1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2de57606cSSage Weil #ifndef _FS_CEPH_SUPER_H 3de57606cSSage Weil #define _FS_CEPH_SUPER_H 4de57606cSSage Weil 53d14c5d2SYehuda Sadeh #include <linux/ceph/ceph_debug.h> 6de57606cSSage Weil 7de57606cSSage Weil #include <asm/unaligned.h> 8de57606cSSage Weil #include <linux/backing-dev.h> 9de57606cSSage Weil #include <linux/completion.h> 10de57606cSSage Weil #include <linux/exportfs.h> 11de57606cSSage Weil #include <linux/fs.h> 12de57606cSSage Weil #include <linux/mempool.h> 13de57606cSSage Weil #include <linux/pagemap.h> 14de57606cSSage Weil #include <linux/wait.h> 15f1a3d572SStephen Rothwell #include <linux/writeback.h> 165a0e3ad6STejun Heo #include <linux/slab.h> 17c969d9bfSGuangliang Zhao #include <linux/posix_acl.h> 18805692d0SElena Reshetova #include <linux/refcount.h> 19668959a5SJeff Layton #include <linux/security.h> 20bc899ee1SDavid Howells #include <linux/netfs.h> 21bc899ee1SDavid Howells #include <linux/fscache.h> 224868e537SXiubo Li #include <linux/hashtable.h> 23de57606cSSage Weil 243d14c5d2SYehuda Sadeh #include <linux/ceph/libceph.h> 256b5717bdSJeff Layton #include "crypto.h" 26de57606cSSage Weil 27de57606cSSage Weil /* large granularity for statfs utilization stats to facilitate 28de57606cSSage Weil * large volume sizes on 32-bit machines. */ 2992a49fb0SSage Weil #define CEPH_BLOCK_SHIFT 22 /* 4 MB */ 30de57606cSSage Weil #define CEPH_BLOCK (1 << CEPH_BLOCK_SHIFT) 318e55ba8cSKotresh HR #define CEPH_4K_BLOCK_SHIFT 12 /* 4 KB */ 32de57606cSSage Weil 330b98acd6SIlya Dryomov #define CEPH_MOUNT_OPT_CLEANRECOVER (1<<1) /* auto reonnect (clean mode) after blocklisted */ 343d14c5d2SYehuda Sadeh #define CEPH_MOUNT_OPT_DIRSTAT (1<<4) /* `cat dirname` for stats */ 353d14c5d2SYehuda Sadeh #define CEPH_MOUNT_OPT_RBYTES (1<<5) /* dir st_bytes = rbytes */ 363d14c5d2SYehuda Sadeh #define CEPH_MOUNT_OPT_NOASYNCREADDIR (1<<7) /* no dcache readdir */ 37ad1fee96SYehuda Sadeh #define CEPH_MOUNT_OPT_INO32 (1<<8) /* 32 bit inos */ 38a40dc6ccSSage Weil #define CEPH_MOUNT_OPT_DCACHE (1<<9) /* use dcache for readdir etc */ 3999ccbd22SMilosz Tanski #define CEPH_MOUNT_OPT_FSCACHE (1<<10) /* use fscache */ 4010183a69SYan, Zheng #define CEPH_MOUNT_OPT_NOPOOLPERM (1<<11) /* no pool permission check */ 41e9e427f0SYan, Zheng #define CEPH_MOUNT_OPT_MOUNTWAIT (1<<12) /* mount waits if no mds is up */ 429122eed5SLuis Henriques #define CEPH_MOUNT_OPT_NOQUOTADF (1<<13) /* no root dir quota in statfs */ 43ea4cdc54SLuis Henriques #define CEPH_MOUNT_OPT_NOCOPYFROM (1<<14) /* don't use RADOS 'copy-from' op */ 442ccb4546SJeff Layton #define CEPH_MOUNT_OPT_ASYNC_DIROPS (1<<15) /* allow async directory ops */ 4594cc0877SJeff Layton #define CEPH_MOUNT_OPT_NOPAGECACHE (1<<16) /* bypass pagecache altogether */ 4603bc06c7SJeff Layton #define CEPH_MOUNT_OPT_SPARSEREAD (1<<17) /* always do sparse reads */ 476a259382SSage Weil 486f9718feSLuis Henriques #define CEPH_MOUNT_OPT_DEFAULT \ 496f9718feSLuis Henriques (CEPH_MOUNT_OPT_DCACHE | \ 50f7a67b46SJeff Layton CEPH_MOUNT_OPT_NOCOPYFROM | \ 51f7a67b46SJeff Layton CEPH_MOUNT_OPT_ASYNC_DIROPS) 52de57606cSSage Weil 533d14c5d2SYehuda Sadeh #define ceph_set_mount_opt(fsc, opt) \ 542ccb4546SJeff Layton (fsc)->mount_options->flags |= CEPH_MOUNT_OPT_##opt 552ccb4546SJeff Layton #define ceph_clear_mount_opt(fsc, opt) \ 562ccb4546SJeff Layton (fsc)->mount_options->flags &= ~CEPH_MOUNT_OPT_##opt 573d14c5d2SYehuda Sadeh #define ceph_test_mount_opt(fsc, opt) \ 583d14c5d2SYehuda Sadeh (!!((fsc)->mount_options->flags & CEPH_MOUNT_OPT_##opt)) 59de57606cSSage Weil 60aa187926SYan, Zheng /* max size of osd read request, limited by libceph */ 61aa187926SYan, Zheng #define CEPH_MAX_READ_SIZE CEPH_MSG_MAX_DATA_LEN 6295cca2b4SYan, Zheng /* osd has a configurable limitaion of max write size. 6395cca2b4SYan, Zheng * CEPH_MSG_MAX_DATA_LEN should be small enough. */ 6495cca2b4SYan, Zheng #define CEPH_MAX_WRITE_SIZE CEPH_MSG_MAX_DATA_LEN 657c94ba27SAndreas Gerstmayr #define CEPH_RASIZE_DEFAULT (8192*1024) /* max readahead */ 663d14c5d2SYehuda Sadeh #define CEPH_MAX_READDIR_DEFAULT 1024 673d14c5d2SYehuda Sadeh #define CEPH_MAX_READDIR_BYTES_DEFAULT (512*1024) 683d14c5d2SYehuda Sadeh #define CEPH_SNAPDIRNAME_DEFAULT ".snap" 69de57606cSSage Weil 704214fb15SYan, Zheng /* 714214fb15SYan, Zheng * Delay telling the MDS we no longer want caps, in case we reopen 724214fb15SYan, Zheng * the file. Delay a minimum amount of time, even if we send a cap 734214fb15SYan, Zheng * message for some other reason. Otherwise, take the oppotunity to 744214fb15SYan, Zheng * update the mds to avoid sending another message later. 754214fb15SYan, Zheng */ 764214fb15SYan, Zheng #define CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT 5 /* cap release delay */ 774214fb15SYan, Zheng #define CEPH_CAPS_WANTED_DELAY_MAX_DEFAULT 60 /* cap release delay */ 784214fb15SYan, Zheng 793d14c5d2SYehuda Sadeh struct ceph_mount_options { 80ad8c28a9SJeff Layton unsigned int flags; 813d14c5d2SYehuda Sadeh 82ad8c28a9SJeff Layton unsigned int wsize; /* max write size */ 83ad8c28a9SJeff Layton unsigned int rsize; /* max read size */ 84ad8c28a9SJeff Layton unsigned int rasize; /* max readahead */ 85ad8c28a9SJeff Layton unsigned int congestion_kb; /* max writeback in flight */ 86ad8c28a9SJeff Layton unsigned int caps_wanted_delay_min, caps_wanted_delay_max; 87fe33032dSYan, Zheng int caps_max; 88ad8c28a9SJeff Layton unsigned int max_readdir; /* max readdir result (entries) */ 89ad8c28a9SJeff Layton unsigned int max_readdir_bytes; /* max readdir result (bytes) */ 903d14c5d2SYehuda Sadeh 917b19b4dbSVenky Shankar bool new_dev_syntax; 927b19b4dbSVenky Shankar 933d14c5d2SYehuda Sadeh /* 943d14c5d2SYehuda Sadeh * everything above this point can be memcmp'd; everything below 953d14c5d2SYehuda Sadeh * is handled in compare_mount_options() 963d14c5d2SYehuda Sadeh */ 973d14c5d2SYehuda Sadeh 98de57606cSSage Weil char *snapdir_name; /* default ".snap" */ 99430afbadSYan, Zheng char *mds_namespace; /* default NULL */ 100b27a939eSIlya Dryomov char *server_path; /* default NULL (means "/") */ 1011d8f8360SYan, Zheng char *fscache_uniq; /* default NULL */ 1027b19b4dbSVenky Shankar char *mon_addr; 1036b5717bdSJeff Layton struct fscrypt_dummy_policy dummy_enc_policy; 104de57606cSSage Weil }; 105de57606cSSage Weil 106b38b17b6SXiubo Li /* mount state */ 107b38b17b6SXiubo Li enum { 108b38b17b6SXiubo Li CEPH_MOUNT_MOUNTING, 109b38b17b6SXiubo Li CEPH_MOUNT_MOUNTED, 110b38b17b6SXiubo Li CEPH_MOUNT_UNMOUNTING, 111b38b17b6SXiubo Li CEPH_MOUNT_UNMOUNTED, 112b38b17b6SXiubo Li CEPH_MOUNT_SHUTDOWN, 113b38b17b6SXiubo Li CEPH_MOUNT_RECOVER, 114a68e564aSXiubo Li CEPH_MOUNT_FENCE_IO, 115b38b17b6SXiubo Li }; 116b38b17b6SXiubo Li 1174868e537SXiubo Li #define CEPH_ASYNC_CREATE_CONFLICT_BITS 8 1184868e537SXiubo Li 1193d14c5d2SYehuda Sadeh struct ceph_fs_client { 120de57606cSSage Weil struct super_block *sb; 121de57606cSSage Weil 12218f473b3SXiubo Li struct list_head metric_wakeup; 12318f473b3SXiubo Li 1243d14c5d2SYehuda Sadeh struct ceph_mount_options *mount_options; 1253d14c5d2SYehuda Sadeh struct ceph_client *client; 1263d14c5d2SYehuda Sadeh 127aa5c7910SJeff Layton int mount_state; 12881f148a9SYan, Zheng 1290b98acd6SIlya Dryomov bool blocklisted; 130131d7eb4SYan, Zheng 13178beb0ffSLuis Henriques bool have_copy_from2; 