %d\n", 1101bfbbc4aaSJason Evans mycp->p_pid); 1102bfbbc4aaSJason Evans } 110311783b14SJohn Dyson #endif 1104bfbbc4aaSJason Evans /* Remove our vmspace reference. */ 11052244ea07SJohn Dyson vmspace_free(tmpvm); 1106bfbbc4aaSJason Evans 1107fd3bf775SJohn Dyson curcp = mycp; 11081ce91824SDavid Xu 11091ce91824SDavid Xu mtx_lock(&aio_job_mtx); 11101ce91824SDavid Xu /* 11111ce91824SDavid Xu * We have to restart to avoid race, we only sleep if 11121ce91824SDavid Xu * no job can be selected, that should be 11131ce91824SDavid Xu * curcp == mycp. 11141ce91824SDavid Xu */ 11151ce91824SDavid Xu continue; 1116fd3bf775SJohn Dyson } 1117fd3bf775SJohn Dyson 11181ce91824SDavid Xu mtx_assert(&aio_job_mtx, MA_OWNED); 11191ce91824SDavid Xu 1120fd3bf775SJohn Dyson TAILQ_INSERT_HEAD(&aio_freeproc, aiop, list); 1121b40ce416SJulian Elischer aiop->aiothreadflags |= AIOP_FREE; 1122fd3bf775SJohn Dyson 1123fd3bf775SJohn Dyson /* 1124bfbbc4aaSJason Evans * If daemon is inactive for a long time, allow it to exit, 1125bfbbc4aaSJason Evans * thereby freeing resources. 1126fd3bf775SJohn Dyson */ 11271ce91824SDavid Xu if (msleep(aiop->aiothread, &aio_job_mtx, PRIBIO, "aiordy", 11281ce91824SDavid Xu aiod_lifetime)) { 1129c3869e4bSAlan Cox if (TAILQ_EMPTY(&aio_jobs)) { 1130b40ce416SJulian Elischer if ((aiop->aiothreadflags & AIOP_FREE) && 113184af4da6SJohn Dyson (num_aio_procs > target_aio_procs)) { 1132fd3bf775SJohn Dyson TAILQ_REMOVE(&aio_freeproc, aiop, list); 113384af4da6SJohn Dyson num_aio_procs--; 11341ce91824SDavid Xu mtx_unlock(&aio_job_mtx); 11351ce91824SDavid Xu uma_zfree(aiop_zone, aiop); 11361ce91824SDavid Xu free_unr(aiod_unr, id); 1137bfbbc4aaSJason Evans #ifdef DIAGNOSTIC 1138bfbbc4aaSJason Evans if (mycp->p_vmspace->vm_refcnt <= 1) { 1139bfbbc4aaSJason Evans printf("AIOD: bad vm refcnt for" 1140bfbbc4aaSJason Evans " exiting daemon: %d\n", 1141fd3bf775SJohn Dyson mycp->p_vmspace->vm_refcnt); 1142bfbbc4aaSJason Evans } 114311783b14SJohn Dyson #endif 11443745c395SJulian Elischer kproc_exit(0); 1145fd3bf775SJohn Dyson } 11462244ea07SJohn Dyson } 11472244ea07SJohn Dyson } 11482244ea07SJohn Dyson } 11491ce91824SDavid Xu mtx_unlock(&aio_job_mtx); 11501ce91824SDavid Xu panic("shouldn't be here\n"); 11511ce91824SDavid Xu } 11522244ea07SJohn Dyson 11532244ea07SJohn Dyson /* 1154bfbbc4aaSJason Evans * Create a new AIO daemon. This is mostly a kernel-thread fork routine. The 1155bfbbc4aaSJason Evans * AIO daemon modifies its environment itself. 11562244ea07SJohn Dyson */ 11572244ea07SJohn Dyson static int 11581ce91824SDavid Xu aio_newproc(int *start) 1159fd3bf775SJohn Dyson { 11602244ea07SJohn Dyson int error; 1161c9a970a7SAlan Cox struct proc *p; 11621ce91824SDavid Xu int id; 11632244ea07SJohn Dyson 11641ce91824SDavid Xu id = alloc_unr(aiod_unr); 11653745c395SJulian Elischer error = kproc_create(aio_daemon, (void *)(intptr_t)id, &p, 11661ce91824SDavid Xu RFNOWAIT, 0, "aiod%d", id); 11671ce91824SDavid Xu if (error == 0) { 1168fd3bf775SJohn Dyson /* 11691ce91824SDavid Xu * Wait until daemon is started. 1170fd3bf775SJohn Dyson */ 11711ce91824SDavid Xu sema_wait(&aio_newproc_sem); 11721ce91824SDavid Xu mtx_lock(&aio_job_mtx); 117384af4da6SJohn Dyson num_aio_procs++; 11741ce91824SDavid Xu if (start != NULL) 11757f34b521SDavid Xu (*start)--; 11761ce91824SDavid Xu mtx_unlock(&aio_job_mtx); 11771ce91824SDavid Xu } else { 11781ce91824SDavid Xu free_unr(aiod_unr, id); 11791ce91824SDavid Xu } 1180ac41f2efSAlfred Perlstein return (error); 11812244ea07SJohn Dyson } 11822244ea07SJohn Dyson 11832244ea07SJohn Dyson /* 118488ed460eSAlan Cox * Try the high-performance, low-overhead physio method for eligible 118588ed460eSAlan Cox * VCHR devices. This method doesn't use an aio helper thread, and 118688ed460eSAlan Cox * thus has very low overhead. 118788ed460eSAlan Cox * 1188a9bf5e37SDavid Xu * Assumes that the caller, aio_aqueue(), has incremented the file 118988ed460eSAlan Cox * structure's reference count, preventing its deallocation for the 119088ed460eSAlan Cox * duration of this call. 1191fd3bf775SJohn Dyson */ 119288ed460eSAlan Cox static int 1193bfbbc4aaSJason Evans aio_qphysio(struct proc *p, struct aiocblist *aiocbe) 1194fd3bf775SJohn Dyson { 1195fd3bf775SJohn Dyson struct aiocb *cb; 1196fd3bf775SJohn Dyson struct file *fp; 1197fd3bf775SJohn Dyson struct buf *bp; 1198fd3bf775SJohn Dyson struct vnode *vp; 1199fd3bf775SJohn Dyson struct kaioinfo *ki; 12001ce91824SDavid Xu struct aioliojob *lj; 12011ce91824SDavid Xu int error; 1202fd3bf775SJohn Dyson 120384af4da6SJohn Dyson cb = &aiocbe->uaiocb; 12049fbd7ccfSAlan Cox fp = aiocbe->fd_file; 1205fd3bf775SJohn Dyson 1206008626c3SPoul-Henning Kamp if (fp->f_type != DTYPE_VNODE) 1207008626c3SPoul-Henning Kamp return (-1); 1208fd3bf775SJohn Dyson 12093b6d9652SPoul-Henning Kamp vp = fp->f_vnode; 121011783b14SJohn Dyson 1211f582ac06SBrian Feldman /* 1212f582ac06SBrian Feldman * If its not a disk, we don't want to return a positive error. 1213f582ac06SBrian Feldman * It causes the aio code to not fall through to try the thread 1214f582ac06SBrian Feldman * way when you're talking to a regular file. 1215f582ac06SBrian Feldman */ 1216f582ac06SBrian Feldman if (!vn_isdisk(vp, &error)) { 1217f582ac06SBrian Feldman if (error == ENOTBLK) 1218f582ac06SBrian Feldman return (-1); 1219f582ac06SBrian Feldman else 1220ba4ad1fcSPoul-Henning Kamp return (error); 1221f582ac06SBrian Feldman } 1222fd3bf775SJohn Dyson 1223ad8de0f2SDavid Xu if (vp->v_bufobj.bo_bsize == 0) 1224ad8de0f2SDavid Xu return (-1); 1225ad8de0f2SDavid Xu 12265d9d81e7SPoul-Henning Kamp if (cb->aio_nbytes % vp->v_bufobj.bo_bsize) 1227008626c3SPoul-Henning Kamp return (-1); 1228fd3bf775SJohn Dyson 122969cd28daSDoug Ambrisko if (cb->aio_nbytes > vp->v_rdev->si_iosize_max) 123069cd28daSDoug Ambrisko return (-1); 123169cd28daSDoug Ambrisko 123213644654SAlan Cox if (cb->aio_nbytes > 123313644654SAlan Cox MAXPHYS - (((vm_offset_t) cb->aio_buf) & PAGE_MASK)) 1234008626c3SPoul-Henning Kamp return (-1); 1235fd3bf775SJohn Dyson 1236fd3bf775SJohn Dyson ki = p->p_aioinfo; 1237008626c3SPoul-Henning Kamp if (ki->kaio_buffer_count >= ki->kaio_ballowed_count) 1238008626c3SPoul-Henning Kamp return (-1); 1239fd3bf775SJohn Dyson 1240bfbbc4aaSJason Evans /* Create and build a buffer header for a transfer. */ 12411c7c3c6aSMatthew Dillon bp = (struct buf *)getpbuf(NULL); 124213644654SAlan Cox BUF_KERNPROC(bp); 1243fd3bf775SJohn Dyson 1244759ccccaSDavid Xu AIO_LOCK(ki); 12451ce91824SDavid Xu ki->kaio_count++; 12461ce91824SDavid Xu ki->kaio_buffer_count++; 12471ce91824SDavid Xu lj = aiocbe->lio; 12481ce91824SDavid Xu if (lj) 12491ce91824SDavid Xu lj->lioj_count++; 1250759ccccaSDavid Xu AIO_UNLOCK(ki); 12511ce91824SDavid Xu 1252fd3bf775SJohn Dyson /* 1253bfbbc4aaSJason Evans * Get a copy of the kva from the physical buffer. 1254fd3bf775SJohn Dyson */ 1255ef38cda1SAlan Cox error = 0; 1256fd3bf775SJohn Dyson 1257fd3bf775SJohn Dyson bp->b_bcount = cb->aio_nbytes; 1258fd3bf775SJohn Dyson bp->b_bufsize = cb->aio_nbytes; 1259fd3bf775SJohn Dyson bp->b_iodone = aio_physwakeup; 1260fd3bf775SJohn Dyson bp->b_saveaddr = bp->b_data; 126191369fc7SAlan Cox bp->b_data = (void *)(uintptr_t)cb->aio_buf; 1262a44ca4f0SHidetoshi Shimokawa bp->b_offset = cb->aio_offset; 1263a44ca4f0SHidetoshi Shimokawa bp->b_iooffset = cb->aio_offset; 1264fd3bf775SJohn Dyson bp->b_blkno = btodb(cb->aio_offset); 126506363906SAlan Cox bp->b_iocmd = cb->aio_lio_opcode == LIO_WRITE ? BIO_WRITE : BIO_READ; 1266fd3bf775SJohn Dyson 12672d5c7e45SMatthew Dillon /* 12682d5c7e45SMatthew Dillon * Bring buffer into kernel space. 12692d5c7e45SMatthew Dillon */ 12702d5c7e45SMatthew Dillon if (vmapbuf(bp) < 0) { 12712d5c7e45SMatthew Dillon error = EFAULT; 12722d5c7e45SMatthew Dillon goto doerror; 12732d5c7e45SMatthew Dillon } 1274fd3bf775SJohn Dyson 1275759ccccaSDavid Xu AIO_LOCK(ki); 1276fd3bf775SJohn Dyson aiocbe->bp = bp; 12778edbaf85SHidetoshi Shimokawa bp->b_caller1 = (void *)aiocbe; 127884af4da6SJohn Dyson TAILQ_INSERT_TAIL(&ki->kaio_bufqueue, aiocbe, plist); 12791ce91824SDavid Xu TAILQ_INSERT_TAIL(&ki->kaio_all, aiocbe, allist); 1280fd3bf775SJohn Dyson aiocbe->jobstate = JOBST_JOBQBUF; 128184af4da6SJohn Dyson cb->_aiocb_private.status = cb->aio_nbytes; 1282759ccccaSDavid Xu AIO_UNLOCK(ki); 12831ce91824SDavid Xu 12841ce91824SDavid Xu atomic_add_int(&num_queue_count, 1); 12851ce91824SDavid Xu atomic_add_int(&num_buf_aio, 1); 12861ce91824SDavid Xu 1287fd3bf775SJohn Dyson bp->b_error = 0; 1288fd3bf775SJohn Dyson 12891ce91824SDavid Xu TASK_INIT(&aiocbe->biotask, 0, biohelper, aiocbe); 1290bfbbc4aaSJason Evans 1291bfbbc4aaSJason Evans /* Perform transfer. */ 12926afb3b1cSPoul-Henning Kamp dev_strategy(vp->v_rdev, bp); 1293ac41f2efSAlfred Perlstein return (0); 1294fd3bf775SJohn Dyson 1295fd3bf775SJohn Dyson doerror: 1296759ccccaSDavid Xu AIO_LOCK(ki); 12971ce91824SDavid Xu ki->kaio_count--; 1298fd3bf775SJohn Dyson ki->kaio_buffer_count--; 1299bfbbc4aaSJason Evans if (lj) 13001ce91824SDavid Xu lj->lioj_count--; 130184af4da6SJohn Dyson aiocbe->bp = NULL; 1302759ccccaSDavid Xu AIO_UNLOCK(ki); 13031c7c3c6aSMatthew Dillon relpbuf(bp, NULL); 1304fd3bf775SJohn Dyson return (error); 1305fd3bf775SJohn Dyson } 1306fd3bf775SJohn Dyson 1307fd3bf775SJohn Dyson /* 1308bfbbc4aaSJason Evans * Wake up aio requests that may be serviceable now. 1309bfbbc4aaSJason Evans */ 131048dac059SAlan Cox static void 131121d56e9cSAlfred Perlstein aio_swake_cb(struct socket *so, struct sockbuf *sb) 1312bfbbc4aaSJason Evans { 1313bfbbc4aaSJason Evans struct aiocblist *cb, *cbn; 131499eee864SDavid Xu int opcode; 1315bfbbc4aaSJason Evans 13161aa4c324SDavid Xu if (sb == &so->so_snd) 1317bfbbc4aaSJason Evans opcode = LIO_WRITE; 13181aa4c324SDavid Xu else 1319bfbbc4aaSJason Evans opcode = LIO_READ; 1320bfbbc4aaSJason Evans 13211aa4c324SDavid Xu SOCKBUF_LOCK(sb); 13221aa4c324SDavid Xu sb->sb_flags &= ~SB_AIO; 13231aa4c324SDavid Xu mtx_lock(&aio_job_mtx); 13242a522eb9SJohn Baldwin TAILQ_FOREACH_SAFE(cb, &so->so_aiojobq, list, cbn) { 1325bfbbc4aaSJason Evans if (opcode == cb->uaiocb.aio_lio_opcode) { 13268c0d9af5SDavid Xu if (cb->jobstate != JOBST_JOBQSOCK) 13271ce91824SDavid Xu panic("invalid queue value"); 13281aa4c324SDavid Xu /* XXX 13291aa4c324SDavid Xu * We don't have actual sockets backend yet, 13301aa4c324SDavid Xu * so we simply move the requests to the generic 13311aa4c324SDavid Xu * file I/O backend. 13321ce91824SDavid Xu */ 13331aa4c324SDavid Xu TAILQ_REMOVE(&so->so_aiojobq, cb, list); 13341ce91824SDavid Xu TAILQ_INSERT_TAIL(&aio_jobs, cb, list); 133599eee864SDavid Xu aio_kick_nowait(cb->userproc); 1336bfbbc4aaSJason Evans } 1337bfbbc4aaSJason Evans } 13381aa4c324SDavid Xu mtx_unlock(&aio_job_mtx); 13391aa4c324SDavid Xu SOCKBUF_UNLOCK(sb); 1340bfbbc4aaSJason Evans } 1341bfbbc4aaSJason Evans 13423858a1f4SJohn Baldwin static int 13433858a1f4SJohn Baldwin convert_old_sigevent(struct osigevent *osig, struct sigevent *nsig) 13443858a1f4SJohn Baldwin { 13453858a1f4SJohn Baldwin 13463858a1f4SJohn Baldwin /* 13473858a1f4SJohn Baldwin * Only SIGEV_NONE, SIGEV_SIGNAL, and SIGEV_KEVENT are 13483858a1f4SJohn Baldwin * supported by AIO with the old sigevent structure. 13493858a1f4SJohn Baldwin */ 13503858a1f4SJohn Baldwin nsig->sigev_notify = osig->sigev_notify; 13513858a1f4SJohn Baldwin switch (nsig->sigev_notify) { 13523858a1f4SJohn Baldwin case SIGEV_NONE: 13533858a1f4SJohn Baldwin break; 13543858a1f4SJohn Baldwin case SIGEV_SIGNAL: 13553858a1f4SJohn Baldwin nsig->sigev_signo = osig->__sigev_u.__sigev_signo; 13563858a1f4SJohn Baldwin break; 13573858a1f4SJohn Baldwin case SIGEV_KEVENT: 13583858a1f4SJohn Baldwin nsig->sigev_notify_kqueue = 13593858a1f4SJohn Baldwin osig->__sigev_u.__sigev_notify_kqueue; 13603858a1f4SJohn Baldwin nsig->sigev_value.sival_ptr = osig->sigev_value.sival_ptr; 13613858a1f4SJohn Baldwin break; 13623858a1f4SJohn Baldwin default: 13633858a1f4SJohn Baldwin return (EINVAL); 13643858a1f4SJohn Baldwin } 13653858a1f4SJohn Baldwin return (0); 13663858a1f4SJohn Baldwin } 13673858a1f4SJohn Baldwin 13683858a1f4SJohn Baldwin static int 13693858a1f4SJohn Baldwin aiocb_copyin_old_sigevent(struct aiocb *ujob, struct aiocb *kjob) 13703858a1f4SJohn Baldwin { 13713858a1f4SJohn Baldwin struct oaiocb *ojob; 13723858a1f4SJohn Baldwin int error; 13733858a1f4SJohn Baldwin 13743858a1f4SJohn Baldwin bzero(kjob, sizeof(struct aiocb)); 13753858a1f4SJohn Baldwin error = copyin(ujob, kjob, sizeof(struct oaiocb)); 13763858a1f4SJohn Baldwin if (error) 13773858a1f4SJohn Baldwin return (error); 13783858a1f4SJohn Baldwin ojob = (struct oaiocb *)kjob; 13793858a1f4SJohn Baldwin return (convert_old_sigevent(&ojob->aio_sigevent, &kjob->aio_sigevent)); 13803858a1f4SJohn Baldwin } 13813858a1f4SJohn Baldwin 13823858a1f4SJohn Baldwin static int 13833858a1f4SJohn Baldwin aiocb_copyin(struct aiocb *ujob, struct aiocb *kjob) 13843858a1f4SJohn Baldwin { 13853858a1f4SJohn Baldwin 13863858a1f4SJohn Baldwin return (copyin(ujob, kjob, sizeof(struct aiocb))); 13873858a1f4SJohn Baldwin } 13883858a1f4SJohn Baldwin 13893858a1f4SJohn Baldwin static long 13903858a1f4SJohn Baldwin aiocb_fetch_status(struct aiocb *ujob) 13913858a1f4SJohn Baldwin { 13923858a1f4SJohn Baldwin 13933858a1f4SJohn Baldwin return (fuword(&ujob->_aiocb_private.status)); 13943858a1f4SJohn Baldwin } 13953858a1f4SJohn Baldwin 13963858a1f4SJohn Baldwin static long 13973858a1f4SJohn Baldwin aiocb_fetch_error(struct aiocb *ujob) 13983858a1f4SJohn Baldwin { 13993858a1f4SJohn Baldwin 14003858a1f4SJohn Baldwin return (fuword(&ujob->_aiocb_private.error)); 14013858a1f4SJohn Baldwin } 14023858a1f4SJohn Baldwin 14033858a1f4SJohn Baldwin static int 14043858a1f4SJohn Baldwin aiocb_store_status(struct aiocb *ujob, long status) 14053858a1f4SJohn Baldwin { 14063858a1f4SJohn Baldwin 14073858a1f4SJohn Baldwin return (suword(&ujob->_aiocb_private.status, status)); 14083858a1f4SJohn Baldwin } 14093858a1f4SJohn Baldwin 14103858a1f4SJohn Baldwin static int 14113858a1f4SJohn Baldwin aiocb_store_error(struct aiocb *ujob, long error) 14123858a1f4SJohn Baldwin { 14133858a1f4SJohn Baldwin 14143858a1f4SJohn Baldwin return (suword(&ujob->_aiocb_private.error, error)); 14153858a1f4SJohn Baldwin } 14163858a1f4SJohn Baldwin 14173858a1f4SJohn Baldwin static int 14183858a1f4SJohn Baldwin aiocb_store_kernelinfo(struct aiocb *ujob, long jobref) 14193858a1f4SJohn Baldwin { 14203858a1f4SJohn Baldwin 14213858a1f4SJohn Baldwin return (suword(&ujob->_aiocb_private.kernelinfo, jobref)); 14223858a1f4SJohn Baldwin } 14233858a1f4SJohn Baldwin 14243858a1f4SJohn Baldwin static int 14253858a1f4SJohn Baldwin aiocb_store_aiocb(struct aiocb **ujobp, struct aiocb *ujob) 14263858a1f4SJohn Baldwin { 14273858a1f4SJohn Baldwin 14283858a1f4SJohn Baldwin return (suword(ujobp, (long)ujob)); 14293858a1f4SJohn Baldwin } 14303858a1f4SJohn Baldwin 14313858a1f4SJohn Baldwin static struct aiocb_ops aiocb_ops = { 14323858a1f4SJohn Baldwin .copyin = aiocb_copyin, 14333858a1f4SJohn Baldwin .fetch_status = aiocb_fetch_status, 14343858a1f4SJohn Baldwin .fetch_error = aiocb_fetch_error, 14353858a1f4SJohn Baldwin .store_status = aiocb_store_status, 14363858a1f4SJohn Baldwin .store_error = aiocb_store_error, 14373858a1f4SJohn Baldwin .store_kernelinfo = aiocb_store_kernelinfo, 14383858a1f4SJohn Baldwin .store_aiocb = aiocb_store_aiocb, 14393858a1f4SJohn Baldwin }; 14403858a1f4SJohn Baldwin 14413858a1f4SJohn Baldwin static struct aiocb_ops aiocb_ops_osigevent = { 14423858a1f4SJohn Baldwin .copyin = aiocb_copyin_old_sigevent, 14433858a1f4SJohn Baldwin .fetch_status = aiocb_fetch_status, 14443858a1f4SJohn Baldwin .fetch_error = aiocb_fetch_error, 14453858a1f4SJohn Baldwin .store_status = aiocb_store_status, 14463858a1f4SJohn Baldwin .store_error = aiocb_store_error, 14473858a1f4SJohn Baldwin .store_kernelinfo = aiocb_store_kernelinfo, 14483858a1f4SJohn Baldwin .store_aiocb = aiocb_store_aiocb, 14493858a1f4SJohn Baldwin }; 14503858a1f4SJohn Baldwin 1451bfbbc4aaSJason Evans /* 1452bfbbc4aaSJason Evans * Queue a new AIO request. Choosing either the threaded or direct physio VCHR 1453bfbbc4aaSJason Evans * technique is done in this code. 14542244ea07SJohn Dyson */ 14556a1162d4SAlexander Leidinger int 1456a9bf5e37SDavid Xu aio_aqueue(struct thread *td, struct aiocb *job, struct aioliojob *lj, 14573858a1f4SJohn Baldwin int type, struct aiocb_ops *ops) 1458fd3bf775SJohn Dyson { 1459b40ce416SJulian Elischer struct proc *p = td->td_proc; 14602244ea07SJohn Dyson struct file *fp; 1461bfbbc4aaSJason Evans struct socket *so; 1462dbbccfe9SDavid Xu struct aiocblist *aiocbe, *cb; 14632244ea07SJohn Dyson struct kaioinfo *ki; 1464c6fa9f78SAlan Cox struct kevent kev; 1465576c004fSAlfred Perlstein struct sockbuf *sb; 14661ce91824SDavid Xu int opcode; 14671ce91824SDavid Xu int error; 14684db71d27SJohn-Mark Gurney int fd, kqfd; 14691ce91824SDavid Xu int jid; 14702244ea07SJohn Dyson 1471a9bf5e37SDavid Xu if (p->p_aioinfo == NULL) 1472a9bf5e37SDavid Xu aio_init_aioinfo(p); 1473a9bf5e37SDavid Xu 14741ce91824SDavid Xu ki = p->p_aioinfo; 14751ce91824SDavid Xu 14763858a1f4SJohn Baldwin ops->store_status(job, -1); 14773858a1f4SJohn Baldwin ops->store_error(job, 0); 14783858a1f4SJohn Baldwin ops->store_kernelinfo(job, -1); 1479a9bf5e37SDavid Xu 1480a9bf5e37SDavid Xu if (num_queue_count >= max_queue_count || 1481a9bf5e37SDavid Xu ki->kaio_count >= ki->kaio_qallowed_count) { 14823858a1f4SJohn Baldwin ops->store_error(job, EAGAIN); 1483a9bf5e37SDavid Xu return (EAGAIN); 1484a9bf5e37SDavid Xu } 1485a9bf5e37SDavid Xu 14861ce91824SDavid Xu aiocbe = uma_zalloc(aiocb_zone, M_WAITOK | M_ZERO); 1487fd3bf775SJohn Dyson aiocbe->inputcharge = 0; 1488fd3bf775SJohn Dyson aiocbe->outputcharge = 0; 1489759ccccaSDavid Xu knlist_init(&aiocbe->klist, AIO_MTX(ki), NULL, NULL, NULL); 1490fd3bf775SJohn Dyson 14913858a1f4SJohn Baldwin error = ops->copyin(job, &aiocbe->uaiocb); 14922244ea07SJohn Dyson if (error) { 14933858a1f4SJohn Baldwin ops->store_error(job, error); 1494c897b813SJeff Roberson uma_zfree(aiocb_zone, aiocbe); 1495ac41f2efSAlfred Perlstein return (error); 14962244ea07SJohn Dyson } 149768d71118SDavid Xu 149868d71118SDavid Xu if (aiocbe->uaiocb.aio_sigevent.sigev_notify != SIGEV_KEVENT && 149968d71118SDavid Xu aiocbe->uaiocb.aio_sigevent.sigev_notify != SIGEV_SIGNAL && 150068d71118SDavid Xu aiocbe->uaiocb.aio_sigevent.sigev_notify != SIGEV_THREAD_ID && 150168d71118SDavid Xu aiocbe->uaiocb.aio_sigevent.sigev_notify != SIGEV_NONE) { 15023858a1f4SJohn Baldwin ops->store_error(job, EINVAL); 150368d71118SDavid Xu uma_zfree(aiocb_zone, aiocbe); 150468d71118SDavid Xu return (EINVAL); 150568d71118SDavid Xu } 150668d71118SDavid Xu 15074c0fb2cfSDavid Xu if ((aiocbe->uaiocb.aio_sigevent.sigev_notify == SIGEV_SIGNAL || 15084c0fb2cfSDavid Xu aiocbe->uaiocb.aio_sigevent.sigev_notify == SIGEV_THREAD_ID) && 15092f3cf918SAlfred Perlstein !_SIG_VALID(aiocbe->uaiocb.aio_sigevent.sigev_signo)) { 1510c897b813SJeff Roberson uma_zfree(aiocb_zone, aiocbe); 1511ac41f2efSAlfred Perlstein return (EINVAL); 15122f3cf918SAlfred Perlstein } 15132244ea07SJohn Dyson 15144c0fb2cfSDavid Xu ksiginfo_init(&aiocbe->ksi); 15154c0fb2cfSDavid Xu 1516bfbbc4aaSJason Evans /* Save userspace address of the job info. */ 151711783b14SJohn Dyson aiocbe->uuaiocb = job; 151811783b14SJohn Dyson 1519bfbbc4aaSJason Evans /* Get the opcode. */ 1520bfbbc4aaSJason Evans if (type != LIO_NOP) 1521a624e84fSJohn Dyson aiocbe->uaiocb.aio_lio_opcode = type; 1522a624e84fSJohn Dyson opcode = aiocbe->uaiocb.aio_lio_opcode; 15232244ea07SJohn Dyson 15242a522eb9SJohn Baldwin /* Fetch the file object for the specified file descriptor. */ 15252244ea07SJohn Dyson fd = aiocbe->uaiocb.aio_fildes; 15262a522eb9SJohn Baldwin switch (opcode) { 15272a522eb9SJohn Baldwin case LIO_WRITE: 15282a522eb9SJohn Baldwin error = fget_write(td, fd, &fp); 15292a522eb9SJohn Baldwin break; 15302a522eb9SJohn Baldwin case LIO_READ: 15312a522eb9SJohn Baldwin error = fget_read(td, fd, &fp); 15322a522eb9SJohn Baldwin break; 15332a522eb9SJohn Baldwin default: 15342a522eb9SJohn Baldwin error = fget(td, fd, &fp); 15352a522eb9SJohn Baldwin } 15362a522eb9SJohn Baldwin if (error) { 1537c897b813SJeff Roberson uma_zfree(aiocb_zone, aiocbe); 15383858a1f4SJohn Baldwin ops->store_error(job, error); 1539af56abaaSJohn Baldwin return (error); 15402244ea07SJohn Dyson } 154199eee864SDavid Xu 154299eee864SDavid Xu if (opcode == LIO_SYNC && fp->f_vnode == NULL) { 154399eee864SDavid Xu error = EINVAL; 154499eee864SDavid Xu goto aqueue_fail; 154599eee864SDavid Xu } 15462244ea07SJohn Dyson 1547dbbccfe9SDavid Xu if (opcode != LIO_SYNC && aiocbe->uaiocb.aio_offset == -1LL) { 1548ae124fc4SAlan Cox error = EINVAL; 1549ae124fc4SAlan Cox goto aqueue_fail; 15502244ea07SJohn Dyson } 15511ce91824SDavid Xu 155299eee864SDavid Xu aiocbe->fd_file = fp; 15531ce91824SDavid Xu 155499eee864SDavid Xu mtx_lock(&aio_job_mtx); 155599eee864SDavid Xu jid = jobrefid++; 155699eee864SDavid Xu aiocbe->seqno = jobseqno++; 155799eee864SDavid Xu mtx_unlock(&aio_job_mtx); 15583858a1f4SJohn Baldwin error = ops->store_kernelinfo(job, jid); 15591ce91824SDavid Xu if (error) { 15601ce91824SDavid Xu error = EINVAL; 15611ce91824SDavid Xu goto aqueue_fail; 15621ce91824SDavid Xu } 15631ce91824SDavid Xu aiocbe->uaiocb._aiocb_private.kernelinfo = (void *)(intptr_t)jid; 15642244ea07SJohn Dyson 15652244ea07SJohn Dyson if (opcode == LIO_NOP) { 1566a5c0b1c0SAlan Cox fdrop(fp, td); 1567c897b813SJeff Roberson uma_zfree(aiocb_zone, aiocbe); 1568ac41f2efSAlfred Perlstein return (0); 15692244ea07SJohn Dyson } 157099eee864SDavid Xu if ((opcode != LIO_READ) && (opcode != LIO_WRITE) && 157199eee864SDavid Xu (opcode != LIO_SYNC)) { 1572ae124fc4SAlan Cox error = EINVAL; 1573ae124fc4SAlan Cox goto aqueue_fail; 15742244ea07SJohn Dyson } 15752244ea07SJohn Dyson 15764db71d27SJohn-Mark Gurney if (aiocbe->uaiocb.aio_sigevent.sigev_notify != SIGEV_KEVENT) 1577cb679c38SJonathan Lemon goto no_kqueue; 15784db71d27SJohn-Mark