13278beb0ffSLuis Henriques 13381f148a9SYan, Zheng u32 filp_gen; 134719784baSChengguang Xu loff_t max_file_size; 13585ccce43SSage Weil 1363d14c5d2SYehuda Sadeh struct ceph_mds_client *mdsc; 137de57606cSSage Weil 138e3ec8d68SYan, Zheng atomic_long_t writeback_count; 139503d4fa6SNeilBrown bool write_congested; 140e3ec8d68SYan, Zheng 1411cf89a8dSYan, Zheng struct workqueue_struct *inode_wq; 142e3ec8d68SYan, Zheng struct workqueue_struct *cap_wq; 143de57606cSSage Weil 1444868e537SXiubo Li DECLARE_HASHTABLE(async_unlink_conflict, CEPH_ASYNC_CREATE_CONFLICT_BITS); 1454868e537SXiubo Li spinlock_t async_unlink_conflict_lock; 1464868e537SXiubo Li 1470743304dSSage Weil #ifdef CONFIG_DEBUG_FS 1483d14c5d2SYehuda Sadeh struct dentry *debugfs_dentry_lru, *debugfs_caps; 1492baba250SYehuda Sadeh struct dentry *debugfs_congestion_kb; 15006edf046SSage Weil struct dentry *debugfs_bdi; 1513d14c5d2SYehuda Sadeh struct dentry *debugfs_mdsc, *debugfs_mdsmap; 152247b1f19SXiubo Li struct dentry *debugfs_status; 15314ed9703SJohn Spray struct dentry *debugfs_mds_sessions; 154cbed4ff7SLuís Henriques struct dentry *debugfs_metrics_dir; 1550743304dSSage Weil #endif 15699ccbd22SMilosz Tanski 15799ccbd22SMilosz Tanski #ifdef CONFIG_CEPH_FSCACHE 158400e1286SJeff Layton struct fscache_volume *fscache; 15999ccbd22SMilosz Tanski #endif 1606b5717bdSJeff Layton #ifdef CONFIG_FS_ENCRYPTION 1616b5717bdSJeff Layton struct fscrypt_dummy_policy fsc_dummy_enc_policy; 1626b5717bdSJeff Layton #endif 163de57606cSSage Weil }; 164de57606cSSage Weil 165de57606cSSage Weil /* 166de57606cSSage Weil * File i/o capability. This tracks shared state with the metadata 167de57606cSSage Weil * server that allows us to cache or writeback attributes or to read 168de57606cSSage Weil * and write data. For any given inode, we should have one or more 169de57606cSSage Weil * capabilities, one issued by each metadata server, and our 170de57606cSSage Weil * cumulative access is the OR of all issued capabilities. 171de57606cSSage Weil * 172de57606cSSage Weil * Each cap is referenced by the inode's i_caps rbtree and by per-mds 173de57606cSSage Weil * session capability lists. 174de57606cSSage Weil */ 175de57606cSSage Weil struct ceph_cap { 176de57606cSSage Weil struct ceph_inode_info *ci; 177de57606cSSage Weil struct rb_node ci_node; /* per-ci cap tree */ 178de57606cSSage Weil struct ceph_mds_session *session; 179de57606cSSage Weil struct list_head session_caps; /* per-session caplist */ 180de57606cSSage Weil u64 cap_id; /* unique cap id (mds provided) */ 181745a8e3bSYan, Zheng union { 182745a8e3bSYan, Zheng /* in-use caps */ 183745a8e3bSYan, Zheng struct { 184de57606cSSage Weil int issued; /* latest, from the mds */ 185745a8e3bSYan, Zheng int implemented; /* implemented superset of 186745a8e3bSYan, Zheng issued (for revocation) */ 187c74d79afSJeff Layton int mds; /* mds index for this cap */ 188c74d79afSJeff Layton int mds_wanted; /* caps wanted from this mds */ 189745a8e3bSYan, Zheng }; 190745a8e3bSYan, Zheng /* caps to release */ 191745a8e3bSYan, Zheng struct { 192745a8e3bSYan, Zheng u64 cap_ino; 193745a8e3bSYan, Zheng int queue_release; 194745a8e3bSYan, Zheng }; 195745a8e3bSYan, Zheng }; 196685f9a5dSSage Weil u32 seq, issue_seq, mseq; 197685f9a5dSSage Weil u32 cap_gen; /* active/stale cycle */ 198de57606cSSage Weil unsigned long last_used; 199de57606cSSage Weil struct list_head caps_item; 200de57606cSSage Weil }; 201de57606cSSage Weil 202a0d93e32SYan, Zheng #define CHECK_CAPS_AUTHONLY 1 /* only check auth cap */ 203a0d93e32SYan, Zheng #define CHECK_CAPS_FLUSH 2 /* flush any dirty caps */ 204a0d93e32SYan, Zheng #define CHECK_CAPS_NOINVAL 4 /* don't invalidate pagecache */ 205de57606cSSage Weil 2060e294387SYan, Zheng struct ceph_cap_flush { 2070e294387SYan, Zheng u64 tid; 208b2f9fa1fSXiubo Li int caps; 209c8799fc4SYan, Zheng bool wake; /* wake up flush waiters when finish ? */ 210b2f9fa1fSXiubo Li bool is_capsnap; /* true means capsnap */ 2110e294387SYan, Zheng struct list_head g_list; // global 2120e294387SYan, Zheng struct list_head i_list; // per inode 2130e294387SYan, Zheng }; 2140e294387SYan, Zheng 215de57606cSSage Weil /* 216de57606cSSage Weil * Snapped cap state that is pending flush to mds. When a snapshot occurs, 217de57606cSSage Weil * we first complete any in-process sync writes and writeback any dirty 218de57606cSSage Weil * data before flushing the snapped state (tracked here) back to the MDS. 219de57606cSSage Weil */ 220de57606cSSage Weil struct ceph_cap_snap { 221805692d0SElena Reshetova refcount_t nref; 2220e294387SYan, Zheng struct list_head ci_item; 223de57606cSSage Weil 2240e294387SYan, Zheng struct ceph_cap_flush cap_flush; 2250e294387SYan, Zheng 2260e294387SYan, Zheng u64 follows; 227de57606cSSage Weil int issued, dirty; 228de57606cSSage Weil struct ceph_snap_context *context; 229de57606cSSage Weil 2305706b27dSAl Viro umode_t mode; 23105cb11c1SEric W. Biederman kuid_t uid; 23205cb11c1SEric W. Biederman kgid_t gid; 233de57606cSSage Weil 2344a625be4SSage Weil struct ceph_buffer *xattr_blob; 235de57606cSSage Weil u64 xattr_version; 236de57606cSSage Weil 237de57606cSSage Weil u64 size; 238176c77c9SJeff Layton u64 change_attr; 239ec62b894SJeff Layton struct timespec64 mtime, atime, ctime, btime; 240de57606cSSage Weil u64 time_warp_seq; 2415f743e45SYan, Zheng u64 truncate_size; 2425f743e45SYan, Zheng u32 truncate_seq; 243de57606cSSage Weil int writing; /* a sync write is still in progress */ 244de57606cSSage Weil int dirty_pages; /* dirty pages awaiting writeback */ 245e20d258dSYan, Zheng bool inline_data; 24686056090SYan, Zheng bool need_flush; 247de57606cSSage Weil }; 248de57606cSSage Weil 249de57606cSSage Weil static inline void ceph_put_cap_snap(struct ceph_cap_snap *capsnap) 250de57606cSSage Weil { 251805692d0SElena Reshetova if (refcount_dec_and_test(&capsnap->nref)) { 2524a625be4SSage Weil if (capsnap->xattr_blob) 2534a625be4SSage Weil ceph_buffer_put(capsnap->xattr_blob); 254ab58a5a1SXiubo Li kmem_cache_free(ceph_cap_snap_cachep, capsnap); 255de57606cSSage Weil } 2564a625be4SSage Weil } 257de57606cSSage Weil 258de57606cSSage Weil /* 259de57606cSSage Weil * The frag tree describes how a directory is fragmented, potentially across 260de57606cSSage Weil * multiple metadata servers. It is also used to indicate points where 261de57606cSSage Weil * metadata authority is delegated, and whether/where metadata is replicated. 262de57606cSSage Weil * 263de57606cSSage Weil * A _leaf_ frag will be present in the i_fragtree IFF there is 264de57606cSSage Weil * delegation info. That is, if mds >= 0 || ndist > 0. 265de57606cSSage Weil */ 266de57606cSSage Weil #define CEPH_MAX_DIRFRAG_REP 4 267de57606cSSage Weil 268de57606cSSage Weil struct ceph_inode_frag { 269de57606cSSage Weil struct rb_node node; 270de57606cSSage Weil 271de57606cSSage Weil /* fragtree state */ 272de57606cSSage Weil u32 frag; 273de57606cSSage Weil int split_by; /* i.e. 2^(split_by) children */ 274de57606cSSage Weil 275de57606cSSage Weil /* delegation and replication info */ 276de57606cSSage Weil int mds; /* -1 if same authority as parent */ 277de57606cSSage Weil int ndist; /* >0 if replicated */ 278de57606cSSage Weil int dist[CEPH_MAX_DIRFRAG_REP]; 279de57606cSSage Weil }; 280de57606cSSage Weil 281de57606cSSage Weil /* 282de57606cSSage Weil * We cache inode xattrs as an encoded blob until they are first used, 283de57606cSSage Weil * at which point we parse them into an rbtree. 