Gurney kqfd = aiocbe->uaiocb.aio_sigevent.sigev_notify_kqueue; 1579b46f1c55SAlan Cox kev.ident = (uintptr_t)aiocbe->uuaiocb; 1580cb679c38SJonathan Lemon kev.filter = EVFILT_AIO; 1581cb679c38SJonathan Lemon kev.flags = EV_ADD | EV_ENABLE | EV_FLAG1; 1582b46f1c55SAlan Cox kev.data = (intptr_t)aiocbe; 15831ce91824SDavid Xu kev.udata = aiocbe->uaiocb.aio_sigevent.sigev_value.sival_ptr; 15844db71d27SJohn-Mark Gurney error = kqfd_register(kqfd, &kev, td, 1); 1585cb679c38SJonathan Lemon aqueue_fail: 1586cb679c38SJonathan Lemon if (error) { 1587a5c0b1c0SAlan Cox fdrop(fp, td); 1588c897b813SJeff Roberson uma_zfree(aiocb_zone, aiocbe); 15893858a1f4SJohn Baldwin ops->store_error(job, error); 1590279d7226SMatthew Dillon goto done; 1591cb679c38SJonathan Lemon } 1592cb679c38SJonathan Lemon no_kqueue: 1593cb679c38SJonathan Lemon 15943858a1f4SJohn Baldwin ops->store_error(job, EINPROGRESS); 1595fd3bf775SJohn Dyson aiocbe->uaiocb._aiocb_private.error = EINPROGRESS; 15962244ea07SJohn Dyson aiocbe->userproc = p; 1597f8f750c5SRobert Watson aiocbe->cred = crhold(td->td_ucred); 15982244ea07SJohn Dyson aiocbe->jobflags = 0; 159984af4da6SJohn Dyson aiocbe->lio = lj; 16002244ea07SJohn Dyson 160199eee864SDavid Xu if (opcode == LIO_SYNC) 160299eee864SDavid Xu goto queueit; 160399eee864SDavid Xu 1604bfbbc4aaSJason Evans if (fp->f_type == DTYPE_SOCKET) { 1605bfbbc4aaSJason Evans /* 1606bfbbc4aaSJason Evans * Alternate queueing for socket ops: Reach down into the 1607bfbbc4aaSJason Evans * descriptor to get the socket data. Then check to see if the 1608bfbbc4aaSJason Evans * socket is ready to be read or written (based on the requested 1609bfbbc4aaSJason Evans * operation). 1610bfbbc4aaSJason Evans * 1611bfbbc4aaSJason Evans * If it is not ready for io, then queue the aiocbe on the 1612bfbbc4aaSJason Evans * socket, and set the flags so we get a call when sbnotify() 1613bfbbc4aaSJason Evans * happens. 1614576c004fSAlfred Perlstein * 1615576c004fSAlfred Perlstein * Note if opcode is neither LIO_WRITE nor LIO_READ we lock 1616576c004fSAlfred Perlstein * and unlock the snd sockbuf for no reason. 1617bfbbc4aaSJason Evans */ 161848e3128bSMatthew Dillon so = fp->f_data; 1619576c004fSAlfred Perlstein sb = (opcode == LIO_READ) ? &so->so_rcv : &so->so_snd; 1620576c004fSAlfred Perlstein SOCKBUF_LOCK(sb); 1621bfbbc4aaSJason Evans if (((opcode == LIO_READ) && (!soreadable(so))) || ((opcode == 1622bfbbc4aaSJason Evans LIO_WRITE) && (!sowriteable(so)))) { 1623576c004fSAlfred Perlstein sb->sb_flags |= SB_AIO; 16241aa4c324SDavid Xu 16251aa4c324SDavid Xu mtx_lock(&aio_job_mtx); 16261aa4c324SDavid Xu TAILQ_INSERT_TAIL(&so->so_aiojobq, aiocbe, list); 16271aa4c324SDavid Xu mtx_unlock(&aio_job_mtx); 16281aa4c324SDavid Xu 1629759ccccaSDavid Xu AIO_LOCK(ki); 16301ce91824SDavid Xu TAILQ_INSERT_TAIL(&ki->kaio_all, aiocbe, allist); 16311aa4c324SDavid Xu TAILQ_INSERT_TAIL(&ki->kaio_jobqueue, aiocbe, plist); 16321ce91824SDavid Xu aiocbe->jobstate = JOBST_JOBQSOCK; 16331ce91824SDavid Xu ki->kaio_count++; 16341ce91824SDavid Xu if (lj) 16351ce91824SDavid Xu lj->lioj_count++; 1636759ccccaSDavid Xu AIO_UNLOCK(ki); 1637576c004fSAlfred Perlstein SOCKBUF_UNLOCK(sb); 16381ce91824SDavid Xu atomic_add_int(&num_queue_count, 1); 1639279d7226SMatthew Dillon error = 0; 1640279d7226SMatthew Dillon goto done; 1641bfbbc4aaSJason Evans } 1642576c004fSAlfred Perlstein SOCKBUF_UNLOCK(sb); 1643bfbbc4aaSJason Evans } 1644bfbbc4aaSJason Evans 1645bfbbc4aaSJason Evans if ((error = aio_qphysio(p, aiocbe)) == 0) 1646279d7226SMatthew Dillon goto done; 16471ce91824SDavid Xu #if 0 1648279d7226SMatthew Dillon if (error > 0) { 1649fd3bf775SJohn Dyson aiocbe->uaiocb._aiocb_private.error = error; 16503858a1f4SJohn Baldwin ops->store_error(job, error); 1651279d7226SMatthew Dillon goto done; 1652fd3bf775SJohn Dyson } 16531ce91824SDavid Xu #endif 165499eee864SDavid Xu queueit: 1655bfbbc4aaSJason Evans /* No buffer for daemon I/O. */ 165684af4da6SJohn Dyson aiocbe->bp = NULL; 165799eee864SDavid Xu atomic_add_int(&num_queue_count, 1); 165884af4da6SJohn Dyson 1659759ccccaSDavid Xu AIO_LOCK(ki); 16601ce91824SDavid Xu ki->kaio_count++; 1661bfbbc4aaSJason Evans if (lj) 16621ce91824SDavid Xu lj->lioj_count++; 1663fd3bf775SJohn Dyson TAILQ_INSERT_TAIL(&ki->kaio_jobqueue, aiocbe, plist); 16641ce91824SDavid Xu TAILQ_INSERT_TAIL(&ki->kaio_all, aiocbe, allist); 166599eee864SDavid Xu if (opcode == LIO_SYNC) { 1666dbbccfe9SDavid Xu TAILQ_FOREACH(cb, &ki->kaio_jobqueue, plist) { 1667dbbccfe9SDavid Xu if (cb->fd_file == aiocbe->fd_file && 1668dbbccfe9SDavid Xu cb->uaiocb.aio_lio_opcode != LIO_SYNC && 1669dbbccfe9SDavid Xu cb->seqno < aiocbe->seqno) { 1670dbbccfe9SDavid Xu cb->jobflags |= AIOCBLIST_CHECKSYNC; 1671dbbccfe9SDavid Xu aiocbe->pending++; 1672dbbccfe9SDavid Xu } 1673dbbccfe9SDavid Xu } 1674dbbccfe9SDavid Xu TAILQ_FOREACH(cb, &ki->kaio_bufqueue, plist) { 1675dbbccfe9SDavid Xu if (cb->fd_file == aiocbe->fd_file && 1676dbbccfe9SDavid Xu cb->uaiocb.aio_lio_opcode != LIO_SYNC && 1677dbbccfe9SDavid Xu cb->seqno < aiocbe->seqno) { 1678dbbccfe9SDavid Xu cb->jobflags |= AIOCBLIST_CHECKSYNC; 1679dbbccfe9SDavid Xu aiocbe->pending++; 1680dbbccfe9SDavid Xu } 1681dbbccfe9SDavid Xu } 1682dbbccfe9SDavid Xu if (aiocbe->pending != 0) { 168399eee864SDavid Xu TAILQ_INSERT_TAIL(&ki->kaio_syncqueue, aiocbe, list); 168499eee864SDavid Xu aiocbe->jobstate = JOBST_JOBQSYNC; 1685759ccccaSDavid Xu AIO_UNLOCK(ki); 1686dbbccfe9SDavid Xu goto done; 1687dbbccfe9SDavid Xu } 1688dbbccfe9SDavid Xu } 16891ce91824SDavid Xu mtx_lock(&aio_job_mtx); 16901ce91824SDavid Xu TAILQ_INSERT_TAIL(&aio_jobs, aiocbe, list); 16911ce91824SDavid Xu aiocbe->jobstate = JOBST_JOBQGLOBAL; 169299eee864SDavid Xu aio_kick_nowait(p); 169399eee864SDavid Xu mtx_unlock(&aio_job_mtx); 1694759ccccaSDavid Xu AIO_UNLOCK(ki); 16951ce91824SDavid Xu error = 0; 169699eee864SDavid Xu done: 169799eee864SDavid Xu return (error); 169899eee864SDavid Xu } 169999eee864SDavid Xu 170099eee864SDavid Xu static void 170199eee864SDavid Xu aio_kick_nowait(struct proc *userp) 170299eee864SDavid Xu { 170399eee864SDavid Xu struct kaioinfo *ki = userp->p_aioinfo; 170499eee864SDavid Xu struct aiothreadlist *aiop; 170599eee864SDavid Xu 170699eee864SDavid Xu mtx_assert(&aio_job_mtx, MA_OWNED); 170799eee864SDavid Xu if ((aiop = TAILQ_FIRST(&aio_freeproc)) != NULL) { 170899eee864SDavid Xu TAILQ_REMOVE(&aio_freeproc, aiop, list); 170999eee864SDavid Xu aiop->aiothreadflags &= ~AIOP_FREE; 171099eee864SDavid Xu wakeup(aiop->aiothread); 1711dbbccfe9SDavid Xu } else if (((num_aio_resv_start + num_aio_procs) < max_aio_procs) && 1712dbbccfe9SDavid Xu ((ki->kaio_active_count + num_aio_resv_start) < 1713dbbccfe9SDavid Xu ki->kaio_maxactive_count)) { 171499eee864SDavid Xu taskqueue_enqueue(taskqueue_aiod_bio, &ki->kaio_task); 171599eee864SDavid Xu } 171699eee864SDavid Xu } 171799eee864SDavid Xu 1718dbbccfe9SDavid Xu static int 171999eee864SDavid Xu aio_kick(struct proc *userp) 172099eee864SDavid Xu { 172199eee864SDavid Xu struct kaioinfo *ki = userp->p_aioinfo; 172299eee864SDavid Xu struct aiothreadlist *aiop; 1723dbbccfe9SDavid Xu int error, ret = 0; 172499eee864SDavid Xu 172599eee864SDavid Xu mtx_assert(&aio_job_mtx, MA_OWNED); 172699eee864SDavid Xu retryproc: 1727d254af07SMatthew Dillon if ((aiop = TAILQ_FIRST(&aio_freeproc)) != NULL) { 17282244ea07SJohn Dyson TAILQ_REMOVE(&aio_freeproc, aiop, list); 1729b40ce416SJulian Elischer aiop->aiothreadflags &= ~AIOP_FREE; 1730b40ce416SJulian Elischer wakeup(aiop->aiothread); 1731fd3bf775SJohn Dyson } else if (((num_aio_resv_start + num_aio_procs) < max_aio_procs) && 1732fd3bf775SJohn Dyson ((ki->kaio_active_count + num_aio_resv_start) < 1733fd3bf775SJohn Dyson ki->kaio_maxactive_count)) { 1734fd3bf775SJohn Dyson num_aio_resv_start++; 17351ce91824SDavid Xu mtx_unlock(&aio_job_mtx); 17361ce91824SDavid Xu error = aio_newproc(&num_aio_resv_start); 17371ce91824SDavid Xu mtx_lock(&aio_job_mtx); 17381ce91824SDavid Xu if (error) { 173984af4da6SJohn Dyson num_aio_resv_start--; 17402244ea07SJohn Dyson goto retryproc; 1741fd3bf775SJohn Dyson } 1742dbbccfe9SDavid Xu } else { 1743dbbccfe9SDavid Xu ret = -1; 17441ce91824SDavid Xu } 1745dbbccfe9SDavid Xu return (ret); 174699eee864SDavid Xu } 17471ce91824SDavid Xu 174899eee864SDavid Xu static void 174999eee864SDavid Xu aio_kick_helper(void *context, int pending) 175099eee864SDavid Xu { 175199eee864SDavid Xu struct proc *userp = context; 175299eee864SDavid Xu 175399eee864SDavid Xu mtx_lock(&aio_job_mtx); 1754dbbccfe9SDavid Xu while (--pending >= 0) { 1755dbbccfe9SDavid Xu if (aio_kick(userp)) 1756dbbccfe9SDavid Xu break; 1757dbbccfe9SDavid Xu } 175899eee864SDavid Xu mtx_unlock(&aio_job_mtx); 17592244ea07SJohn Dyson } 17602244ea07SJohn Dyson 1761fd3bf775SJohn Dyson /* 1762bfbbc4aaSJason Evans * Support the aio_return system call, as a side-effect, kernel resources are 1763bfbbc4aaSJason Evans * released. 17642244ea07SJohn Dyson */ 17653858a1f4SJohn Baldwin static int 17663858a1f4SJohn Baldwin kern_aio_return(struct thread *td, struct aiocb *uaiocb, struct aiocb_ops *ops) 1767fd3bf775SJohn Dyson { 1768b40ce416SJulian Elischer struct proc *p = td->td_proc; 17691ce91824SDavid Xu struct aiocblist *cb; 17702244ea07SJohn Dyson struct kaioinfo *ki; 17711ce91824SDavid Xu int status, error; 17722244ea07SJohn Dyson 1773c0bf5caaSAlan Cox ki = p->p_aioinfo; 1774c0bf5caaSAlan Cox if (ki == NULL) 1775ac41f2efSAlfred Perlstein return (EINVAL); 1776759ccccaSDavid Xu AIO_LOCK(ki); 17771ce91824SDavid Xu TAILQ_FOREACH(cb, &ki->kaio_done, plist) { 17781ce91824SDavid Xu if (cb->uuaiocb == uaiocb) 1779c0bf5caaSAlan Cox break; 1780c0bf5caaSAlan Cox } 1781c0bf5caaSAlan Cox if (cb != NULL) { 17821ce91824SDavid Xu MPASS(cb->jobstate == JOBST_JOBFINISHED); 17831ce91824SDavid Xu status = cb->uaiocb._aiocb_private.status; 17841ce91824SDavid Xu error = cb->uaiocb._aiocb_private.error; 17851ce91824SDavid Xu td->td_retval[0] = status; 178669cd28daSDoug Ambrisko if (cb->uaiocb.aio_lio_opcode == LIO_WRITE) { 17871c4bcd05SJeff Roberson td->td_ru.ru_oublock += cb->outputcharge; 178869cd28daSDoug Ambrisko cb->outputcharge = 0; 178969cd28daSDoug Ambrisko } else if (cb->uaiocb.aio_lio_opcode == LIO_READ) { 17901c4bcd05SJeff Roberson td->td_ru.ru_inblock += cb->inputcharge; 179169cd28daSDoug Ambrisko cb->inputcharge = 0; 179269cd28daSDoug Ambrisko } 179384af4da6SJohn Dyson aio_free_entry(cb); 1794759ccccaSDavid Xu AIO_UNLOCK(ki); 17953858a1f4SJohn Baldwin ops->store_error(uaiocb, error); 17963858a1f4SJohn Baldwin ops->store_status(uaiocb, status); 179755a122bfSDavid Xu } else { 17981ce91824SDavid Xu error = EINVAL; 1799759ccccaSDavid Xu AIO_UNLOCK(ki); 180055a122bfSDavid Xu } 18011ce91824SDavid Xu return (error); 18022244ea07SJohn Dyson } 18032244ea07SJohn Dyson 18043858a1f4SJohn Baldwin int 18053858a1f4SJohn Baldwin aio_return(struct thread *td, struct aio_return_args *uap) 18063858a1f4SJohn Baldwin { 18073858a1f4SJohn Baldwin 18083858a1f4SJohn Baldwin return (kern_aio_return(td, uap->aiocbp, &aiocb_ops)); 18093858a1f4SJohn Baldwin } 18103858a1f4SJohn Baldwin 18112244ea07SJohn Dyson /* 1812bfbbc4aaSJason Evans * Allow a process to wakeup when any of the I/O requests are completed. 18132244ea07SJohn Dyson */ 18143858a1f4SJohn Baldwin static int 18153858a1f4SJohn Baldwin kern_aio_suspend(struct thread *td, int njoblist, struct aiocb **ujoblist, 18163858a1f4SJohn Baldwin struct timespec *ts) 1817fd3bf775SJohn Dyson { 1818b40ce416SJulian Elischer struct proc *p = td->td_proc; 18194a11ca4eSPoul-Henning Kamp struct timeval atv; 18202244ea07SJohn Dyson struct kaioinfo *ki; 18211ce91824SDavid Xu struct aiocblist *cb, *cbfirst; 18223858a1f4SJohn Baldwin int error, i, timo; 18232244ea07SJohn Dyson 18242244ea07SJohn Dyson timo = 0; 18253858a1f4SJohn Baldwin if (ts) { 18263858a1f4SJohn Baldwin if (ts->tv_nsec < 0 || ts->tv_nsec >= 1000000000) 18272244ea07SJohn Dyson return (EINVAL); 18282244ea07SJohn Dyson 18293858a1f4SJohn Baldwin TIMESPEC_TO_TIMEVAL(&atv, ts); 18302244ea07SJohn Dyson if (itimerfix(&atv)) 18312244ea07SJohn Dyson return (EINVAL); 1832227ee8a1SPoul-Henning Kamp timo = tvtohz(&atv); 18332244ea07SJohn Dyson } 18342244ea07SJohn Dyson 18352244ea07SJohn Dyson ki = p->p_aioinfo; 18362244ea07SJohn Dyson if (ki == NULL) 1837ac41f2efSAlfred Perlstein return (EAGAIN); 18382244ea07SJohn Dyson 18393858a1f4SJohn Baldwin if (njoblist == 0) 1840ac41f2efSAlfred Perlstein return (0); 18412244ea07SJohn Dyson 1842759ccccaSDavid Xu AIO_LOCK(ki); 18431ce91824SDavid Xu for (;;) { 18441ce91824SDavid Xu cbfirst = NULL; 18451ce91824SDavid Xu error = 0; 18461ce91824SDavid Xu TAILQ_FOREACH(cb, &ki->kaio_all, allist) { 184784af4da6SJohn Dyson for (i = 0; i < njoblist; i++) { 18481ce91824SDavid Xu if (cb->uuaiocb == ujoblist[i]) { 18491ce91824SDavid Xu if (cbfirst == NULL) 18501ce91824SDavid Xu cbfirst = cb; 18511ce91824SDavid Xu if (cb->jobstate == JOBST_JOBFINISHED) 18521ce91824SDavid Xu goto RETURN; 185384af4da6SJohn Dyson } 185484af4da6SJohn Dyson } 185584af4da6SJohn Dyson } 18561ce91824SDavid Xu /* All tasks were finished. */ 18571ce91824SDavid Xu if (cbfirst == NULL) 18581ce91824SDavid Xu break; 18592244ea07SJohn Dyson 1860fd3bf775SJohn Dyson ki->kaio_flags |= KAIO_WAKEUP; 1861759ccccaSDavid Xu error = msleep(&p->p_aioinfo, AIO_MTX(ki), PRIBIO | PCATCH, 18621ce91824SDavid Xu "aiospn", timo); 18631ce91824SDavid Xu if (error == ERESTART) 18641ce91824SDavid Xu error = EINTR; 18651ce91824SDavid Xu if (error) 18661ce91824SDavid Xu break; 18672244ea07SJohn Dyson } 18681ce91824SDavid Xu RETURN: 1869759ccccaSDavid Xu AIO_UNLOCK(ki); 18703858a1f4SJohn Baldwin return (error); 18713858a1f4SJohn Baldwin } 18723858a1f4SJohn Baldwin 18733858a1f4SJohn Baldwin int 18743858a1f4SJohn Baldwin aio_suspend(struct thread *td, struct aio_suspend_args *uap) 18753858a1f4SJohn Baldwin { 18763858a1f4SJohn Baldwin struct timespec ts, *tsp; 18773858a1f4SJohn Baldwin struct aiocb **ujoblist; 18783858a1f4SJohn Baldwin int error; 18793858a1f4SJohn Baldwin 18803858a1f4SJohn Baldwin if (uap->nent < 0 || uap->nent > AIO_LISTIO_MAX) 18813858a1f4SJohn Baldwin return (EINVAL); 18823858a1f4SJohn Baldwin 18833858a1f4SJohn Baldwin if (uap->timeout) { 18843858a1f4SJohn Baldwin /* Get timespec struct. */ 18853858a1f4SJohn Baldwin if ((error = copyin(uap->timeout, &ts, sizeof(ts))) != 0) 18863858a1f4SJohn Baldwin return (error); 18873858a1f4SJohn Baldwin tsp = &ts; 18883858a1f4SJohn Baldwin } else 18893858a1f4SJohn Baldwin tsp = NULL; 18903858a1f4SJohn Baldwin 18913858a1f4SJohn Baldwin ujoblist = uma_zalloc(aiol_zone, M_WAITOK); 18923858a1f4SJohn Baldwin error = copyin(uap->aiocbp, ujoblist, uap->nent * sizeof(ujoblist[0])); 18933858a1f4SJohn Baldwin if (error == 0) 18943858a1f4SJohn Baldwin error = kern_aio_suspend(td, uap->nent, ujoblist, tsp); 18951ce91824SDavid Xu uma_zfree(aiol_zone, ujoblist); 18961ce91824SDavid Xu return (error); 18972244ea07SJohn Dyson } 1898ee877a35SJohn Dyson 1899ee877a35SJohn Dyson /* 1900dd85920aSJason Evans * aio_cancel cancels any non-physio aio operations not currently in 1901dd85920aSJason Evans * progress. 1902ee877a35SJohn Dyson */ 1903ee877a35SJohn Dyson int 1904b40ce416SJulian Elischer aio_cancel(struct thread *td, struct aio_cancel_args *uap) 1905fd3bf775SJohn Dyson { 1906b40ce416SJulian Elischer struct proc *p = td->td_proc; 1907dd85920aSJason Evans struct kaioinfo *ki; 1908dd85920aSJason Evans struct aiocblist *cbe, *cbn; 1909dd85920aSJason Evans struct file *fp; 1910dd85920aSJason Evans struct socket *so; 19111ce91824SDavid Xu int error; 19121aa4c324SDavid Xu int remove; 1913dd85920aSJason Evans int cancelled = 0; 1914dd85920aSJason Evans int notcancelled = 0; 1915dd85920aSJason Evans struct vnode *vp; 1916dd85920aSJason Evans 19172a522eb9SJohn Baldwin /* Lookup file object. */ 19181ce91824SDavid Xu error = fget(td, uap->fd, &fp); 19192a522eb9SJohn Baldwin if (error) 19202a522eb9SJohn Baldwin return (error); 1921dd85920aSJason Evans 19221ce91824SDavid Xu ki = p->p_aioinfo; 19231ce91824SDavid Xu if (ki == NULL) 19241ce91824SDavid Xu goto done; 19251ce91824SDavid Xu 1926dd85920aSJason Evans if (fp->f_type == DTYPE_VNODE) { 19273b6d9652SPoul-Henning Kamp vp = fp->f_vnode; 1928dd85920aSJason Evans if (vn_isdisk(vp, &error)) { 19292a522eb9SJohn Baldwin fdrop(fp, td); 1930b40ce416SJulian Elischer td->td_retval[0] = AIO_NOTCANCELED; 1931ac41f2efSAlfred Perlstein return (0); 1932dd85920aSJason Evans } 1933dd85920aSJason Evans } 1934dd85920aSJason Evans 1935759ccccaSDavid Xu AIO_LOCK(ki); 19362a522eb9SJohn Baldwin TAILQ_FOREACH_SAFE(cbe, &ki->kaio_jobqueue, plist, cbn) { 1937dd85920aSJason Evans if ((uap->fd == cbe->uaiocb.aio_fildes) && 1938dd85920aSJason Evans ((uap->aiocbp == NULL) || 1939dd85920aSJason Evans (uap->aiocbp == cbe->uuaiocb))) { 19401aa4c324SDavid Xu remove = 0; 19411aa4c324SDavid Xu 19421ce91824SDavid Xu mtx_lock(&aio_job_mtx); 1943dd85920aSJason Evans if (cbe->jobstate == JOBST_JOBQGLOBAL) { 1944dd85920aSJason Evans TAILQ_REMOVE(&aio_jobs, cbe, list); 19451aa4c324SDavid Xu remove = 1; 19461aa4c324SDavid Xu } else if (cbe->jobstate == JOBST_JOBQSOCK) { 19471aa4c324SDavid Xu MPASS(fp->f_type == DTYPE_SOCKET); 19481aa4c324SDavid Xu so = fp->f_data; 19491aa4c324SDavid Xu TAILQ_REMOVE(&so->so_aiojobq, cbe, list); 19501aa4c324SDavid Xu remove = 1; 195199eee864SDavid Xu } else if (cbe->jobstate == JOBST_JOBQSYNC) { 195299eee864SDavid Xu TAILQ_REMOVE(&ki->kaio_syncqueue, cbe, list); 195399eee864SDavid Xu remove = 1; 19541aa4c324SDavid Xu } 19551ce91824SDavid Xu mtx_unlock(&aio_job_mtx); 19561aa4c324SDavid Xu 19571aa4c324SDavid Xu if (remove) { 19581ce91824SDavid Xu TAILQ_REMOVE(&ki->kaio_jobqueue, cbe, plist); 1959dd85920aSJason Evans cbe->uaiocb._aiocb_private.status = -1; 1960dd85920aSJason Evans cbe->uaiocb._aiocb_private.error = ECANCELED; 19611ce91824SDavid Xu aio_bio_done_notify(p, cbe, DONE_QUEUE); 19621ce91824SDavid Xu cancelled++; 1963dd85920aSJason Evans } else { 1964dd85920aSJason Evans notcancelled++; 1965dd85920aSJason Evans } 19661aa4c324SDavid Xu if (uap->aiocbp != NULL) 19671aa4c324SDavid Xu break; 1968dd85920aSJason Evans } 1969dd85920aSJason Evans } 1970759ccccaSDavid Xu AIO_UNLOCK(ki); 19711ce91824SDavid Xu 1972ad49abc0SAlan Cox done: 19732a522eb9SJohn Baldwin fdrop(fp, td); 19741aa4c324SDavid Xu 19751aa4c324SDavid Xu if (uap->aiocbp != NULL) { 1976dd85920aSJason Evans if (cancelled) { 1977b40ce416SJulian Elischer td->td_retval[0] = AIO_CANCELED; 1978ac41f2efSAlfred Perlstein return (0); 1979dd85920aSJason Evans } 19801aa4c324SDavid Xu } 19811aa4c324SDavid Xu 19821aa4c324SDavid Xu if (notcancelled) { 19831aa4c324SDavid Xu td->td_retval[0] = AIO_NOTCANCELED; 19841aa4c324SDavid Xu return (0); 19851aa4c324SDavid Xu } 19861aa4c324SDavid Xu 19871aa4c324SDavid Xu if (cancelled) { 19881aa4c324SDavid Xu td->td_retval[0] = AIO_CANCELED; 19891aa4c324SDavid Xu return (0); 19901aa4c324SDavid Xu } 19911aa4c324SDavid Xu 1992b40ce416SJulian Elischer td->td_retval[0] = AIO_ALLDONE; 1993dd85920aSJason Evans 1994ac41f2efSAlfred Perlstein return (0); 1995ee877a35SJohn Dyson } 1996ee877a35SJohn Dyson 1997ee877a35SJohn Dyson /* 1998873fbcd7SRobert Watson * aio_error is implemented in the kernel level for compatibility purposes 1999873fbcd7SRobert Watson * only. For a user mode async implementation, it would be best to do it in 2000873fbcd7SRobert Watson * a userland subroutine. 2001ee877a35SJohn Dyson */ 20023858a1f4SJohn Baldwin static int 20033858a1f4SJohn Baldwin kern_aio_error(struct thread *td, struct aiocb *aiocbp, struct aiocb_ops *ops) 2004fd3bf775SJohn Dyson { 2005b40ce416SJulian Elischer struct proc *p = td->td_proc; 20062244ea07SJohn Dyson struct aiocblist *cb; 20072244ea07SJohn Dyson struct kaioinfo *ki; 20081ce91824SDavid Xu int status; 2009ee877a35SJohn Dyson 20102244ea07SJohn Dyson ki = p->p_aioinfo; 20111ce91824SDavid Xu if (ki == NULL) { 20121ce91824SDavid Xu td->td_retval[0] = EINVAL; 20131ce91824SDavid Xu return (0); 20141ce91824SDavid Xu } 2015ee877a35SJohn Dyson 2016759ccccaSDavid Xu AIO_LOCK(ki); 20171ce91824SDavid Xu TAILQ_FOREACH(cb, &ki->kaio_all, allist) { 20183858a1f4SJohn Baldwin if (cb->uuaiocb == aiocbp) { 20191ce91824SDavid Xu if (cb->jobstate == JOBST_JOBFINISHED) 20201ce91824SDavid Xu td->td_retval[0] = 20211ce91824SDavid Xu cb->uaiocb._aiocb_private.error; 20221ce91824SDavid Xu else 2023b40ce416SJulian Elischer td->td_retval[0] = EINPROGRESS; 2024759ccccaSDavid Xu AIO_UNLOCK(ki); 2025ac41f2efSAlfred Perlstein return (0); 20262244ea07SJohn Dyson } 20272244ea07SJohn Dyson } 2028759ccccaSDavid Xu AIO_UNLOCK(ki); 202984af4da6SJohn Dyson 20302244ea07SJohn Dyson /* 2031a9bf5e37SDavid Xu * Hack for failure of aio_aqueue. 