284de57606cSSage Weil */ 285de57606cSSage Weil struct ceph_inode_xattr { 286de57606cSSage Weil struct rb_node node; 287de57606cSSage Weil 288de57606cSSage Weil const char *name; 289de57606cSSage Weil int name_len; 290de57606cSSage Weil const char *val; 291de57606cSSage Weil int val_len; 292de57606cSSage Weil int dirty; 293de57606cSSage Weil 294de57606cSSage Weil int should_free_name; 295de57606cSSage Weil int should_free_val; 296de57606cSSage Weil }; 297de57606cSSage Weil 2983d14c5d2SYehuda Sadeh /* 2993d14c5d2SYehuda Sadeh * Ceph dentry state 3003d14c5d2SYehuda Sadeh */ 3013d14c5d2SYehuda Sadeh struct ceph_dentry_info { 30237c4efc1SYan, Zheng struct dentry *dentry; 3033d14c5d2SYehuda Sadeh struct ceph_mds_session *lease_session; 30437c4efc1SYan, Zheng struct list_head lease_list; 3054868e537SXiubo Li struct hlist_node hnode; 3064868e537SXiubo Li unsigned long flags; 30797aeb6bfSYan, Zheng int lease_shared_gen; 30897aeb6bfSYan, Zheng u32 lease_gen; 3093d14c5d2SYehuda Sadeh u32 lease_seq; 3103d14c5d2SYehuda Sadeh unsigned long lease_renew_after, lease_renew_from; 3119b16f03cSMiklos Szeredi unsigned long time; 3123d14c5d2SYehuda Sadeh u64 offset; 3133d14c5d2SYehuda Sadeh }; 3143d14c5d2SYehuda Sadeh 3154868e537SXiubo Li #define CEPH_DENTRY_REFERENCED (1 << 0) 3164868e537SXiubo Li #define CEPH_DENTRY_LEASE_LIST (1 << 1) 3174868e537SXiubo Li #define CEPH_DENTRY_SHRINK_LIST (1 << 2) 3184868e537SXiubo Li #define CEPH_DENTRY_PRIMARY_LINK (1 << 3) 3194868e537SXiubo Li #define CEPH_DENTRY_ASYNC_UNLINK_BIT (4) 3204868e537SXiubo Li #define CEPH_DENTRY_ASYNC_UNLINK (1 << CEPH_DENTRY_ASYNC_UNLINK_BIT) 32100061645SXiubo Li #define CEPH_DENTRY_ASYNC_CREATE_BIT (5) 32200061645SXiubo Li #define CEPH_DENTRY_ASYNC_CREATE (1 << CEPH_DENTRY_ASYNC_CREATE_BIT) 32337c4efc1SYan, Zheng 324de57606cSSage Weil struct ceph_inode_xattrs_info { 325de57606cSSage Weil /* 326de57606cSSage Weil * (still encoded) xattr blob. we avoid the overhead of parsing 327de57606cSSage Weil * this until someone actually calls getxattr, etc. 328de57606cSSage Weil * 329de57606cSSage Weil * blob->vec.iov_len == 4 implies there are no xattrs; blob == 330de57606cSSage Weil * NULL means we don't know. 331de57606cSSage Weil */ 332de57606cSSage Weil struct ceph_buffer *blob, *prealloc_blob; 333de57606cSSage Weil 334de57606cSSage Weil struct rb_root index; 335de57606cSSage Weil bool dirty; 336de57606cSSage Weil int count; 337de57606cSSage Weil int names_size; 338de57606cSSage Weil int vals_size; 339de57606cSSage Weil u64 version, index_version; 340de57606cSSage Weil }; 341de57606cSSage Weil 342de57606cSSage Weil /* 343de57606cSSage Weil * Ceph inode. 344de57606cSSage Weil */ 345de57606cSSage Weil struct ceph_inode_info { 346874c8ca1SDavid Howells struct netfs_inode netfs; /* Netfslib context and vfs inode */ 347de57606cSSage Weil struct ceph_vino i_vino; /* ceph ino + snap */ 348de57606cSSage Weil 349be655596SSage Weil spinlock_t i_ceph_lock; 350be655596SSage Weil 351de57606cSSage Weil u64 i_version; 35231c542a1SYan, Zheng u64 i_inline_version; 353de57606cSSage Weil u32 i_time_warp_seq; 354de57606cSSage Weil 355891f3f5aSJeff Layton unsigned long i_ceph_flags; 356fdd4e158SYan, Zheng atomic64_t i_release_count; 357fdd4e158SYan, Zheng atomic64_t i_ordered_count; 358fdd4e158SYan, Zheng atomic64_t i_complete_seq[2]; 359de57606cSSage Weil 3606c0f3af7SSage Weil struct ceph_dir_layout i_dir_layout; 361de57606cSSage Weil struct ceph_file_layout i_layout; 362785892feSJeff Layton struct ceph_file_layout i_cached_layout; // for async creates 363de57606cSSage Weil char *i_symlink; 364de57606cSSage Weil 365de57606cSSage Weil /* for dirs */ 3669bbeab41SArnd Bergmann struct timespec64 i_rctime; 367e7f72952SYanhu Cao u64 i_rbytes, i_rfiles, i_rsubdirs, i_rsnaps; 368de57606cSSage Weil u64 i_files, i_subdirs; 369de57606cSSage Weil 370fb18a575SLuis Henriques /* quotas */ 371fb18a575SLuis Henriques u64 i_max_bytes, i_max_files; 372fb18a575SLuis Henriques 37308796873SYan, Zheng s32 i_dir_pin; 37408796873SYan, Zheng 375de57606cSSage Weil struct rb_root i_fragtree; 3761b1bc16dSYan, Zheng int i_fragtree_nsplits; 377de57606cSSage Weil struct mutex i_fragtree_mutex; 378de57606cSSage Weil 379de57606cSSage Weil struct ceph_inode_xattrs_info i_xattrs; 380de57606cSSage Weil 381be655596SSage Weil /* capabilities. protected _both_ by i_ceph_lock and cap->session's 382de57606cSSage Weil * s_mutex. */ 383de57606cSSage Weil struct rb_root i_caps; /* cap list */ 384de57606cSSage Weil struct ceph_cap *i_auth_cap; /* authoritative cap, if any */ 385de57606cSSage Weil unsigned i_dirty_caps, i_flushing_caps; /* mask of dirtied fields */ 3861cf03a68SJeff Layton 3871cf03a68SJeff Layton /* 388f1f565a2SRandy Dunlap * Link to the auth cap's session's s_cap_dirty list. s_cap_dirty 3891cf03a68SJeff Layton * is protected by the mdsc->cap_dirty_lock, but each individual item 3901cf03a68SJeff Layton * is also protected by the inode's i_ceph_lock. Walking s_cap_dirty 3911cf03a68SJeff Layton * requires the mdsc->cap_dirty_lock. List presence for an item can 3921cf03a68SJeff Layton * be tested under the i_ceph_lock. Changing anything requires both. 3934fb5dda3SJeff Layton */ 3941cf03a68SJeff Layton struct list_head i_dirty_item; 3951cf03a68SJeff Layton 3961cf03a68SJeff Layton /* 397829ad4dbSJeff Layton * Link to session's s_cap_flushing list. Protected in a similar 398829ad4dbSJeff Layton * fashion to i_dirty_item, but also by the s_mutex for changes. The 399829ad4dbSJeff Layton * s_cap_flushing list can be walked while holding either the s_mutex 400829ad4dbSJeff Layton * or msdc->cap_dirty_lock. List presence can also be checked while 401829ad4dbSJeff Layton * holding the i_ceph_lock for this inode. 4021cf03a68SJeff Layton */ 4031cf03a68SJeff Layton struct list_head i_flushing_item; 4041cf03a68SJeff Layton 405de57606cSSage Weil /* we need to track cap writeback on a per-cap-bit basis, to allow 406de57606cSSage Weil * overlapping, pipelined cap flushes to the mds. we can probably 407de57606cSSage Weil * reduce the tid to 8 bits if we're concerned about inode size. */ 408f66fd9f0SYan, Zheng struct ceph_cap_flush *i_prealloc_cap_flush; 409e4500b5eSYan, Zheng struct list_head i_cap_flush_list; 410de57606cSSage Weil wait_queue_head_t i_cap_wq; /* threads waiting on a capability */ 411de57606cSSage Weil unsigned long i_hold_caps_max; /* jiffies */ 412de57606cSSage Weil struct list_head i_cap_delay_list; /* for delayed cap release to mds */ 413de57606cSSage Weil struct ceph_cap_reservation i_cap_migration_resv; 414de57606cSSage Weil struct list_head i_cap_snaps; /* snapped state pending flush to mds */ 4157d8cb26dSSage Weil struct ceph_snap_context *i_head_snapc; /* set if wr_buffer_head > 0 or 4167d8cb26dSSage Weil dirty|flushing caps */ 417de57606cSSage Weil unsigned i_snap_caps; /* cap bits for snapped files */ 418de57606cSSage Weil 419719a2514SYan, Zheng unsigned long i_last_rd; 420719a2514SYan, Zheng unsigned long i_last_wr; 421774a6a11SYan, Zheng int i_nr_by_mode[CEPH_FILE_MODE_BITS]; /* open file counts */ 422de57606cSSage Weil 423b0d7c223SYan, Zheng struct mutex i_truncate_mutex; 424de57606cSSage Weil u32 i_truncate_seq; /* last truncate to smaller size */ 425de57606cSSage Weil u64 i_truncate_size; /* and the size we last truncated down to */ 426de57606cSSage Weil int i_truncate_pending; /* still need to call vmtruncate */ 4275c64737dSXiubo Li /* 4285c64737dSXiubo Li * For none fscrypt case it equals to i_truncate_size or it will 4295c64737dSXiubo Li * equals to fscrypt_file_size 4305c64737dSXiubo Li */ 4315c64737dSXiubo Li u64 i_truncate_pagecache_size; 432de57606cSSage Weil 433de57606cSSage Weil u64 i_max_size; /* max file size authorized by mds */ 434de57606cSSage Weil u64 i_reported_size; /* (max_)size reported to or requested of mds */ 435de57606cSSage Weil u64 i_wanted_max_size; /* offset we'd like to write too */ 436de57606cSSage Weil u64 i_requested_max_size; /* max_size we've requested */ 437de57606cSSage Weil 438de57606cSSage Weil /* held references to caps */ 439de57606cSSage Weil int i_pin_ref; 440f85122afSJeff Layton int i_rd_ref, i_rdcache_ref, i_wr_ref, i_wb_ref, i_fx_ref; 441de57606cSSage Weil int i_wrbuffer_ref, i_wrbuffer_ref_head; 44289aa5930SYan, Zheng atomic_t i_filelock_ref; 44397aeb6bfSYan, Zheng atomic_t i_shared_gen; /* increment each time we get FILE_SHARED */ 444cd045cb4SSage Weil u32 i_rdcache_gen; /* incremented each time we get FILE_CACHE. */ 445de57606cSSage Weil u32 i_rdcache_revoking; /* RDCACHE gen to async invalidate, if any */ 446de57606cSSage Weil 447de57606cSSage Weil struct list_head i_unsafe_dirops; /* uncommitted mds dir ops */ 44868cd5b4bSYan, Zheng struct list_head i_unsafe_iops; /* uncommitted mds inode ops */ 449de57606cSSage Weil spinlock_t i_unsafe_lock; 450de57606cSSage Weil 45175c9627eSYan, Zheng union { 452de57606cSSage Weil struct ceph_snap_realm *i_snap_realm; /* snap realm (if caps) */ 45375c9627eSYan, Zheng struct ceph_snapid_map *i_snapid_map; /* snapid -> dev_t */ 45475c9627eSYan, Zheng }; 455de57606cSSage Weil struct list_head i_snap_realm_item; 456de57606cSSage Weil struct list_head i_snap_flush_item; 457245ce991SJeff Layton struct timespec64 i_btime; 458193e7b37SDavid Disseldorp struct timespec64 i_snap_btime; 459de57606cSSage Weil 4601cf89a8dSYan, Zheng struct work_struct i_work; 4611cf89a8dSYan, Zheng unsigned long i_work_mask; 4622d332d5bSJeff Layton 4632d332d5bSJeff Layton #ifdef CONFIG_FS_ENCRYPTION 4642d332d5bSJeff Layton u32 fscrypt_auth_len; 4652d332d5bSJeff Layton u32 fscrypt_file_len; 4662d332d5bSJeff Layton u8 *fscrypt_auth; 4672d332d5bSJeff Layton u8 *fscrypt_file; 4682d332d5bSJeff Layton #endif 469de57606cSSage Weil }; 470de57606cSSage Weil 47123ee27dcSXiubo Li struct ceph_netfs_request_data { 47223ee27dcSXiubo Li int caps; 47323ee27dcSXiubo Li 47423ee27dcSXiubo Li /* 47523ee27dcSXiubo Li * Maximum size of a file readahead request. 47623ee27dcSXiubo Li * The fadvise could update the bdi's default ra_pages. 47723ee27dcSXiubo Li */ 47823ee27dcSXiubo Li unsigned int file_ra_pages; 47923ee27dcSXiubo Li 48023ee27dcSXiubo Li /* Set it if fadvise disables file readahead entirely */ 48123ee27dcSXiubo Li bool file_ra_disabled; 48223ee27dcSXiubo Li }; 48323ee27dcSXiubo Li 484721d5c13SJeff Layton static inline struct ceph_inode_info * 485721d5c13SJeff Layton ceph_inode(const struct inode *inode) 486de57606cSSage Weil { 487874c8ca1SDavid Howells return container_of(inode, struct ceph_inode_info, netfs.inode); 488de57606cSSage Weil } 489de57606cSSage Weil 490721d5c13SJeff Layton static inline struct ceph_fs_client * 4915995d90dSXiubo Li ceph_inode_to_fs_client(const struct inode *inode) 492ad1fee96SYehuda Sadeh { 493ad1fee96SYehuda Sadeh return (struct ceph_fs_client *)inode->i_sb->s_fs_info; 494ad1fee96SYehuda Sadeh } 495ad1fee96SYehuda Sadeh 496721d5c13SJeff Layton static inline struct ceph_fs_client * 4975995d90dSXiubo Li ceph_sb_to_fs_client(const struct super_block *sb) 498ad1fee96SYehuda Sadeh { 499ad1fee96SYehuda Sadeh return (struct ceph_fs_client *)sb->s_fs_info; 500ad1fee96SYehuda Sadeh } 501ad1fee96SYehuda Sadeh 5022678da88SXiubo Li static inline struct ceph_mds_client * 5032678da88SXiubo Li ceph_sb_to_mdsc(const struct super_block *sb) 5042678da88SXiubo Li { 5055995d90dSXiubo Li return (struct ceph_mds_client *)ceph_sb_to_fs_client(sb)->mdsc; 5062678da88SXiubo Li } 5072678da88SXiubo Li 50838d46409SXiubo Li static inline struct ceph_client * 50938d46409SXiubo Li ceph_inode_to_client(const struct inode *inode) 51038d46409SXiubo Li { 51138d46409SXiubo Li return (struct ceph_client *)ceph_inode_to_fs_client(inode)->client; 51238d46409SXiubo Li } 51338d46409SXiubo Li 514721d5c13SJeff Layton static inline struct ceph_vino 515721d5c13SJeff Layton ceph_vino(const struct inode *inode) 5163d14c5d2SYehuda Sadeh { 5173d14c5d2SYehuda Sadeh return ceph_inode(inode)->i_vino; 5183d14c5d2SYehuda Sadeh } 5193d14c5d2SYehuda Sadeh 520ebce3eb2SJeff Layton static inline u32 ceph_ino_to_ino32(u64 vino) 521ad1fee96SYehuda Sadeh { 5223310f754SAmon Ott u32 ino = vino & 0xffffffff; 5233310f754SAmon Ott ino ^= vino >> 32; 524ad1fee96SYehuda Sadeh if (!ino) 525a661fc56SAmon Ott ino = 2; 526ad1fee96SYehuda Sadeh return ino; 527ad1fee96SYehuda Sadeh } 528ad1fee96SYehuda Sadeh 529ad1fee96SYehuda Sadeh /* 530ebce3eb2SJeff Layton * Inode numbers in cephfs are 64 bits, but inode->i_ino is 32-bits on 531ebce3eb2SJeff Layton * some arches. We generally do not use this value inside the ceph driver, but 532ebce3eb2SJeff Layton * we do want to set it to something, so that generic vfs code has an 533ebce3eb2SJeff Layton * appropriate value for tracepoints and the like. 5343d14c5d2SYehuda Sadeh */ 535ebce3eb2SJeff Layton static inline ino_t ceph_vino_to_ino_t(struct ceph_vino vino) 5363d14c5d2SYehuda Sadeh { 537ebce3eb2SJeff Layton if (sizeof(ino_t) == sizeof(u32)) 5383310f754SAmon Ott return ceph_ino_to_ino32(vino.ino); 5393310f754SAmon Ott return (ino_t)vino.ino; 5403d14c5d2SYehuda Sadeh } 5413d14c5d2SYehuda Sadeh 5423d14c5d2SYehuda Sadeh /* for printf-style formatting */ 5433d14c5d2SYehuda Sadeh #define ceph_vinop(i) ceph_inode(i)->i_vino.ino, ceph_inode(i)->i_vino.snap 5443d14c5d2SYehuda Sadeh 5453d14c5d2SYehuda Sadeh static inline u64 ceph_ino(struct inode *inode) 5463d14c5d2SYehuda Sadeh { 5473d14c5d2SYehuda Sadeh return ceph_inode(inode)->i_vino.ino; 5483d14c5d2SYehuda Sadeh } 549ebce3eb2SJeff Layton 5503d14c5d2SYehuda Sadeh static inline u64 ceph_snap(struct inode *inode) 5513d14c5d2SYehuda Sadeh { 5523d14c5d2SYehuda Sadeh return ceph_inode(inode)->i_vino.snap; 5533d14c5d2SYehuda Sadeh } 5543d14c5d2SYehuda Sadeh 555ebce3eb2SJeff Layton /** 556ebce3eb2SJeff Layton * ceph_present_ino - format an inode number for presentation to userland 557ebce3eb2SJeff Layton * @sb: superblock where the inode lives 558ebce3eb2SJeff Layton * @ino: inode number to (possibly) convert 559ebce3eb2SJeff Layton * 560ebce3eb2SJeff Layton * If the user mounted with the ino32 option, then the 64-bit value needs 561ebce3eb2SJeff Layton * to be converted to something that can fit inside 32 bits. Note that 562ebce3eb2SJeff Layton * internal kernel code never uses this value, so this is entirely for 563ebce3eb2SJeff Layton * userland consumption. 