20322244ea07SJohn Dyson */ 20333858a1f4SJohn Baldwin status = ops->fetch_status(aiocbp); 20341ce91824SDavid Xu if (status == -1) { 20353858a1f4SJohn Baldwin td->td_retval[0] = ops->fetch_error(aiocbp); 20361ce91824SDavid Xu return (0); 20371ce91824SDavid Xu } 20381ce91824SDavid Xu 20391ce91824SDavid Xu td->td_retval[0] = EINVAL; 20401ce91824SDavid Xu return (0); 2041ee877a35SJohn Dyson } 2042ee877a35SJohn Dyson 20433858a1f4SJohn Baldwin int 20443858a1f4SJohn Baldwin aio_error(struct thread *td, struct aio_error_args *uap) 20453858a1f4SJohn Baldwin { 20463858a1f4SJohn Baldwin 20473858a1f4SJohn Baldwin return (kern_aio_error(td, uap->aiocbp, &aiocb_ops)); 20483858a1f4SJohn Baldwin } 20493858a1f4SJohn Baldwin 2050eb8e6d52SEivind Eklund /* syscall - asynchronous read from a file (REALTIME) */ 2051ee877a35SJohn Dyson int 20520972628aSDavid Xu oaio_read(struct thread *td, struct oaio_read_args *uap) 20530972628aSDavid Xu { 20540972628aSDavid Xu 20553858a1f4SJohn Baldwin return (aio_aqueue(td, (struct aiocb *)uap->aiocbp, NULL, LIO_READ, 20563858a1f4SJohn Baldwin &aiocb_ops_osigevent)); 20570972628aSDavid Xu } 20580972628aSDavid Xu 20590972628aSDavid Xu int 2060b40ce416SJulian Elischer aio_read(struct thread *td, struct aio_read_args *uap) 2061fd3bf775SJohn Dyson { 206221d56e9cSAlfred Perlstein 20633858a1f4SJohn Baldwin return (aio_aqueue(td, uap->aiocbp, NULL, LIO_READ, &aiocb_ops)); 2064ee877a35SJohn Dyson } 2065ee877a35SJohn Dyson 2066eb8e6d52SEivind Eklund /* syscall - asynchronous write to a file (REALTIME) */ 2067ee877a35SJohn Dyson int 20680972628aSDavid Xu oaio_write(struct thread *td, struct oaio_write_args *uap) 20690972628aSDavid Xu { 20700972628aSDavid Xu 20713858a1f4SJohn Baldwin return (aio_aqueue(td, (struct aiocb *)uap->aiocbp, NULL, LIO_WRITE, 20723858a1f4SJohn Baldwin &aiocb_ops_osigevent)); 20730972628aSDavid Xu } 20740972628aSDavid Xu 20750972628aSDavid Xu int 2076b40ce416SJulian Elischer aio_write(struct thread *td, struct aio_write_args *uap) 2077fd3bf775SJohn Dyson { 207821d56e9cSAlfred Perlstein 20793858a1f4SJohn Baldwin return (aio_aqueue(td, uap->aiocbp, NULL, LIO_WRITE, &aiocb_ops)); 20800972628aSDavid Xu } 20810972628aSDavid Xu 20820972628aSDavid Xu static int 20833858a1f4SJohn Baldwin kern_lio_listio(struct thread *td, int mode, struct aiocb * const *uacb_list, 20843858a1f4SJohn Baldwin struct aiocb **acb_list, int nent, struct sigevent *sig, 20853858a1f4SJohn Baldwin struct aiocb_ops *ops) 20860972628aSDavid Xu { 2087b40ce416SJulian Elischer struct proc *p = td->td_proc; 20883858a1f4SJohn Baldwin struct aiocb *iocb; 20892244ea07SJohn Dyson struct kaioinfo *ki; 20901ce91824SDavid Xu struct aioliojob *lj; 209169cd28daSDoug Ambrisko struct kevent kev; 20921ce91824SDavid Xu int error; 2093fd3bf775SJohn Dyson int nerror; 2094ee877a35SJohn Dyson int i; 2095ee877a35SJohn Dyson 20963858a1f4SJohn Baldwin if ((mode != LIO_NOWAIT) && (mode != LIO_WAIT)) 2097ac41f2efSAlfred Perlstein return (EINVAL); 20982244ea07SJohn Dyson 2099ae3b195fSTim J. Robbins if (nent < 0 || nent > AIO_LISTIO_MAX) 2100ac41f2efSAlfred Perlstein return (EINVAL); 21012244ea07SJohn Dyson 2102bfbbc4aaSJason Evans if (p->p_aioinfo == NULL) 21032244ea07SJohn Dyson aio_init_aioinfo(p); 21042244ea07SJohn Dyson 21052244ea07SJohn Dyson ki = p->p_aioinfo; 21062244ea07SJohn Dyson 2107a163d034SWarner Losh lj = uma_zalloc(aiolio_zone, M_WAITOK); 210884af4da6SJohn Dyson lj->lioj_flags = 0; 21091ce91824SDavid Xu lj->lioj_count = 0; 21101ce91824SDavid Xu lj->lioj_finished_count = 0; 2111759ccccaSDavid Xu knlist_init(&lj->klist, AIO_MTX(ki), NULL, NULL, NULL); 21124c0fb2cfSDavid Xu ksiginfo_init(&lj->lioj_ksi); 211369cd28daSDoug Ambrisko 211484af4da6SJohn Dyson /* 2115bfbbc4aaSJason Evans * Setup signal. 211684af4da6SJohn Dyson */ 21173858a1f4SJohn Baldwin if (sig && (mode == LIO_NOWAIT)) { 21183858a1f4SJohn Baldwin bcopy(sig, &lj->lioj_signal, sizeof(lj->lioj_signal)); 211969cd28daSDoug Ambrisko if (lj->lioj_signal.sigev_notify == SIGEV_KEVENT) { 212069cd28daSDoug Ambrisko /* Assume only new style KEVENT */ 212169cd28daSDoug Ambrisko kev.filter = EVFILT_LIO; 212269cd28daSDoug Ambrisko kev.flags = EV_ADD | EV_ENABLE | EV_FLAG1; 21233858a1f4SJohn Baldwin kev.ident = (uintptr_t)uacb_list; /* something unique */ 212469cd28daSDoug Ambrisko kev.data = (intptr_t)lj; 21251ce91824SDavid Xu /* pass user defined sigval data */ 21261ce91824SDavid Xu kev.udata = lj->lioj_signal.sigev_value.sival_ptr; 21274db71d27SJohn-Mark Gurney error = kqfd_register( 21284db71d27SJohn-Mark Gurney lj->lioj_signal.sigev_notify_kqueue, &kev, td, 1); 212969cd28daSDoug Ambrisko if (error) { 213069cd28daSDoug Ambrisko uma_zfree(aiolio_zone, lj); 213169cd28daSDoug Ambrisko return (error); 213269cd28daSDoug Ambrisko } 21331ce91824SDavid Xu } else if (lj->lioj_signal.sigev_notify == SIGEV_NONE) { 21341ce91824SDavid Xu ; 213568d71118SDavid Xu } else if (lj->lioj_signal.sigev_notify == SIGEV_SIGNAL || 213668d71118SDavid Xu lj->lioj_signal.sigev_notify == SIGEV_THREAD_ID) { 213768d71118SDavid Xu if (!_SIG_VALID(lj->lioj_signal.sigev_signo)) { 213869cd28daSDoug Ambrisko uma_zfree(aiolio_zone, lj); 213969cd28daSDoug Ambrisko return EINVAL; 214068d71118SDavid Xu } 214184af4da6SJohn Dyson lj->lioj_flags |= LIOJ_SIGNAL; 214268d71118SDavid Xu } else { 214368d71118SDavid Xu uma_zfree(aiolio_zone, lj); 214468d71118SDavid Xu return EINVAL; 21454d752b01SAlan Cox } 21461ce91824SDavid Xu } 214769cd28daSDoug Ambrisko 2148759ccccaSDavid Xu AIO_LOCK(ki); 21492f3cf918SAlfred Perlstein TAILQ_INSERT_TAIL(&ki->kaio_liojoblist, lj, lioj_list); 21502244ea07SJohn Dyson /* 21511ce91824SDavid Xu * Add extra aiocb count to avoid the lio to be freed 21521ce91824SDavid Xu * by other threads doing aio_waitcomplete or aio_return, 21531ce91824SDavid Xu * and prevent event from being sent until we have queued 21541ce91824SDavid Xu * all tasks. 21551ce91824SDavid Xu */ 21561ce91824SDavid Xu lj->lioj_count = 1; 2157759ccccaSDavid Xu AIO_UNLOCK(ki); 21581ce91824SDavid Xu 21591ce91824SDavid Xu /* 2160bfbbc4aaSJason Evans * Get pointers to the list of I/O requests. 21612244ea07SJohn Dyson */ 2162fd3bf775SJohn Dyson nerror = 0; 21633858a1f4SJohn Baldwin for (i = 0; i < nent; i++) { 21643858a1f4SJohn Baldwin iocb = acb_list[i]; 21653858a1f4SJohn Baldwin if (iocb != NULL) { 21663858a1f4SJohn Baldwin error = aio_aqueue(td, iocb, lj, LIO_NOP, ops); 21671ce91824SDavid Xu if (error != 0) 2168fd3bf775SJohn Dyson nerror++; 2169fd3bf775SJohn Dyson } 2170fd3bf775SJohn Dyson } 21712244ea07SJohn Dyson 21721ce91824SDavid Xu error = 0; 2173759ccccaSDavid Xu AIO_LOCK(ki); 21743858a1f4SJohn Baldwin if (mode == LIO_WAIT) { 21751ce91824SDavid Xu while (lj->lioj_count - 1 != lj->lioj_finished_count) { 2176fd3bf775SJohn Dyson ki->kaio_flags |= KAIO_WAKEUP; 2177759ccccaSDavid Xu error = msleep(&p->p_aioinfo, AIO_MTX(ki), 21781ce91824SDavid Xu PRIBIO | PCATCH, "aiospn", 0); 21791ce91824SDavid Xu if (error == ERESTART) 21801ce91824SDavid Xu error = EINTR; 21811ce91824SDavid Xu if (error) 21821ce91824SDavid Xu break; 21831ce91824SDavid Xu } 21841ce91824SDavid Xu } else { 21851ce91824SDavid Xu if (lj->lioj_count - 1 == lj->lioj_finished_count) { 21861ce91824SDavid Xu if (lj->lioj_signal.sigev_notify == SIGEV_KEVENT) { 21871ce91824SDavid Xu lj->lioj_flags |= LIOJ_KEVENT_POSTED; 21881ce91824SDavid Xu KNOTE_LOCKED(&lj->klist, 1); 21891ce91824SDavid Xu } 21901ce91824SDavid Xu if ((lj->lioj_flags & (LIOJ_SIGNAL|LIOJ_SIGNAL_POSTED)) 21911ce91824SDavid Xu == LIOJ_SIGNAL 21921ce91824SDavid Xu && (lj->lioj_signal.sigev_notify == SIGEV_SIGNAL || 21931ce91824SDavid Xu lj->lioj_signal.sigev_notify == SIGEV_THREAD_ID)) { 21941ce91824SDavid Xu aio_sendsig(p, &lj->lioj_signal, 21951ce91824SDavid Xu &lj->lioj_ksi); 21961ce91824SDavid Xu lj->lioj_flags |= LIOJ_SIGNAL_POSTED; 21972244ea07SJohn Dyson } 21982244ea07SJohn Dyson } 21991ce91824SDavid Xu } 22001ce91824SDavid Xu lj->lioj_count--; 22011ce91824SDavid Xu if (lj->lioj_count == 0) { 22021ce91824SDavid Xu TAILQ_REMOVE(&ki->kaio_liojoblist, lj, lioj_list); 22031ce91824SDavid Xu knlist_delete(&lj->klist, curthread, 1); 2204759ccccaSDavid Xu PROC_LOCK(p); 22051ce91824SDavid Xu sigqueue_take(&lj->lioj_ksi); 22061ce91824SDavid Xu PROC_UNLOCK(p); 2207759ccccaSDavid Xu AIO_UNLOCK(ki); 22081ce91824SDavid Xu uma_zfree(aiolio_zone, lj); 22091ce91824SDavid Xu } else 2210759ccccaSDavid Xu AIO_UNLOCK(ki); 22112244ea07SJohn Dyson 22121ce91824SDavid Xu if (nerror) 22131ce91824SDavid Xu return (EIO); 22141ce91824SDavid Xu return (error); 2215ee877a35SJohn Dyson } 2216fd3bf775SJohn Dyson 22173858a1f4SJohn Baldwin /* syscall - list directed I/O (REALTIME) */ 22183858a1f4SJohn Baldwin int 22193858a1f4SJohn Baldwin olio_listio(struct thread *td, struct olio_listio_args *uap) 22203858a1f4SJohn Baldwin { 22213858a1f4SJohn Baldwin struct aiocb **acb_list; 22223858a1f4SJohn Baldwin struct sigevent *sigp, sig; 22233858a1f4SJohn Baldwin struct osigevent osig; 22243858a1f4SJohn Baldwin int error, nent; 22253858a1f4SJohn Baldwin 22263858a1f4SJohn Baldwin if ((uap->mode != LIO_NOWAIT) && (uap->mode != LIO_WAIT)) 22273858a1f4SJohn Baldwin return (EINVAL); 22283858a1f4SJohn Baldwin 22293858a1f4SJohn Baldwin nent = uap->nent; 22303858a1f4SJohn Baldwin if (nent < 0 || nent > AIO_LISTIO_MAX) 22313858a1f4SJohn Baldwin return (EINVAL); 22323858a1f4SJohn Baldwin 22333858a1f4SJohn Baldwin if (uap->sig && (uap->mode == LIO_NOWAIT)) { 22343858a1f4SJohn Baldwin error = copyin(uap->sig, &osig, sizeof(osig)); 22353858a1f4SJohn Baldwin if (error) 22363858a1f4SJohn Baldwin return (error); 22373858a1f4SJohn Baldwin error = convert_old_sigevent(&osig, &sig); 22383858a1f4SJohn Baldwin if (error) 22393858a1f4SJohn Baldwin return (error); 22403858a1f4SJohn Baldwin sigp = &sig; 22413858a1f4SJohn Baldwin } else 22423858a1f4SJohn Baldwin sigp = NULL; 22433858a1f4SJohn Baldwin 22443858a1f4SJohn Baldwin acb_list = malloc(sizeof(struct aiocb *) * nent, M_LIO, M_WAITOK); 22453858a1f4SJohn Baldwin error = copyin(uap->acb_list, acb_list, nent * sizeof(acb_list[0])); 22463858a1f4SJohn Baldwin if (error == 0) 22473858a1f4SJohn Baldwin error = kern_lio_listio(td, uap->mode, 22483858a1f4SJohn Baldwin (struct aiocb * const *)uap->acb_list, acb_list, nent, sigp, 22493858a1f4SJohn Baldwin &aiocb_ops_osigevent); 22503858a1f4SJohn Baldwin free(acb_list, M_LIO); 22513858a1f4SJohn Baldwin return (error); 22523858a1f4SJohn Baldwin } 22533858a1f4SJohn Baldwin 22543858a1f4SJohn Baldwin /* syscall - list directed I/O (REALTIME) */ 22553858a1f4SJohn Baldwin int 22563858a1f4SJohn Baldwin lio_listio(struct thread *td, struct lio_listio_args *uap) 22573858a1f4SJohn Baldwin { 22583858a1f4SJohn Baldwin struct aiocb **acb_list; 22593858a1f4SJohn Baldwin struct sigevent *sigp, sig; 22603858a1f4SJohn Baldwin int error, nent; 22613858a1f4SJohn Baldwin 22623858a1f4SJohn Baldwin if ((uap->mode != LIO_NOWAIT) && (uap->mode != LIO_WAIT)) 22633858a1f4SJohn Baldwin return (EINVAL); 22643858a1f4SJohn Baldwin 22653858a1f4SJohn Baldwin nent = uap->nent; 22663858a1f4SJohn Baldwin if (nent < 0 || nent > AIO_LISTIO_MAX) 22673858a1f4SJohn Baldwin return (EINVAL); 22683858a1f4SJohn Baldwin 22693858a1f4SJohn Baldwin if (uap->sig && (uap->mode == LIO_NOWAIT)) { 22703858a1f4SJohn Baldwin error = copyin(uap->sig, &sig, sizeof(sig)); 22713858a1f4SJohn Baldwin if (error) 22723858a1f4SJohn Baldwin return (error); 22733858a1f4SJohn Baldwin sigp = &sig; 22743858a1f4SJohn Baldwin } else 22753858a1f4SJohn Baldwin sigp = NULL; 22763858a1f4SJohn Baldwin 22773858a1f4SJohn Baldwin acb_list = malloc(sizeof(struct aiocb *) * nent, M_LIO, M_WAITOK); 22783858a1f4SJohn Baldwin error = copyin(uap->acb_list, acb_list, nent * sizeof(acb_list[0])); 22793858a1f4SJohn Baldwin if (error == 0) 22803858a1f4SJohn Baldwin error = kern_lio_listio(td, uap->mode, uap->acb_list, acb_list, 22813858a1f4SJohn Baldwin nent, sigp, &aiocb_ops); 22823858a1f4SJohn Baldwin free(acb_list, M_LIO); 22833858a1f4SJohn Baldwin return (error); 22843858a1f4SJohn Baldwin } 22853858a1f4SJohn Baldwin 228684af4da6SJohn Dyson /* 22871ce91824SDavid Xu * Called from interrupt thread for physio, we should return as fast 22881ce91824SDavid Xu * as possible, so we schedule a biohelper task. 228984af4da6SJohn Dyson */ 2290fd3bf775SJohn Dyson static void 2291bfbbc4aaSJason Evans aio_physwakeup(struct buf *bp) 2292fd3bf775SJohn Dyson { 229384af4da6SJohn Dyson struct aiocblist *aiocbe; 2294fd3bf775SJohn Dyson 22958edbaf85SHidetoshi Shimokawa aiocbe = (struct aiocblist *)bp->b_caller1; 22961ce91824SDavid Xu taskqueue_enqueue(taskqueue_aiod_bio, &aiocbe->biotask); 22971ce91824SDavid Xu } 229884af4da6SJohn Dyson 22991ce91824SDavid Xu /* 23001ce91824SDavid Xu * Task routine to perform heavy tasks, process wakeup, and signals. 