564ebce3eb2SJeff Layton */ 565ebce3eb2SJeff Layton static inline u64 ceph_present_ino(struct super_block *sb, u64 ino) 566ebce3eb2SJeff Layton { 5675995d90dSXiubo Li if (unlikely(ceph_test_mount_opt(ceph_sb_to_fs_client(sb), INO32))) 568ebce3eb2SJeff Layton return ceph_ino_to_ino32(ino); 569ebce3eb2SJeff Layton return ino; 570ebce3eb2SJeff Layton } 571ebce3eb2SJeff Layton 572ebce3eb2SJeff Layton static inline u64 ceph_present_inode(struct inode *inode) 573ebce3eb2SJeff Layton { 574ebce3eb2SJeff Layton return ceph_present_ino(inode->i_sb, ceph_ino(inode)); 575ebce3eb2SJeff Layton } 576ebce3eb2SJeff Layton 5773d14c5d2SYehuda Sadeh static inline int ceph_ino_compare(struct inode *inode, void *data) 5783d14c5d2SYehuda Sadeh { 5793d14c5d2SYehuda Sadeh struct ceph_vino *pvino = (struct ceph_vino *)data; 5803d14c5d2SYehuda Sadeh struct ceph_inode_info *ci = ceph_inode(inode); 5813d14c5d2SYehuda Sadeh return ci->i_vino.ino == pvino->ino && 5823d14c5d2SYehuda Sadeh ci->i_vino.snap == pvino->snap; 5833d14c5d2SYehuda Sadeh } 5843d14c5d2SYehuda Sadeh 585d4f6b31dSJeff Layton /* 586d4f6b31dSJeff Layton * The MDS reserves a set of inodes for its own usage. These should never 587d4f6b31dSJeff Layton * be accessible by clients, and so the MDS has no reason to ever hand these 588d4f6b31dSJeff Layton * out. The range is CEPH_MDS_INO_MDSDIR_OFFSET..CEPH_INO_SYSTEM_BASE. 589d4f6b31dSJeff Layton * 590d4f6b31dSJeff Layton * These come from src/mds/mdstypes.h in the ceph sources. 591d4f6b31dSJeff Layton */ 592d4f6b31dSJeff Layton #define CEPH_MAX_MDS 0x100 593d4f6b31dSJeff Layton #define CEPH_NUM_STRAY 10 594d4f6b31dSJeff Layton #define CEPH_MDS_INO_MDSDIR_OFFSET (1 * CEPH_MAX_MDS) 5950078ea3bSJeff Layton #define CEPH_MDS_INO_LOG_OFFSET (2 * CEPH_MAX_MDS) 596d4f6b31dSJeff Layton #define CEPH_INO_SYSTEM_BASE ((6*CEPH_MAX_MDS) + (CEPH_MAX_MDS * CEPH_NUM_STRAY)) 597d4f6b31dSJeff Layton 598d4f6b31dSJeff Layton static inline bool ceph_vino_is_reserved(const struct ceph_vino vino) 599d4f6b31dSJeff Layton { 6000078ea3bSJeff Layton if (vino.ino >= CEPH_INO_SYSTEM_BASE || 6010078ea3bSJeff Layton vino.ino < CEPH_MDS_INO_MDSDIR_OFFSET) 602d4f6b31dSJeff Layton return false; 6030078ea3bSJeff Layton 6040078ea3bSJeff Layton /* Don't warn on mdsdirs */ 6050078ea3bSJeff Layton WARN_RATELIMIT(vino.ino >= CEPH_MDS_INO_LOG_OFFSET, 6060078ea3bSJeff Layton "Attempt to access reserved inode number 0x%llx", 6070078ea3bSJeff Layton vino.ino); 6080078ea3bSJeff Layton return true; 609d4f6b31dSJeff Layton } 610ebce3eb2SJeff Layton 6113d14c5d2SYehuda Sadeh static inline struct inode *ceph_find_inode(struct super_block *sb, 6123d14c5d2SYehuda Sadeh struct ceph_vino vino) 6133d14c5d2SYehuda Sadeh { 614d4f6b31dSJeff Layton if (ceph_vino_is_reserved(vino)) 615d4f6b31dSJeff Layton return NULL; 616d4f6b31dSJeff Layton 617ebce3eb2SJeff Layton /* 618ebce3eb2SJeff Layton * NB: The hashval will be run through the fs/inode.c hash function 619ebce3eb2SJeff Layton * anyway, so there is no need to squash the inode number down to 620ebce3eb2SJeff Layton * 32-bits first. Just use low-order bits on arches with 32-bit long. 621ebce3eb2SJeff Layton */ 622ebce3eb2SJeff Layton return ilookup5(sb, (unsigned long)vino.ino, ceph_ino_compare, &vino); 6233d14c5d2SYehuda Sadeh } 6243d14c5d2SYehuda Sadeh 6253d14c5d2SYehuda Sadeh 6263d14c5d2SYehuda Sadeh /* 6273d14c5d2SYehuda Sadeh * Ceph inode. 6283d14c5d2SYehuda Sadeh */ 62910183a69SYan, Zheng #define CEPH_I_DIR_ORDERED (1 << 0) /* dentries in dir are ordered */ 63010183a69SYan, Zheng #define CEPH_I_FLUSH (1 << 2) /* do not delay flush of dirty metadata */ 631daca8bdaSJeff Layton #define CEPH_I_POOL_PERM (1 << 3) /* pool rd/wr bits are valid */ 632daca8bdaSJeff Layton #define CEPH_I_POOL_RD (1 << 4) /* can read from pool */ 633daca8bdaSJeff Layton #define CEPH_I_POOL_WR (1 << 5) /* can write to pool */ 634daca8bdaSJeff Layton #define CEPH_I_SEC_INITED (1 << 6) /* security initialized */ 635c0e385b1SYan, Zheng #define CEPH_I_KICK_FLUSH (1 << 7) /* kick flushing caps */ 636c0e385b1SYan, Zheng #define CEPH_I_FLUSH_SNAPS (1 << 8) /* need flush snapss */ 637c0e385b1SYan, Zheng #define CEPH_I_ERROR_WRITE (1 << 9) /* have seen write errors */ 638c0e385b1SYan, Zheng #define CEPH_I_ERROR_FILELOCK (1 << 10) /* have seen file lock errors */ 639c0e385b1SYan, Zheng #define CEPH_I_ODIRECT (1 << 11) /* inode in direct I/O mode */ 640c0e385b1SYan, Zheng #define CEPH_ASYNC_CREATE_BIT (12) /* async create in flight for this */ 641891f3f5aSJeff Layton #define CEPH_I_ASYNC_CREATE (1 << CEPH_ASYNC_CREATE_BIT) 6425d6451b1SJeff Layton #define CEPH_I_SHUTDOWN (1 << 13) /* inode is no longer usable */ 64368c62beeSXiubo Li #define CEPH_I_ASYNC_CHECK_CAPS (1 << 14) /* check caps immediately after async 64468c62beeSXiubo Li creating finishes */ 64526544c62SJeff Layton 64626544c62SJeff Layton /* 6471cf89a8dSYan, Zheng * Masks of ceph inode work. 6481cf89a8dSYan, Zheng */ 649a8810cdcSJeff Layton #define CEPH_I_WORK_WRITEBACK 0 650a8810cdcSJeff Layton #define CEPH_I_WORK_INVALIDATE_PAGES 1 651a8810cdcSJeff Layton #define CEPH_I_WORK_VMTRUNCATE 2 652a8810cdcSJeff Layton #define CEPH_I_WORK_CHECK_CAPS 3 653a8810cdcSJeff Layton #define CEPH_I_WORK_FLUSH_SNAPS 4 6541cf89a8dSYan, Zheng 6551cf89a8dSYan, Zheng /* 65626544c62SJeff Layton * We set the ERROR_WRITE bit when we start seeing write errors on an inode 65726544c62SJeff Layton * and then clear it when they start succeeding. Note that we do a lockless 65826544c62SJeff Layton * check first, and only take the lock if it looks like it needs to be changed. 65926544c62SJeff Layton * The write submission code just takes this as a hint, so we're not too 66026544c62SJeff Layton * worried if a few slip through in either direction. 66126544c62SJeff Layton */ 66226544c62SJeff Layton static inline void ceph_set_error_write(struct ceph_inode_info *ci) 66326544c62SJeff Layton { 66426544c62SJeff Layton if (!(READ_ONCE(ci->i_ceph_flags) & CEPH_I_ERROR_WRITE)) { 66526544c62SJeff Layton spin_lock(&ci->i_ceph_lock); 66626544c62SJeff Layton ci->i_ceph_flags |= CEPH_I_ERROR_WRITE; 66726544c62SJeff Layton spin_unlock(&ci->i_ceph_lock); 66826544c62SJeff Layton } 66926544c62SJeff Layton } 67026544c62SJeff Layton 67126544c62SJeff Layton static inline void ceph_clear_error_write(struct ceph_inode_info *ci) 67226544c62SJeff Layton { 67326544c62SJeff Layton if (READ_ONCE(ci->i_ceph_flags) & CEPH_I_ERROR_WRITE) { 67426544c62SJeff Layton spin_lock(&ci->i_ceph_lock); 67526544c62SJeff Layton ci->i_ceph_flags &= ~CEPH_I_ERROR_WRITE; 67626544c62SJeff Layton spin_unlock(&ci->i_ceph_lock); 67726544c62SJeff Layton } 67826544c62SJeff Layton } 6793d14c5d2SYehuda Sadeh 6802f276c51SYan, Zheng static inline void __ceph_dir_set_complete(struct ceph_inode_info *ci, 681fdd4e158SYan, Zheng long long release_count, 682fdd4e158SYan, Zheng long long ordered_count) 683de57606cSSage Weil { 68474960773SAndrea Parri /* 68574960773SAndrea Parri * Makes sure operations that setup readdir cache (update page 68674960773SAndrea Parri * cache and i_size) are strongly ordered w.r.t. the following 68774960773SAndrea Parri * atomic64_set() operations. 68874960773SAndrea Parri */ 68974960773SAndrea Parri smp_mb(); 690fdd4e158SYan, Zheng atomic64_set(&ci->i_complete_seq[0], release_count); 691fdd4e158SYan, Zheng atomic64_set(&ci->i_complete_seq[1], ordered_count); 692de57606cSSage Weil } 693de57606cSSage Weil 6942f276c51SYan, Zheng static inline void __ceph_dir_clear_complete(struct ceph_inode_info *ci) 695de57606cSSage Weil { 696fdd4e158SYan, Zheng atomic64_inc(&ci->i_release_count); 697fdd4e158SYan, Zheng } 698fdd4e158SYan, Zheng 699fdd4e158SYan, Zheng static inline void __ceph_dir_clear_ordered(struct ceph_inode_info *ci) 700fdd4e158SYan, Zheng { 701fdd4e158SYan, Zheng atomic64_inc(&ci->i_ordered_count); 702de57606cSSage Weil } 703de57606cSSage Weil 7042f276c51SYan, Zheng static inline bool __ceph_dir_is_complete(struct ceph_inode_info *ci) 705de57606cSSage Weil { 706fdd4e158SYan, Zheng return atomic64_read(&ci->i_complete_seq[0]) == 707fdd4e158SYan, Zheng atomic64_read(&ci->i_release_count); 7082f276c51SYan, Zheng } 709de57606cSSage Weil 71070db4f36SYan, Zheng static inline bool __ceph_dir_is_complete_ordered(struct ceph_inode_info *ci) 71170db4f36SYan, Zheng { 712fdd4e158SYan, Zheng return atomic64_read(&ci->i_complete_seq[0]) == 713fdd4e158SYan, Zheng atomic64_read(&ci->i_release_count) && 714fdd4e158SYan, Zheng atomic64_read(&ci->i_complete_seq[1]) == 715fdd4e158SYan, Zheng atomic64_read(&ci->i_ordered_count); 71670db4f36SYan, Zheng } 71770db4f36SYan, Zheng 7182f276c51SYan, Zheng static inline void ceph_dir_clear_complete(struct inode *inode) 7192f276c51SYan, Zheng { 7202f276c51SYan, Zheng __ceph_dir_clear_complete(ceph_inode(inode)); 7212f276c51SYan, Zheng } 7222f276c51SYan, Zheng 72370db4f36SYan, Zheng static inline void ceph_dir_clear_ordered(struct inode *inode) 7242f276c51SYan, Zheng { 725fdd4e158SYan, Zheng __ceph_dir_clear_ordered(ceph_inode(inode)); 726de57606cSSage Weil } 727de57606cSSage Weil 72870db4f36SYan, Zheng static inline bool ceph_dir_is_complete_ordered(struct inode *inode) 72970db4f36SYan, Zheng { 730fdd4e158SYan, Zheng bool ret = __ceph_dir_is_complete_ordered(ceph_inode(inode)); 731fdd4e158SYan, Zheng smp_rmb(); 73270db4f36SYan, Zheng return ret; 73370db4f36SYan, Zheng } 734de57606cSSage Weil 735de57606cSSage Weil /* find a specific frag @f */ 736de57606cSSage Weil extern struct ceph_inode_frag *__ceph_find_frag(struct ceph_inode_info *ci, 737de57606cSSage Weil u32 f); 738de57606cSSage Weil 739de57606cSSage Weil /* 740de57606cSSage Weil * choose fragment for value @v. copy frag content to pfrag, if leaf 741de57606cSSage Weil * exists 742de57606cSSage Weil */ 743de57606cSSage Weil extern u32 ceph_choose_frag(struct ceph_inode_info *ci, u32 v, 744de57606cSSage Weil struct ceph_inode_frag *pfrag, 745de57606cSSage Weil int *found); 746de57606cSSage Weil 7471e9c2eb6SYan, Zheng static inline struct ceph_dentry_info *ceph_dentry(const struct dentry *dentry) 748de57606cSSage Weil { 749de57606cSSage Weil return (struct ceph_dentry_info *)dentry->d_fsdata; 750de57606cSSage Weil } 751de57606cSSage Weil 752de57606cSSage Weil /* 753de57606cSSage Weil * caps helpers 754de57606cSSage Weil */ 755de57606cSSage Weil static inline bool __ceph_is_any_real_caps(struct ceph_inode_info *ci) 756de57606cSSage Weil { 757de57606cSSage Weil return !RB_EMPTY_ROOT(&ci->i_caps); 758de57606cSSage Weil } 759de57606cSSage Weil 760de57606cSSage Weil extern int __ceph_caps_issued(struct ceph_inode_info *ci, int *implemented); 761de57606cSSage Weil extern int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int t); 7621af16d54SXiubo Li extern int __ceph_caps_issued_mask_metric(struct ceph_inode_info *ci, int mask, 7631af16d54SXiubo Li int t); 764de57606cSSage Weil extern int __ceph_caps_issued_other(struct ceph_inode_info *ci, 765de57606cSSage Weil struct ceph_cap *cap); 766de57606cSSage Weil 767de57606cSSage Weil static inline int ceph_caps_issued(struct ceph_inode_info *ci) 768de57606cSSage Weil { 769de57606cSSage Weil int issued; 770be655596SSage Weil spin_lock(&ci->i_ceph_lock); 771de57606cSSage Weil issued = __ceph_caps_issued(ci, NULL); 772be655596SSage Weil spin_unlock(&ci->i_ceph_lock); 773de57606cSSage Weil return issued; 774de57606cSSage Weil } 775de57606cSSage Weil 7761af16d54SXiubo Li static inline int ceph_caps_issued_mask_metric(struct ceph_inode_info *ci, 7771af16d54SXiubo Li int mask, int touch) 778de57606cSSage Weil { 779de57606cSSage Weil int r; 780be655596SSage Weil spin_lock(&ci->i_ceph_lock); 7811af16d54SXiubo Li r = __ceph_caps_issued_mask_metric(ci, mask, touch); 782be655596SSage Weil spin_unlock(&ci->i_ceph_lock); 783de57606cSSage Weil return r; 784de57606cSSage Weil } 785de57606cSSage Weil 786de57606cSSage Weil static inline int __ceph_caps_dirty(struct ceph_inode_info *ci) 787de57606cSSage Weil { 788de57606cSSage Weil return ci->i_dirty_caps | ci->i_flushing_caps; 789de57606cSSage Weil } 790f66fd9f0SYan, Zheng extern struct ceph_cap_flush *ceph_alloc_cap_flush(void); 791f66fd9f0SYan, Zheng extern void ceph_free_cap_flush(struct ceph_cap_flush *cf); 792f66fd9f0SYan, Zheng extern int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask, 793f66fd9f0SYan, Zheng struct ceph_cap_flush **pcf); 794de57606cSSage Weil 7959563f88cSYan, Zheng extern int __ceph_caps_revoking_other(struct ceph_inode_info *ci, 7969563f88cSYan, Zheng struct ceph_cap *ocap, int mask); 797de57606cSSage Weil extern int ceph_caps_revoking(struct ceph_inode_info *ci, int mask); 798de57606cSSage Weil extern int __ceph_caps_used(struct ceph_inode_info *ci); 799de57606cSSage Weil 800719a2514SYan, Zheng static inline bool __ceph_is_file_opened(struct ceph_inode_info *ci) 801719a2514SYan, Zheng { 802719a2514SYan, Zheng return ci->i_nr_by_mode[0]; 803719a2514SYan, Zheng } 804de57606cSSage Weil extern int __ceph_caps_file_wanted(struct ceph_inode_info *ci); 805525d15e8SYan, Zheng extern int __ceph_caps_wanted(struct ceph_inode_info *ci); 806de57606cSSage Weil 807de57606cSSage Weil /* what the mds thinks we want */ 808c1944fedSYan, Zheng extern int __ceph_caps_mds_wanted(struct ceph_inode_info *ci, bool check); 809de57606cSSage Weil 81037151668SYehuda Sadeh extern void ceph_caps_init(struct ceph_mds_client *mdsc); 81137151668SYehuda Sadeh extern void ceph_caps_finalize(struct ceph_mds_client *mdsc); 812fe33032dSYan, Zheng extern void ceph_adjust_caps_max_min(struct ceph_mds_client *mdsc, 813fe33032dSYan, Zheng struct ceph_mount_options *fsopt); 814e30ee581SZhi Zhang extern int ceph_reserve_caps(struct ceph_mds_client *mdsc, 81537151668SYehuda Sadeh struct ceph_cap_reservation *ctx, int need); 8167bf8f736SChengguang Xu extern void ceph_unreserve_caps(struct ceph_mds_client *mdsc, 81737151668SYehuda Sadeh struct ceph_cap_reservation *ctx); 8183d14c5d2SYehuda Sadeh extern void ceph_reservation_status(struct ceph_fs_client *client, 819de57606cSSage Weil int *total, int *avail, int *used, 82085ccce43SSage Weil int *reserved, int *min); 821e19feff9SXiubo Li extern void change_auth_cap_ses(struct ceph_inode_info *ci, 822e19feff9SXiubo Li struct ceph_mds_session *session); 823de57606cSSage Weil 824de57606cSSage Weil 825de57606cSSage Weil 826de57606cSSage Weil /* 827de57606cSSage Weil * we keep buffered readdir results attached to file->private_data 828de57606cSSage Weil */ 8294918b6d1SSage Weil #define CEPH_F_SYNC 1 8309cfa1098SSage Weil #define CEPH_F_ATEND 2 8314918b6d1SSage Weil 832de57606cSSage Weil struct ceph_file_info { 833252c6728SSage Weil short fmode; /* initialized on open */ 834252c6728SSage Weil short flags; /* CEPH_F_* */ 835de57606cSSage Weil 8365d988308SYan, Zheng spinlock_t rw_contexts_lock; 8375d988308SYan, Zheng struct list_head rw_contexts; 838f4b97866SYan, Zheng 83981f148a9SYan, Zheng u32 filp_gen; 840bb48bd4dSChengguang Xu }; 841bb48bd4dSChengguang Xu 842bb48bd4dSChengguang Xu struct ceph_dir_file_info { 