23011ce91824SDavid Xu */ 23021ce91824SDavid Xu static void 23031ce91824SDavid Xu biohelper(void *context, int pending) 23041ce91824SDavid Xu { 23051ce91824SDavid Xu struct aiocblist *aiocbe = context; 23061ce91824SDavid Xu struct buf *bp; 23071ce91824SDavid Xu struct proc *userp; 230827b8220dSDavid Xu struct kaioinfo *ki; 23091ce91824SDavid Xu int nblks; 23101ce91824SDavid Xu 23111ce91824SDavid Xu bp = aiocbe->bp; 23121ce91824SDavid Xu userp = aiocbe->userproc; 231327b8220dSDavid Xu ki = userp->p_aioinfo; 2314759ccccaSDavid Xu AIO_LOCK(ki); 231584af4da6SJohn Dyson aiocbe->uaiocb._aiocb_private.status -= bp->b_resid; 231684af4da6SJohn Dyson aiocbe->uaiocb._aiocb_private.error = 0; 2317c244d2deSPoul-Henning Kamp if (bp->b_ioflags & BIO_ERROR) 231884af4da6SJohn Dyson aiocbe->uaiocb._aiocb_private.error = bp->b_error; 23191ce91824SDavid Xu nblks = btodb(aiocbe->uaiocb.aio_nbytes); 23201ce91824SDavid Xu if (aiocbe->uaiocb.aio_lio_opcode == LIO_WRITE) 23211ce91824SDavid Xu aiocbe->outputcharge += nblks; 23221ce91824SDavid Xu else 23231ce91824SDavid Xu aiocbe->inputcharge += nblks; 23241ce91824SDavid Xu aiocbe->bp = NULL; 23251ce91824SDavid Xu TAILQ_REMOVE(&userp->p_aioinfo->kaio_bufqueue, aiocbe, plist); 232627b8220dSDavid Xu ki->kaio_buffer_count--; 232769cd28daSDoug Ambrisko aio_bio_done_notify(userp, aiocbe, DONE_BUF); 2328759ccccaSDavid Xu AIO_UNLOCK(ki); 23291ce91824SDavid Xu 23301ce91824SDavid Xu /* Release mapping into kernel space. */ 23311ce91824SDavid Xu vunmapbuf(bp); 23321ce91824SDavid Xu relpbuf(bp, NULL); 23331ce91824SDavid Xu atomic_subtract_int(&num_buf_aio, 1); 233484af4da6SJohn Dyson } 2335bfbbc4aaSJason Evans 2336eb8e6d52SEivind Eklund /* syscall - wait for the next completion of an aio request */ 23373858a1f4SJohn Baldwin static int 23383858a1f4SJohn Baldwin kern_aio_waitcomplete(struct thread *td, struct aiocb **aiocbp, 23393858a1f4SJohn Baldwin struct timespec *ts, struct aiocb_ops *ops) 2340bfbbc4aaSJason Evans { 2341b40ce416SJulian Elischer struct proc *p = td->td_proc; 2342bfbbc4aaSJason Evans struct timeval atv; 2343bfbbc4aaSJason Evans struct kaioinfo *ki; 23441ce91824SDavid Xu struct aiocblist *cb; 23451ce91824SDavid Xu struct aiocb *uuaiocb; 23461ce91824SDavid Xu int error, status, timo; 2347bfbbc4aaSJason Evans 23483858a1f4SJohn Baldwin ops->store_aiocb(aiocbp, NULL); 2349dd85920aSJason Evans 2350bfbbc4aaSJason Evans timo = 0; 23513858a1f4SJohn Baldwin if (ts) { 23523858a1f4SJohn Baldwin if ((ts->tv_nsec < 0) || (ts->tv_nsec >= 1000000000)) 2353bfbbc4aaSJason Evans return (EINVAL); 2354bfbbc4aaSJason Evans 23553858a1f4SJohn Baldwin TIMESPEC_TO_TIMEVAL(&atv, ts); 2356bfbbc4aaSJason Evans if (itimerfix(&atv)) 2357bfbbc4aaSJason Evans return (EINVAL); 2358bfbbc4aaSJason Evans timo = tvtohz(&atv); 2359bfbbc4aaSJason Evans } 2360bfbbc4aaSJason Evans 23618213baf0SChristian S.J. Peron if (p->p_aioinfo == NULL) 2362323fe565SDavid Xu aio_init_aioinfo(p); 23638213baf0SChristian S.J. Peron ki = p->p_aioinfo; 2364bfbbc4aaSJason Evans 23651ce91824SDavid Xu error = 0; 23661ce91824SDavid Xu cb = NULL; 2367759ccccaSDavid Xu AIO_LOCK(ki); 23681ce91824SDavid Xu while ((cb = TAILQ_FIRST(&ki->kaio_done)) == NULL) { 23691ce91824SDavid Xu ki->kaio_flags |= KAIO_WAKEUP; 2370759ccccaSDavid Xu error = msleep(&p->p_aioinfo, AIO_MTX(ki), PRIBIO | PCATCH, 23711ce91824SDavid Xu "aiowc", timo); 237227b8220dSDavid Xu if (timo && error == ERESTART) 23731ce91824SDavid Xu error = EINTR; 23741ce91824SDavid Xu if (error) 23751ce91824SDavid Xu break; 23761ce91824SDavid Xu } 23771ce91824SDavid Xu 23781ce91824SDavid Xu if (cb != NULL) { 23791ce91824SDavid Xu MPASS(cb->jobstate == JOBST_JOBFINISHED); 23801ce91824SDavid Xu uuaiocb = cb->uuaiocb; 23811ce91824SDavid Xu status = cb->uaiocb._aiocb_private.status; 23821ce91824SDavid Xu error = cb->uaiocb._aiocb_private.error; 23831ce91824SDavid Xu td->td_retval[0] = status; 2384bfbbc4aaSJason Evans if (cb->uaiocb.aio_lio_opcode == LIO_WRITE) { 23851c4bcd05SJeff Roberson td->td_ru.ru_oublock += cb->outputcharge; 2386bfbbc4aaSJason Evans cb->outputcharge = 0; 2387bfbbc4aaSJason Evans } else if (cb->uaiocb.aio_lio_opcode == LIO_READ) { 23881c4bcd05SJeff Roberson td->td_ru.ru_inblock += cb->inputcharge; 2389bfbbc4aaSJason Evans cb->inputcharge = 0; 2390bfbbc4aaSJason Evans } 2391bfbbc4aaSJason Evans aio_free_entry(cb); 2392759ccccaSDavid Xu AIO_UNLOCK(ki); 23933858a1f4SJohn Baldwin ops->store_aiocb(aiocbp, uuaiocb); 23943858a1f4SJohn Baldwin ops->store_error(uuaiocb, error); 23953858a1f4SJohn Baldwin ops->store_status(uuaiocb, status); 23961ce91824SDavid Xu } else 2397759ccccaSDavid Xu AIO_UNLOCK(ki); 2398bfbbc4aaSJason Evans 2399ac41f2efSAlfred Perlstein return (error); 2400bfbbc4aaSJason Evans } 2401cb679c38SJonathan Lemon 240299eee864SDavid Xu int 24033858a1f4SJohn Baldwin aio_waitcomplete(struct thread *td, struct aio_waitcomplete_args *uap) 24043858a1f4SJohn Baldwin { 24053858a1f4SJohn Baldwin struct timespec ts, *tsp; 24063858a1f4SJohn Baldwin int error; 24073858a1f4SJohn Baldwin 24083858a1f4SJohn Baldwin if (uap->timeout) { 24093858a1f4SJohn Baldwin /* Get timespec struct. */ 24103858a1f4SJohn Baldwin error = copyin(uap->timeout, &ts, sizeof(ts)); 24113858a1f4SJohn Baldwin if (error) 24123858a1f4SJohn Baldwin return (error); 24133858a1f4SJohn Baldwin tsp = &ts; 24143858a1f4SJohn Baldwin } else 24153858a1f4SJohn Baldwin tsp = NULL; 24163858a1f4SJohn Baldwin 24173858a1f4SJohn Baldwin return (kern_aio_waitcomplete(td, uap->aiocbp, tsp, &aiocb_ops)); 24183858a1f4SJohn Baldwin } 24193858a1f4SJohn Baldwin 24203858a1f4SJohn Baldwin static int 24213858a1f4SJohn Baldwin kern_aio_fsync(struct thread *td, int op, struct aiocb *aiocbp, 24223858a1f4SJohn Baldwin struct aiocb_ops *ops) 242399eee864SDavid Xu { 242499eee864SDavid Xu struct proc *p = td->td_proc; 242599eee864SDavid Xu struct kaioinfo *ki; 242699eee864SDavid Xu 24273858a1f4SJohn Baldwin if (op != O_SYNC) /* XXX lack of O_DSYNC */ 242899eee864SDavid Xu return (EINVAL); 242999eee864SDavid Xu ki = p->p_aioinfo; 243099eee864SDavid Xu if (ki == NULL) 243199eee864SDavid Xu aio_init_aioinfo(p); 24323858a1f4SJohn Baldwin return (aio_aqueue(td, aiocbp, NULL, LIO_SYNC, ops)); 24333858a1f4SJohn Baldwin } 24343858a1f4SJohn Baldwin 24353858a1f4SJohn Baldwin int 24363858a1f4SJohn Baldwin aio_fsync(struct thread *td, struct aio_fsync_args *uap) 24373858a1f4SJohn Baldwin { 24383858a1f4SJohn Baldwin 24393858a1f4SJohn Baldwin return (kern_aio_fsync(td, uap->op, uap->aiocbp, &aiocb_ops)); 244099eee864SDavid Xu } 244199eee864SDavid Xu 2442eb8e6d52SEivind Eklund /* kqueue attach function */ 2443cb679c38SJonathan Lemon static int 2444cb679c38SJonathan Lemon filt_aioattach(struct knote *kn) 2445cb679c38SJonathan Lemon { 2446b46f1c55SAlan Cox struct aiocblist *aiocbe = (struct aiocblist *)kn->kn_sdata; 2447cb679c38SJonathan Lemon 2448cb679c38SJonathan Lemon /* 2449cb679c38SJonathan Lemon * The aiocbe pointer must be validated before using it, so 2450cb679c38SJonathan Lemon * registration is restricted to the kernel; the user cannot 2451cb679c38SJonathan Lemon * set EV_FLAG1. 2452cb679c38SJonathan Lemon */ 2453cb679c38SJonathan Lemon if ((kn->kn_flags & EV_FLAG1) == 0) 2454cb679c38SJonathan Lemon return (EPERM); 2455a8afa221SJean-Sébastien Pédron kn->kn_ptr.p_aio = aiocbe; 2456cb679c38SJonathan Lemon kn->kn_flags &= ~EV_FLAG1; 2457cb679c38SJonathan Lemon 2458ad3b9257SJohn-Mark Gurney knlist_add(&aiocbe->klist, kn, 0); 2459cb679c38SJonathan Lemon 2460cb679c38SJonathan Lemon return (0); 2461cb679c38SJonathan Lemon } 2462cb679c38SJonathan Lemon 2463eb8e6d52SEivind Eklund /* kqueue detach function */ 2464cb679c38SJonathan Lemon static void 2465cb679c38SJonathan Lemon filt_aiodetach(struct knote *kn) 2466cb679c38SJonathan Lemon { 2467a8afa221SJean-Sébastien Pédron struct aiocblist *aiocbe = kn->kn_ptr.p_aio; 2468cb679c38SJonathan Lemon 246969cd28daSDoug Ambrisko if (!knlist_empty(&aiocbe->klist)) 2470ad3b9257SJohn-Mark Gurney knlist_remove(&aiocbe->klist, kn, 0); 2471cb679c38SJonathan Lemon } 2472cb679c38SJonathan Lemon 2473eb8e6d52SEivind Eklund /* kqueue filter function */ 2474cb679c38SJonathan Lemon /*ARGSUSED*/ 2475cb679c38SJonathan Lemon static int 2476cb679c38SJonathan Lemon filt_aio(struct knote *kn, long hint) 2477cb679c38SJonathan Lemon { 2478a8afa221SJean-Sébastien Pédron struct aiocblist *aiocbe = kn->kn_ptr.p_aio; 2479cb679c38SJonathan Lemon 248091369fc7SAlan Cox kn->kn_data = aiocbe->uaiocb._aiocb_private.error; 24811ce91824SDavid Xu if (aiocbe->jobstate != JOBST_JOBFINISHED) 2482cb679c38SJonathan Lemon return (0); 2483cb679c38SJonathan Lemon kn->kn_flags |= EV_EOF; 2484cb679c38SJonathan Lemon return (1); 2485cb679c38SJonathan Lemon } 248669cd28daSDoug Ambrisko 248769cd28daSDoug Ambrisko /* kqueue attach function */ 248869cd28daSDoug Ambrisko static int 248969cd28daSDoug Ambrisko filt_lioattach(struct knote *kn) 249069cd28daSDoug Ambrisko { 24911ce91824SDavid Xu struct aioliojob * lj = (struct aioliojob *)kn->kn_sdata; 249269cd28daSDoug Ambrisko 249369cd28daSDoug Ambrisko /* 24941ce91824SDavid Xu * The aioliojob pointer must be validated before using it, so 249569cd28daSDoug Ambrisko * registration is restricted to the kernel; the user cannot 249669cd28daSDoug Ambrisko * set EV_FLAG1. 