843bb48bd4dSChengguang Xu struct ceph_file_info file_info; 8445d988308SYan, Zheng 845de57606cSSage Weil /* readdir: position within the dir */ 846de57606cSSage Weil u32 frag; 847de57606cSSage Weil struct ceph_mds_request *last_readdir; 848de57606cSSage Weil 849de57606cSSage Weil /* readdir: position within a frag */ 850f0494206SYan, Zheng unsigned next_offset; /* offset of next chunk (last_name's + 1) */ 851de57606cSSage Weil char *last_name; /* last entry in previous chunk */ 852fdd4e158SYan, Zheng long long dir_release_count; 853fdd4e158SYan, Zheng long long dir_ordered_count; 854fdd4e158SYan, Zheng int readdir_cache_idx; 855de57606cSSage Weil 856de57606cSSage Weil /* used for -o dirstat read() on directory thing */ 857de57606cSSage Weil char *dir_info; 858de57606cSSage Weil int dir_info_len; 859de57606cSSage Weil }; 860de57606cSSage Weil 8615d988308SYan, Zheng struct ceph_rw_context { 8625d988308SYan, Zheng struct list_head list; 8635d988308SYan, Zheng struct task_struct *thread; 8645d988308SYan, Zheng int caps; 8655d988308SYan, Zheng }; 8665d988308SYan, Zheng 8675d988308SYan, Zheng #define CEPH_DEFINE_RW_CONTEXT(_name, _caps) \ 8685d988308SYan, Zheng struct ceph_rw_context _name = { \ 8695d988308SYan, Zheng .thread = current, \ 8705d988308SYan, Zheng .caps = _caps, \ 8715d988308SYan, Zheng } 8725d988308SYan, Zheng 8735d988308SYan, Zheng static inline void ceph_add_rw_context(struct ceph_file_info *cf, 8745d988308SYan, Zheng struct ceph_rw_context *ctx) 8755d988308SYan, Zheng { 8765d988308SYan, Zheng spin_lock(&cf->rw_contexts_lock); 8775d988308SYan, Zheng list_add(&ctx->list, &cf->rw_contexts); 8785d988308SYan, Zheng spin_unlock(&cf->rw_contexts_lock); 8795d988308SYan, Zheng } 8805d988308SYan, Zheng 8815d988308SYan, Zheng static inline void ceph_del_rw_context(struct ceph_file_info *cf, 8825d988308SYan, Zheng struct ceph_rw_context *ctx) 8835d988308SYan, Zheng { 8845d988308SYan, Zheng spin_lock(&cf->rw_contexts_lock); 8855d988308SYan, Zheng list_del(&ctx->list); 8865d988308SYan, Zheng spin_unlock(&cf->rw_contexts_lock); 8875d988308SYan, Zheng } 8885d988308SYan, Zheng 8895d988308SYan, Zheng static inline struct ceph_rw_context* 8905d988308SYan, Zheng ceph_find_rw_context(struct ceph_file_info *cf) 8915d988308SYan, Zheng { 8925d988308SYan, Zheng struct ceph_rw_context *ctx, *found = NULL; 8935d988308SYan, Zheng spin_lock(&cf->rw_contexts_lock); 8945d988308SYan, Zheng list_for_each_entry(ctx, &cf->rw_contexts, list) { 8955d988308SYan, Zheng if (ctx->thread == current) { 8965d988308SYan, Zheng found = ctx; 8975d988308SYan, Zheng break; 8985d988308SYan, Zheng } 8995d988308SYan, Zheng } 9005d988308SYan, Zheng spin_unlock(&cf->rw_contexts_lock); 9015d988308SYan, Zheng return found; 9025d988308SYan, Zheng } 9035d988308SYan, Zheng 904fdd4e158SYan, Zheng struct ceph_readdir_cache_control { 905fdd4e158SYan, Zheng struct page *page; 906fdd4e158SYan, Zheng struct dentry **dentries; 907fdd4e158SYan, Zheng int index; 908fdd4e158SYan, Zheng }; 909de57606cSSage Weil 910de57606cSSage Weil /* 911de57606cSSage Weil * A "snap realm" describes a subset of the file hierarchy sharing 912de57606cSSage Weil * the same set of snapshots that apply to it. The realms themselves 913de57606cSSage Weil * are organized into a hierarchy, such that children inherit (some of) 914de57606cSSage Weil * the snapshots of their parents. 915de57606cSSage Weil * 916de57606cSSage Weil * All inodes within the realm that have capabilities are linked into a 917de57606cSSage Weil * per-realm list. 918de57606cSSage Weil */ 919de57606cSSage Weil struct ceph_snap_realm { 920de57606cSSage Weil u64 ino; 921e3161f17SLuis Henriques struct inode *inode; 922de57606cSSage Weil atomic_t nref; 923a105f00cSSage Weil struct rb_node node; 924a105f00cSSage Weil 925de57606cSSage Weil u64 created, seq; 926de57606cSSage Weil u64 parent_ino; 927de57606cSSage Weil u64 parent_since; /* snapid when our current parent became so */ 928de57606cSSage Weil 929de57606cSSage Weil u64 *prior_parent_snaps; /* snaps inherited from any parents we */ 930aa711ee3SAlex Elder u32 num_prior_parent_snaps; /* had prior to parent_since */ 931de57606cSSage Weil u64 *snaps; /* snaps specific to this realm */ 932aa711ee3SAlex Elder u32 num_snaps; 933de57606cSSage Weil 934de57606cSSage Weil struct ceph_snap_realm *parent; 935de57606cSSage Weil struct list_head children; /* list of child realms */ 936de57606cSSage Weil struct list_head child_item; 937de57606cSSage Weil 938de57606cSSage Weil struct list_head empty_item; /* if i have ref==0 */ 939de57606cSSage Weil 940ae00d4f3SSage Weil struct list_head dirty_item; /* if realm needs new context */ 941ae00d4f3SSage Weil 94274a31df4SXiubo Li struct list_head rebuild_item; /* rebuild snap realms _downward_ in hierarchy */ 94374a31df4SXiubo Li 944de57606cSSage Weil /* the current set of snaps for this realm */ 945de57606cSSage Weil struct ceph_snap_context *cached_context; 946de57606cSSage Weil 947de57606cSSage Weil struct list_head inodes_with_caps; 948de57606cSSage Weil spinlock_t inodes_with_caps_lock; 949de57606cSSage Weil }; 950de57606cSSage Weil 9513d14c5d2SYehuda Sadeh static inline int default_congestion_kb(void) 9523d14c5d2SYehuda Sadeh { 9533d14c5d2SYehuda Sadeh int congestion_kb; 954de57606cSSage Weil 955de57606cSSage Weil /* 9563d14c5d2SYehuda Sadeh * Copied from NFS 9573d14c5d2SYehuda Sadeh * 9583d14c5d2SYehuda Sadeh * congestion size, scale with available memory. 9593d14c5d2SYehuda Sadeh * 9603d14c5d2SYehuda Sadeh * 64MB: 8192k 9613d14c5d2SYehuda Sadeh * 128MB: 11585k 9623d14c5d2SYehuda Sadeh * 256MB: 16384k 9633d14c5d2SYehuda Sadeh * 512MB: 23170k 9643d14c5d2SYehuda Sadeh * 1GB: 32768k 9653d14c5d2SYehuda Sadeh * 2GB: 46340k 9663d14c5d2SYehuda Sadeh * 4GB: 65536k 9673d14c5d2SYehuda Sadeh * 8GB: 92681k 9683d14c5d2SYehuda Sadeh * 16GB: 131072k 9693d14c5d2SYehuda Sadeh * 9703d14c5d2SYehuda Sadeh * This allows larger machines to have larger/more transfers. 9713d14c5d2SYehuda Sadeh * Limit the default to 256M 972de57606cSSage Weil */ 973ca79b0c2SArun KS congestion_kb = (16*int_sqrt(totalram_pages())) << (PAGE_SHIFT-10); 9743d14c5d2SYehuda Sadeh if (congestion_kb > 256*1024) 9753d14c5d2SYehuda Sadeh congestion_kb = 256*1024; 9763d14c5d2SYehuda Sadeh 9773d14c5d2SYehuda Sadeh return congestion_kb; 978de57606cSSage Weil } 979de57606cSSage Weil 980de57606cSSage Weil 981d468e729SYan, Zheng /* super.c */ 982d468e729SYan, Zheng extern int ceph_force_reconnect(struct super_block *sb); 983de57606cSSage Weil /* snap.c */ 984de57606cSSage Weil struct ceph_snap_realm *ceph_lookup_snap_realm(struct ceph_mds_client *mdsc, 985de57606cSSage Weil u64 ino); 986de57606cSSage Weil extern void ceph_get_snap_realm(struct ceph_mds_client *mdsc, 987de57606cSSage Weil struct ceph_snap_realm *realm); 988de57606cSSage Weil extern void ceph_put_snap_realm(struct ceph_mds_client *mdsc, 989de57606cSSage Weil struct ceph_snap_realm *realm); 990de57606cSSage Weil extern int ceph_update_snap_trace(struct ceph_mds_client *m, 991982d6011SYan, Zheng void *p, void *e, bool deletion, 992982d6011SYan, Zheng struct ceph_snap_realm **realm_ret); 9930ba92e1cSJeff Layton void ceph_change_snap_realm(struct inode *inode, struct ceph_snap_realm *realm); 994de57606cSSage Weil extern void ceph_handle_snap(struct ceph_mds_client *mdsc, 9952600d2ddSSage Weil struct