249769cd28daSDoug Ambrisko */ 249869cd28daSDoug Ambrisko if ((kn->kn_flags & EV_FLAG1) == 0) 249969cd28daSDoug Ambrisko return (EPERM); 2500a8afa221SJean-Sébastien Pédron kn->kn_ptr.p_lio = lj; 250169cd28daSDoug Ambrisko kn->kn_flags &= ~EV_FLAG1; 250269cd28daSDoug Ambrisko 250369cd28daSDoug Ambrisko knlist_add(&lj->klist, kn, 0); 250469cd28daSDoug Ambrisko 250569cd28daSDoug Ambrisko return (0); 250669cd28daSDoug Ambrisko } 250769cd28daSDoug Ambrisko 250869cd28daSDoug Ambrisko /* kqueue detach function */ 250969cd28daSDoug Ambrisko static void 251069cd28daSDoug Ambrisko filt_liodetach(struct knote *kn) 251169cd28daSDoug Ambrisko { 2512a8afa221SJean-Sébastien Pédron struct aioliojob * lj = kn->kn_ptr.p_lio; 251369cd28daSDoug Ambrisko 251469cd28daSDoug Ambrisko if (!knlist_empty(&lj->klist)) 251569cd28daSDoug Ambrisko knlist_remove(&lj->klist, kn, 0); 251669cd28daSDoug Ambrisko } 251769cd28daSDoug Ambrisko 251869cd28daSDoug Ambrisko /* kqueue filter function */ 251969cd28daSDoug Ambrisko /*ARGSUSED*/ 252069cd28daSDoug Ambrisko static int 252169cd28daSDoug Ambrisko filt_lio(struct knote *kn, long hint) 252269cd28daSDoug Ambrisko { 2523a8afa221SJean-Sébastien Pédron struct aioliojob * lj = kn->kn_ptr.p_lio; 25241ce91824SDavid Xu 252569cd28daSDoug Ambrisko return (lj->lioj_flags & LIOJ_KEVENT_POSTED); 252669cd28daSDoug Ambrisko } 25273858a1f4SJohn Baldwin 25283858a1f4SJohn Baldwin #ifdef COMPAT_IA32 25293858a1f4SJohn Baldwin #include <sys/mount.h> 25303858a1f4SJohn Baldwin #include <sys/socket.h> 25313858a1f4SJohn Baldwin #include <compat/freebsd32/freebsd32.h> 25323858a1f4SJohn Baldwin #include <compat/freebsd32/freebsd32_proto.h> 25333858a1f4SJohn Baldwin #include <compat/freebsd32/freebsd32_signal.h> 25343858a1f4SJohn Baldwin #include <compat/freebsd32/freebsd32_syscall.h> 25353858a1f4SJohn Baldwin #include <compat/freebsd32/freebsd32_util.h> 25363858a1f4SJohn Baldwin 25373858a1f4SJohn Baldwin struct __aiocb_private32 { 25383858a1f4SJohn Baldwin int32_t status; 25393858a1f4SJohn Baldwin int32_t error; 25403858a1f4SJohn Baldwin uint32_t kernelinfo; 25413858a1f4SJohn Baldwin }; 25423858a1f4SJohn Baldwin 25433858a1f4SJohn Baldwin typedef struct oaiocb32 { 25443858a1f4SJohn Baldwin int aio_fildes; /* File descriptor */ 25453858a1f4SJohn Baldwin uint64_t aio_offset __packed; /* File offset for I/O */ 25463858a1f4SJohn Baldwin uint32_t aio_buf; /* I/O buffer in process space */ 25473858a1f4SJohn Baldwin uint32_t aio_nbytes; /* Number of bytes for I/O */ 25483858a1f4SJohn Baldwin struct osigevent32 aio_sigevent; /* Signal to deliver */ 25493858a1f4SJohn Baldwin int aio_lio_opcode; /* LIO opcode */ 25503858a1f4SJohn Baldwin int aio_reqprio; /* Request priority -- ignored */ 25513858a1f4SJohn Baldwin struct __aiocb_private32 _aiocb_private; 25523858a1f4SJohn Baldwin } oaiocb32_t; 25533858a1f4SJohn Baldwin 25543858a1f4SJohn Baldwin typedef struct aiocb32 { 25553858a1f4SJohn Baldwin int32_t aio_fildes; /* File descriptor */ 25563858a1f4SJohn Baldwin uint64_t aio_offset __packed; /* File offset for I/O */ 25573858a1f4SJohn Baldwin uint32_t aio_buf; /* I/O buffer in process space */ 25583858a1f4SJohn Baldwin uint32_t aio_nbytes; /* Number of bytes for I/O */ 25593858a1f4SJohn Baldwin int __spare__[2]; 25603858a1f4SJohn Baldwin uint32_t __spare2__; 25613858a1f4SJohn Baldwin int aio_lio_opcode; /* LIO opcode */ 25623858a1f4SJohn Baldwin int aio_reqprio; /* Request priority -- ignored */ 25633858a1f4SJohn Baldwin struct __aiocb_private32 _aiocb_private; 25643858a1f4SJohn Baldwin struct sigevent32 aio_sigevent; /* Signal to deliver */ 25653858a1f4SJohn Baldwin } aiocb32_t; 25663858a1f4SJohn Baldwin 25673858a1f4SJohn Baldwin static int 25683858a1f4SJohn Baldwin convert_old_sigevent32(struct osigevent32 *osig, struct sigevent *nsig) 25693858a1f4SJohn Baldwin { 25703858a1f4SJohn Baldwin 25713858a1f4SJohn Baldwin /* 25723858a1f4SJohn Baldwin * Only SIGEV_NONE, SIGEV_SIGNAL, and SIGEV_KEVENT are 25733858a1f4SJohn Baldwin * supported by AIO with the old sigevent structure. 25743858a1f4SJohn Baldwin */ 25753858a1f4SJohn Baldwin CP(*osig, *nsig, sigev_notify); 25763858a1f4SJohn Baldwin switch (nsig->sigev_notify) { 25773858a1f4SJohn Baldwin case SIGEV_NONE: 25783858a1f4SJohn Baldwin break; 25793858a1f4SJohn Baldwin case SIGEV_SIGNAL: 25803858a1f4SJohn Baldwin nsig->sigev_signo = osig->__sigev_u.__sigev_signo; 25813858a1f4SJohn Baldwin break; 25823858a1f4SJohn Baldwin case SIGEV_KEVENT: 25833858a1f4SJohn Baldwin nsig->sigev_notify_kqueue = 25843858a1f4SJohn Baldwin osig->__sigev_u.__sigev_notify_kqueue; 25853858a1f4SJohn Baldwin PTRIN_CP(*osig, *nsig, sigev_value.sival_ptr); 25863858a1f4SJohn Baldwin break; 25873858a1f4SJohn Baldwin default: 25883858a1f4SJohn Baldwin return (EINVAL); 25893858a1f4SJohn Baldwin } 25903858a1f4SJohn Baldwin return (0); 25913858a1f4SJohn Baldwin } 25923858a1f4SJohn Baldwin 25933858a1f4SJohn Baldwin static int 25943858a1f4SJohn Baldwin aiocb32_copyin_old_sigevent(struct aiocb *ujob, struct aiocb *kjob) 25953858a1f4SJohn Baldwin { 25963858a1f4SJohn Baldwin struct oaiocb32 job32; 25973858a1f4SJohn Baldwin int error; 25983858a1f4SJohn Baldwin 25993858a1f4SJohn Baldwin bzero(kjob, sizeof(struct aiocb)); 26003858a1f4SJohn Baldwin error = copyin(ujob, &job32, sizeof(job32)); 26013858a1f4SJohn Baldwin if (error) 26023858a1f4SJohn Baldwin return (error); 26033858a1f4SJohn Baldwin 26043858a1f4SJohn Baldwin CP(job32, *kjob, aio_fildes); 26053858a1f4SJohn Baldwin CP(job32, *kjob, aio_offset); 26063858a1f4SJohn Baldwin PTRIN_CP(job32, *kjob, aio_buf); 26073858a1f4SJohn Baldwin CP(job32, *kjob, aio_nbytes); 26083858a1f4SJohn Baldwin CP(job32, *kjob, aio_lio_opcode); 26093858a1f4SJohn Baldwin CP(job32, *kjob, aio_reqprio); 26103858a1f4SJohn Baldwin CP(job32, *kjob, _aiocb_private.status); 26113858a1f4SJohn Baldwin CP(job32, *kjob, _aiocb_private.error); 26123858a1f4SJohn Baldwin PTRIN_CP(job32, *kjob, _aiocb_private.kernelinfo); 26133858a1f4SJohn Baldwin return (convert_old_sigevent32(&job32.aio_sigevent, 26143858a1f4SJohn Baldwin &kjob->aio_sigevent)); 26153858a1f4SJohn Baldwin } 26163858a1f4SJohn Baldwin 26173858a1f4SJohn Baldwin static int 26183858a1f4SJohn Baldwin convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig) 26193858a1f4SJohn Baldwin { 26203858a1f4SJohn Baldwin 26213858a1f4SJohn Baldwin CP(*sig32, *sig, sigev_notify); 26223858a1f4SJohn Baldwin switch (sig->sigev_notify) { 26233858a1f4SJohn Baldwin case SIGEV_NONE: 26243858a1f4SJohn Baldwin break; 26253858a1f4SJohn Baldwin case SIGEV_THREAD_ID: 26263858a1f4SJohn Baldwin CP(*sig32, *sig, sigev_notify_thread_id); 26273858a1f4SJohn Baldwin /* FALLTHROUGH */ 26283858a1f4SJohn Baldwin case SIGEV_SIGNAL: 26293858a1f4SJohn Baldwin CP(*sig32, *sig, sigev_signo); 26303858a1f4SJohn Baldwin break; 26313858a1f4SJohn Baldwin case SIGEV_KEVENT: 26323858a1f4SJohn Baldwin CP(*sig32, *sig, sigev_notify_kqueue); 26333858a1f4SJohn Baldwin PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr); 26343858a1f4SJohn Baldwin break; 26353858a1f4SJohn Baldwin default: 26363858a1f4SJohn Baldwin return (EINVAL); 26373858a1f4SJohn Baldwin } 26383858a1f4SJohn Baldwin return (0); 26393858a1f4SJohn Baldwin } 26403858a1f4SJohn Baldwin 26413858a1f4SJohn Baldwin static int 26423858a1f4SJohn Baldwin aiocb32_copyin(struct aiocb *ujob, struct aiocb *kjob) 26433858a1f4SJohn Baldwin { 26443858a1f4SJohn Baldwin struct aiocb32 job32; 26453858a1f4SJohn Baldwin int error; 26463858a1f4SJohn Baldwin 26473858a1f4SJohn Baldwin error = copyin(ujob, &job32, sizeof(job32)); 26483858a1f4SJohn Baldwin if (error) 26493858a1f4SJohn Baldwin return (error); 26503858a1f4SJohn Baldwin CP(job32, *kjob, aio_fildes); 26513858a1f4SJohn Baldwin CP(job32, *kjob, aio_offset); 26523858a1f4SJohn Baldwin PTRIN_CP(job32, *kjob, aio_buf); 26533858a1f4SJohn Baldwin CP(job32, *kjob, aio_nbytes); 26543858a1f4SJohn Baldwin CP(job32, *kjob, aio_lio_opcode); 26553858a1f4SJohn Baldwin CP(job32, *kjob, aio_reqprio); 26563858a1f4SJohn Baldwin CP(job32, *kjob, _aiocb_private.status); 26573858a1f4SJohn Baldwin CP(job32, *kjob, _aiocb_private.error); 26583858a1f4SJohn Baldwin PTRIN_CP(job32, *kjob, _aiocb_private.kernelinfo); 26593858a1f4SJohn Baldwin return (convert_sigevent32(&job32.aio_sigevent, &kjob->aio_sigevent)); 26603858a1f4SJohn Baldwin } 26613858a1f4SJohn Baldwin 26623858a1f4SJohn Baldwin static long 26633858a1f4SJohn Baldwin aiocb32_fetch_status(struct aiocb *ujob) 26643858a1f4SJohn Baldwin { 26653858a1f4SJohn Baldwin struct aiocb32 *ujob32; 26663858a1f4SJohn Baldwin 26673858a1f4SJohn Baldwin ujob32 = (struct aiocb32 *)ujob; 26683858a1f4SJohn Baldwin return (fuword32(&ujob32->_aiocb_private.status)); 26693858a1f4SJohn Baldwin } 26703858a1f4SJohn Baldwin 26713858a1f4SJohn Baldwin static long 26723858a1f4SJohn Baldwin aiocb32_fetch_error(struct aiocb *ujob) 26733858a1f4SJohn Baldwin { 26743858a1f4SJohn Baldwin struct aiocb32 *ujob32; 26753858a1f4SJohn Baldwin 26763858a1f4SJohn Baldwin ujob32 = (struct aiocb32 *)ujob; 26773858a1f4SJohn Baldwin return (fuword32(&ujob32->_aiocb_private.error)); 26783858a1f4SJohn Baldwin } 26793858a1f4SJohn Baldwin 26803858a1f4SJohn Baldwin static int 26813858a1f4SJohn Baldwin aiocb32_store_status(struct aiocb *ujob, long status) 26823858a1f4SJohn Baldwin { 26833858a1f4SJohn Baldwin struct aiocb32 *ujob32; 26843858a1f4SJohn Baldwin 26853858a1f4SJohn Baldwin ujob32 = (struct aiocb32 *)ujob; 26863858a1f4SJohn Baldwin return (suword32(&ujob32->_aiocb_private.status, status)); 26873858a1f4SJohn Baldwin } 26883858a1f4SJohn Baldwin 26893858a1f4SJohn Baldwin static int 26903858a1f4SJohn Baldwin aiocb32_store_error(struct aiocb *ujob, long error) 26913858a1f4SJohn Baldwin { 26923858a1f4SJohn Baldwin struct aiocb32 *ujob32; 26933858a1f4SJohn Baldwin 26943858a1f4SJohn Baldwin ujob32 = (struct aiocb32 *)ujob; 26953858a1f4SJohn Baldwin return (suword32(&ujob32->_aiocb_private.error, error)); 26963858a1f4SJohn Baldwin } 26973858a1f4SJohn Baldwin 26983858a1f4SJohn Baldwin static int 26993858a1f4SJohn Baldwin aiocb32_store_kernelinfo(struct aiocb *ujob, long jobref) 27003858a1f4SJohn Baldwin { 27013858a1f4SJohn Baldwin struct aiocb32 *ujob32; 27023858a1f4SJohn Baldwin 27033858a1f4SJohn Baldwin ujob32 = (struct aiocb32 *)ujob; 27043858a1f4SJohn Baldwin return (suword32(&ujob32->_aiocb_private.kernelinfo, jobref)); 27053858a1f4SJohn Baldwin } 27063858a1f4SJohn Baldwin 27073858a1f4SJohn Baldwin static int 27083858a1f4SJohn Baldwin aiocb32_store_aiocb(struct aiocb **ujobp, struct aiocb *ujob) 27093858a1f4SJohn Baldwin { 27103858a1f4SJohn Baldwin 27113858a1f4SJohn Baldwin return (suword32(ujobp, (long)ujob)); 27123858a1f4SJohn Baldwin } 27133858a1f4SJohn Baldwin 27143858a1f4SJohn Baldwin static struct aiocb_ops aiocb32_ops = { 27153858a1f4SJohn Baldwin .copyin = aiocb32_copyin, 27163858a1f4SJohn Baldwin .fetch_status = aiocb32_fetch_status, 27173858a1f4SJohn Baldwin .fetch_error = aiocb32_fetch_error, 27183858a1f4SJohn Baldwin .store_status = aiocb32_store_status, 27193858a1f4SJohn Baldwin .store_error = aiocb32_store_error, 27203858a1f4SJohn Baldwin .store_kernelinfo = aiocb32_store_kernelinfo, 27213858a1f4SJohn Baldwin .store_aiocb = aiocb32_store_aiocb, 27223858a1f4SJohn Baldwin }; 27233858a1f4SJohn Baldwin 27243858a1f4SJohn Baldwin static struct aiocb_ops aiocb32_ops_osigevent = { 27253858a1f4SJohn Baldwin .copyin = aiocb32_copyin_old_sigevent, 27263858a1f4SJohn Baldwin .fetch_status = aiocb32_fetch_status, 27273858a1f4SJohn Baldwin .fetch_error = aiocb32_fetch_error, 27283858a1f4SJohn Baldwin .store_status = aiocb32_store_status, 27293858a1f4SJohn Baldwin .store_error = aiocb32_store_error, 27303858a1f4SJohn Baldwin .store_kernelinfo = aiocb32_store_kernelinfo, 27313858a1f4SJohn Baldwin .store_aiocb = aiocb32_store_aiocb, 27323858a1f4SJohn Baldwin }; 27333858a1f4SJohn Baldwin 27343858a1f4SJohn Baldwin int 27353858a1f4SJohn Baldwin freebsd32_aio_return(struct thread *td, struct freebsd32_aio_return_args *uap) 27363858a1f4SJohn Baldwin { 27373858a1f4SJohn Baldwin 27383858a1f4SJohn Baldwin return (kern_aio_return(td, (struct aiocb *)uap->aiocbp, &aiocb32_ops)); 27393858a1f4SJohn Baldwin } 27403858a1f4SJohn Baldwin 27413858a1f4SJohn Baldwin int 27423858a1f4SJohn Baldwin freebsd32_aio_suspend(struct thread *td, struct freebsd32_aio_suspend_args *uap) 27433858a1f4SJohn Baldwin { 27443858a1f4SJohn Baldwin struct timespec32 ts32; 27453858a1f4SJohn Baldwin struct timespec ts, *tsp; 27463858a1f4SJohn Baldwin struct aiocb **ujoblist; 27473858a1f4SJohn Baldwin uint32_t *ujoblist32; 27483858a1f4SJohn Baldwin int error, i; 27493858a1f4SJohn Baldwin 27503858a1f4SJohn Baldwin if (uap->nent < 0 || uap->nent > AIO_LISTIO_MAX) 27513858a1f4SJohn Baldwin return (EINVAL); 27523858a1f4SJohn Baldwin 27533858a1f4SJohn Baldwin if (uap->timeout) { 27543858a1f4SJohn Baldwin /* Get timespec struct. */ 27553858a1f4SJohn Baldwin if ((error = copyin(uap->timeout, &ts32, sizeof(ts32))) != 0) 27563858a1f4SJohn Baldwin return (error); 27573858a1f4SJohn Baldwin CP(ts32, ts, tv_sec); 27583858a1f4SJohn Baldwin CP(ts32, ts, tv_nsec); 27593858a1f4SJohn Baldwin tsp = &ts; 27603858a1f4SJohn Baldwin } else 27613858a1f4SJohn Baldwin tsp = NULL; 27623858a1f4SJohn Baldwin 27633858a1f4SJohn Baldwin ujoblist = uma_zalloc(aiol_zone, M_WAITOK); 27643858a1f4SJohn Baldwin ujoblist32 = (uint32_t *)ujoblist; 27653858a1f4SJohn Baldwin error = copyin(uap->aiocbp, ujoblist32, uap->nent * 27663858a1f4SJohn Baldwin sizeof(ujoblist32[0])); 27673858a1f4SJohn Baldwin if (error == 0) { 27683858a1f4SJohn Baldwin for (i = uap->nent; i > 0; i--) 27693858a1f4SJohn Baldwin ujoblist[i] = PTRIN(ujoblist32[i]); 27703858a1f4SJohn Baldwin 27713858a1f4SJohn Baldwin error = kern_aio_suspend(td, uap->nent, ujoblist, tsp); 27723858a1f4SJohn Baldwin } 27733858a1f4SJohn Baldwin uma_zfree(aiol_zone, ujoblist); 27743858a1f4SJohn Baldwin return (error); 27753858a1f4SJohn Baldwin } 27763858a1f4SJohn Baldwin 27773858a1f4SJohn Baldwin int 27783858a1f4SJohn Baldwin freebsd32_aio_cancel(struct thread *td, struct freebsd32_aio_cancel_args *uap) 27793858a1f4SJohn Baldwin { 27803858a1f4SJohn Baldwin 27813858a1f4SJohn Baldwin return (aio_cancel(td, (struct aio_cancel_args *)uap)); 27823858a1f4SJohn Baldwin } 27833858a1f4SJohn Baldwin 27843858a1f4SJohn Baldwin int 27853858a1f4SJohn Baldwin freebsd32_aio_error(struct thread *td, struct freebsd32_aio_error_args *uap) 27863858a1f4SJohn Baldwin { 27873858a1f4SJohn Baldwin 27883858a1f4SJohn Baldwin return (kern_aio_error(td, (struct aiocb *)uap->aiocbp, &aiocb32_ops)); 27893858a1f4SJohn Baldwin } 27903858a1f4SJohn Baldwin 27913858a1f4SJohn Baldwin int 27923858a1f4SJohn Baldwin freebsd32_oaio_read(struct thread *td, struct freebsd32_oaio_read_args *uap) 27933858a1f4SJohn Baldwin { 27943858a1f4SJohn Baldwin 27953858a1f4SJohn Baldwin return (aio_aqueue(td, (struct aiocb *)uap->aiocbp, NULL, LIO_READ, 27963858a1f4SJohn Baldwin &aiocb32_ops_osigevent)); 27973858a1f4SJohn Baldwin } 27983858a1f4SJohn Baldwin 27993858a1f4SJohn Baldwin int 28003858a1f4SJohn Baldwin freebsd32_aio_read(struct thread *td, struct freebsd32_aio_read_args *uap) 28013858a1f4SJohn Baldwin { 28023858a1f4SJohn Baldwin 28033858a1f4SJohn Baldwin return (aio_aqueue(td, (struct aiocb *)uap->aiocbp, NULL, LIO_READ, 28043858a1f4SJohn Baldwin &aiocb32_ops)); 28053858a1f4SJohn Baldwin } 28063858a1f4SJohn Baldwin 28073858a1f4SJohn Baldwin int 28083858a1f4SJohn Baldwin freebsd32_oaio_write(struct thread *td, struct freebsd32_oaio_write_args *uap) 28093858a1f4SJohn Baldwin { 28103858a1f4SJohn Baldwin 28113858a1f4SJohn Baldwin return (aio_aqueue(td, (struct aiocb *)uap->aiocbp, NULL, LIO_WRITE, 28123858a1f4SJohn Baldwin &aiocb32_ops_osigevent)); 28133858a1f4SJohn Baldwin } 28143858a1f4SJohn Baldwin 28153858a1f4SJohn Baldwin int 28163858a1f4SJohn Baldwin freebsd32_aio_write(struct thread *td, struct freebsd32_aio_write_args *uap) 28173858a1f4SJohn Baldwin { 28183858a1f4SJohn Baldwin 28193858a1f4SJohn Baldwin return (aio_aqueue(td, (struct aiocb *)uap->aiocbp, NULL, LIO_WRITE, 28203858a1f4SJohn Baldwin &aiocb32_ops)); 28213858a1f4SJohn Baldwin } 28223858a1f4SJohn Baldwin 28233858a1f4SJohn Baldwin int 28243858a1f4SJohn Baldwin freebsd32_aio_waitcomplete(struct thread *td, 28253858a1f4SJohn Baldwin struct freebsd32_aio_waitcomplete_args *uap) 28263858a1f4SJohn Baldwin { 2827e588eeb1SJohn Baldwin struct timespec32 ts32; 28283858a1f4SJohn Baldwin struct timespec ts, *tsp; 28293858a1f4SJohn Baldwin int error; 28303858a1f4SJohn Baldwin 28313858a1f4SJohn Baldwin if (uap->timeout) { 28323858a1f4SJohn Baldwin /* Get timespec struct. */ 28333858a1f4SJohn Baldwin error = copyin(uap->timeout, &ts32, sizeof(ts32)); 28343858a1f4SJohn Baldwin if (error) 28353858a1f4SJohn Baldwin return (error); 28363858a1f4SJohn Baldwin CP(ts32, ts, tv_sec); 28373858a1f4SJohn Baldwin CP(ts32, ts, tv_nsec); 28383858a1f4SJohn Baldwin tsp = &ts; 28393858a1f4SJohn Baldwin } else 28403858a1f4SJohn Baldwin tsp = NULL; 28413858a1f4SJohn Baldwin 28423858a1f4SJohn Baldwin return (kern_aio_waitcomplete(td, (struct aiocb **)uap->aiocbp, tsp, 28433858a1f4SJohn Baldwin &aiocb32_ops)); 28443858a1f4SJohn Baldwin } 28453858a1f4SJohn Baldwin 28463858a1f4SJohn Baldwin int 28473858a1f4SJohn Baldwin freebsd32_aio_fsync(struct thread *td, struct freebsd32_aio_fsync_args *uap) 28483858a1f4SJohn Baldwin { 28493858a1f4SJohn Baldwin 28503858a1f4SJohn Baldwin return (kern_aio_fsync(td, uap->op, (struct aiocb *)uap->aiocbp, 28513858a1f4SJohn Baldwin &aiocb32_ops)); 28523858a1f4SJohn Baldwin } 28533858a1f4SJohn Baldwin 28543858a1f4SJohn Baldwin int 28553858a1f4SJohn Baldwin freebsd32_olio_listio(struct thread *td, struct freebsd32_olio_listio_args *uap) 28563858a1f4SJohn Baldwin { 28573858a1f4SJohn Baldwin struct aiocb **acb_list; 28583858a1f4SJohn Baldwin struct sigevent *sigp, sig; 28593858a1f4SJohn Baldwin struct osigevent32 osig; 28603858a1f4SJohn Baldwin uint32_t *acb_list32; 28613858a1f4SJohn Baldwin int error, i, nent; 28623858a1f4SJohn Baldwin 28633858a1f4SJohn Baldwin if ((uap->mode != LIO_NOWAIT) && (uap->mode != LIO_WAIT)) 28643858a1f4SJohn Baldwin return (EINVAL); 28653858a1f4SJohn Baldwin 28663858a1f4SJohn Baldwin nent = uap->nent; 28673858a1f4SJohn Baldwin if (nent < 0 || nent > AIO_LISTIO_MAX) 28683858a1f4SJohn Baldwin return (EINVAL); 28693858a1f4SJohn Baldwin 28703858a1f4SJohn Baldwin if (uap->sig && (uap->mode == LIO_NOWAIT)) { 28713858a1f4SJohn Baldwin error = copyin(uap->sig, &osig, sizeof(osig)); 28723858a1f4SJohn Baldwin if (error) 28733858a1f4SJohn Baldwin return (error); 28743858a1f4SJohn Baldwin error = convert_old_sigevent32(&osig, &sig); 28753858a1f4SJohn Baldwin if (error) 28763858a1f4SJohn Baldwin return (error); 28773858a1f4SJohn Baldwin sigp = &sig; 28783858a1f4SJohn Baldwin } else 28793858a1f4SJohn Baldwin sigp = NULL; 28803858a1f4SJohn Baldwin 28813858a1f4SJohn Baldwin acb_list32 = malloc(sizeof(uint32_t) * nent, M_LIO, M_WAITOK); 28823858a1f4SJohn Baldwin error = copyin(uap->acb_list, acb_list32, nent * sizeof(uint32_t)); 28833858a1f4SJohn Baldwin if (error) { 28843858a1f4SJohn Baldwin free(acb_list32, M_LIO); 28853858a1f4SJohn Baldwin return (error); 28863858a1f4SJohn Baldwin } 28873858a1f4SJohn Baldwin acb_list = malloc(sizeof(struct aiocb *) * nent, M_LIO, M_WAITOK); 28883858a1f4SJohn Baldwin for (i = 0; i < nent; i++) 28893858a1f4SJohn Baldwin acb_list[i] = PTRIN(acb_list32[i]); 28903858a1f4SJohn Baldwin free(acb_list32, M_LIO); 28913858a1f4SJohn Baldwin 28923858a1f4SJohn Baldwin error = kern_lio_listio(td, uap->mode, 28933858a1f4SJohn Baldwin (struct aiocb * const *)uap->acb_list, acb_list, nent, sigp, 28943858a1f4SJohn Baldwin &aiocb32_ops_osigevent); 28953858a1f4SJohn Baldwin free(acb_list, M_LIO); 28963858a1f4SJohn Baldwin return (error); 28973858a1f4SJohn Baldwin } 28983858a1f4SJohn Baldwin 28993858a1f4SJohn Baldwin int 29003858a1f4SJohn Baldwin freebsd32_lio_listio(struct thread *td, struct freebsd32_lio_listio_args *uap) 29013858a1f4SJohn Baldwin { 29023858a1f4SJohn Baldwin struct aiocb **acb_list; 29033858a1f4SJohn Baldwin struct sigevent *sigp, sig; 29043858a1f4SJohn Baldwin struct sigevent32 sig32; 29053858a1f4SJohn Baldwin uint32_t *acb_list32; 29063858a1f4SJohn Baldwin int error, i, nent; 29073858a1f4SJohn Baldwin 29083858a1f4SJohn Baldwin if ((uap->mode != LIO_NOWAIT) && (uap->mode != LIO_WAIT)) 29093858a1f4SJohn Baldwin return (EINVAL); 29103858a1f4SJohn Baldwin 29113858a1f4SJohn Baldwin nent = uap->nent; 29123858a1f4SJohn Baldwin if (nent < 0 || nent > AIO_LISTIO_MAX) 29133858a1f4SJohn Baldwin return (EINVAL); 29143858a1f4SJohn Baldwin 29153858a1f4SJohn Baldwin if (uap->sig && (uap->mode == LIO_NOWAIT)) { 29163858a1f4SJohn Baldwin error = copyin(uap->sig, &sig32, sizeof(sig32)); 29173858a1f4SJohn Baldwin if (error) 29183858a1f4SJohn Baldwin return (error); 29193858a1f4SJohn Baldwin error = convert_sigevent32(&sig32, &sig); 29203858a1f4SJohn Baldwin if (error) 29213858a1f4SJohn Baldwin return (error); 29223858a1f4SJohn Baldwin sigp = &sig; 29233858a1f4SJohn Baldwin } else 29243858a1f4SJohn Baldwin sigp = NULL; 29253858a1f4SJohn Baldwin 29263858a1f4SJohn Baldwin acb_list32 = malloc(sizeof(uint32_t) * nent, M_LIO, M_WAITOK); 29273858a1f4SJohn Baldwin error = copyin(uap->acb_list, acb_list32, nent * sizeof(uint32_t)); 29283858a1f4SJohn Baldwin if (error) { 29293858a1f4SJohn Baldwin free(acb_list32, M_LIO); 29303858a1f4SJohn Baldwin return (error); 29313858a1f4SJohn Baldwin } 29323858a1f4SJohn Baldwin acb_list = malloc(sizeof(struct aiocb *) * nent, M_LIO, M_WAITOK); 29333858a1f4SJohn Baldwin for (i = 0; i < nent; i++) 29343858a1f4SJohn Baldwin acb_list[i] = PTRIN(acb_list32[i]); 29353858a1f4SJohn Baldwin free(acb_list32, M_LIO); 29363858a1f4SJohn Baldwin 29373858a1f4SJohn Baldwin error = kern_lio_listio(td, uap->mode, 29383858a1f4SJohn Baldwin (struct aiocb * const *)uap->acb_list, acb_list, nent, sigp, 29393858a1f4SJohn Baldwin &aiocb32_ops); 29403858a1f4SJohn Baldwin free(acb_list, M_LIO); 29413858a1f4SJohn Baldwin return (error); 29423858a1f4SJohn Baldwin } 29433858a1f4SJohn Baldwin 29443858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_aio_return); 29453858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_aio_suspend); 29463858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_aio_cancel); 29473858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_aio_error); 29483858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_aio_fsync); 29493858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_aio_read); 29503858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_aio_write); 29513858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_aio_waitcomplete); 29523858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_lio_listio); 29533858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_oaio_read); 29543858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_oaio_write); 29553858a1f4SJohn Baldwin SYSCALL32_MODULE_HELPER(freebsd32_olio_listio); 29563858a1f4SJohn Baldwin #endif 2957