ceph_mds_session *session, 996de57606cSSage Weil struct ceph_msg *msg); 997de57606cSSage Weil extern int __ceph_finish_cap_snap(struct ceph_inode_info *ci, 998de57606cSSage Weil struct ceph_cap_snap *capsnap); 9995ed91587SXiubo Li extern void ceph_cleanup_global_and_empty_realms(struct ceph_mds_client *mdsc); 1000de57606cSSage Weil 100175c9627eSYan, Zheng extern struct ceph_snapid_map *ceph_get_snapid_map(struct ceph_mds_client *mdsc, 100275c9627eSYan, Zheng u64 snap); 100375c9627eSYan, Zheng extern void ceph_put_snapid_map(struct ceph_mds_client* mdsc, 100475c9627eSYan, Zheng struct ceph_snapid_map *sm); 100575c9627eSYan, Zheng extern void ceph_trim_snapid_map(struct ceph_mds_client *mdsc); 100675c9627eSYan, Zheng extern void ceph_cleanup_snapid_map(struct ceph_mds_client *mdsc); 1007631ed4b0SJeff Layton void ceph_umount_begin(struct super_block *sb); 100875c9627eSYan, Zheng 100975c9627eSYan, Zheng 1010de57606cSSage Weil /* 1011de57606cSSage Weil * a cap_snap is "pending" if it is still awaiting an in-progress 1012de57606cSSage Weil * sync write (that may/may not still update size, mtime, etc.). 1013de57606cSSage Weil */ 1014de57606cSSage Weil static inline bool __ceph_have_pending_cap_snap(struct ceph_inode_info *ci) 1015de57606cSSage Weil { 1016de57606cSSage Weil return !list_empty(&ci->i_cap_snaps) && 101786056090SYan, Zheng list_last_entry(&ci->i_cap_snaps, struct ceph_cap_snap, 1018de57606cSSage Weil ci_item)->writing; 1019de57606cSSage Weil } 1020de57606cSSage Weil 1021de57606cSSage Weil /* inode.c */ 1022966c7160SJeff Layton struct ceph_mds_reply_info_in; 1023966c7160SJeff Layton struct ceph_mds_reply_dirfrag; 1024ec9595c0SJeff Layton struct ceph_acl_sec_ctx; 1025966c7160SJeff Layton 1026de57606cSSage Weil extern const struct inode_operations ceph_file_iops; 1027de57606cSSage Weil 1028de57606cSSage Weil extern struct inode *ceph_alloc_inode(struct super_block *sb); 102987bc5b89SYan, Zheng extern void ceph_evict_inode(struct inode *inode); 1030cfa6d412SAl Viro extern void ceph_free_inode(struct inode *inode); 1031de57606cSSage Weil 1032ec9595c0SJeff Layton struct inode *ceph_new_inode(struct inode *dir, struct dentry *dentry, 1033ec9595c0SJeff Layton umode_t *mode, struct ceph_acl_sec_ctx *as_ctx); 1034ec9595c0SJeff Layton void ceph_as_ctx_to_req(struct ceph_mds_request *req, 1035ec9595c0SJeff Layton struct ceph_acl_sec_ctx *as_ctx); 1036ec9595c0SJeff Layton 1037de57606cSSage Weil extern struct inode *ceph_get_inode(struct super_block *sb, 1038ec9595c0SJeff Layton struct ceph_vino vino, 1039ec9595c0SJeff Layton struct inode *newino); 1040de57606cSSage Weil extern struct inode *ceph_get_snapdir(struct inode *parent); 1041de57606cSSage Weil extern int ceph_fill_file_size(struct inode *inode, int issued, 1042de57606cSSage Weil u32 truncate_seq, u64 truncate_size, u64 size); 1043de57606cSSage Weil extern void ceph_fill_file_time(struct inode *inode, int issued, 10449bbeab41SArnd Bergmann u64 time_warp_seq, struct timespec64 *ctime, 10459bbeab41SArnd Bergmann struct timespec64 *mtime, 10469bbeab41SArnd Bergmann struct timespec64 *atime); 1047966c7160SJeff Layton extern int ceph_fill_inode(struct inode *inode, struct page *locked_page, 1048966c7160SJeff Layton struct ceph_mds_reply_info_in *iinfo, 1049966c7160SJeff Layton struct ceph_mds_reply_dirfrag *dirinfo, 1050966c7160SJeff Layton struct ceph_mds_session *session, int cap_fmode, 1051966c7160SJeff Layton struct ceph_cap_reservation *caps_reservation); 1052de57606cSSage Weil extern int ceph_fill_trace(struct super_block *sb, 1053f5a03b08SJeff Layton struct ceph_mds_request *req); 1054de57606cSSage Weil extern int ceph_readdir_prepopulate(struct ceph_mds_request *req, 1055de57606cSSage Weil struct ceph_mds_session *session); 1056de57606cSSage Weil 1057de57606cSSage Weil extern int ceph_inode_holds_cap(struct inode *inode, int mask); 1058de57606cSSage Weil 1059efb0ca76SYan, Zheng extern bool ceph_inode_set_size(struct inode *inode, loff_t size); 1060b415bf4fSYan, Zheng extern void __ceph_do_pending_vmtruncate(struct inode *inode); 106164f28c62SJeff Layton 106264f28c62SJeff Layton void ceph_queue_inode_work(struct inode *inode, int work_bit); 106364f28c62SJeff Layton 106464f28c62SJeff Layton static inline void ceph_queue_vmtruncate(struct inode *inode) 106564f28c62SJeff Layton { 106664f28c62SJeff Layton ceph_queue_inode_work(inode, CEPH_I_WORK_VMTRUNCATE); 106764f28c62SJeff Layton } 106864f28c62SJeff Layton 106964f28c62SJeff Layton static inline void ceph_queue_invalidate(struct inode *inode) 107064f28c62SJeff Layton { 107164f28c62SJeff Layton ceph_queue_inode_work(inode, CEPH_I_WORK_INVALIDATE_PAGES); 107264f28c62SJeff Layton } 107364f28c62SJeff Layton 107464f28c62SJeff Layton static inline void ceph_queue_writeback(struct inode *inode) 107564f28c62SJeff Layton { 107664f28c62SJeff Layton ceph_queue_inode_work(inode, CEPH_I_WORK_WRITEBACK); 107764f28c62SJeff Layton } 107864f28c62SJeff Layton 1079a8810cdcSJeff Layton static inline void ceph_queue_check_caps(struct inode *inode) 1080a8810cdcSJeff Layton { 1081a8810cdcSJeff Layton ceph_queue_inode_work(inode, CEPH_I_WORK_CHECK_CAPS); 1082a8810cdcSJeff Layton } 1083a8810cdcSJeff Layton 1084a8810cdcSJeff Layton static inline void ceph_queue_flush_snaps(struct inode *inode) 1085a8810cdcSJeff Layton { 1086a8810cdcSJeff Layton ceph_queue_inode_work(inode, CEPH_I_WORK_FLUSH_SNAPS); 1087a8810cdcSJeff Layton } 1088a8810cdcSJeff Layton 10895eed80fbSXiubo Li extern int ceph_try_to_choose_auth_mds(struct inode *inode, int mask); 109001deead0SYan, Zheng extern int __ceph_do_getattr(struct inode *inode, struct page *locked_page, 109101deead0SYan, Zheng int mask, bool force); 109201deead0SYan, Zheng static inline int ceph_do_getattr(struct inode *inode, int mask, bool force) 109301deead0SYan, Zheng { 109401deead0SYan, Zheng return __ceph_do_getattr(inode, NULL, mask, force); 109501deead0SYan, Zheng } 10964609e1f1SChristian Brauner extern int ceph_permission(struct mnt_idmap *idmap, 1097549c7297SChristian Brauner struct inode *inode, int mask); 10982d332d5bSJeff Layton 10992d332d5bSJeff Layton struct ceph_iattr { 11002d332d5bSJeff Layton struct ceph_fscrypt_auth *fscrypt_auth; 11012d332d5bSJeff Layton }; 11022d332d5bSJeff Layton 1103*79c66a0cSAlexander Mikhalitsyn extern int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode, 1104*79c66a0cSAlexander Mikhalitsyn struct iattr *attr, struct ceph_iattr *cia); 1105c1632a0fSChristian Brauner extern int ceph_setattr(struct mnt_idmap *idmap, 1106549c7297SChristian Brauner struct dentry *dentry, struct iattr *attr); 1107b74d24f7SChristian Brauner extern int ceph_getattr(struct mnt_idmap *idmap, 1108549c7297SChristian Brauner const struct path *path, struct kstat *stat, 1109a528d35eSDavid Howells u32 request_mask, unsigned int flags); 11105d6451b1SJeff Layton void ceph_inode_shutdown(struct inode *inode); 11115d6451b1SJeff Layton 11125d6451b1SJeff Layton static inline bool ceph_inode_is_shutdown(struct inode *inode) 11135d6451b1SJeff Layton { 11145d6451b1SJeff Layton unsigned long flags = READ_ONCE(ceph_inode(inode)->i_ceph_flags); 11155995d90dSXiubo Li struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode); 11165d6451b1SJeff Layton int state = READ_ONCE(fsc->mount_state); 11175d6451b1SJeff Layton 11185d6451b1SJeff Layton return (flags & CEPH_I_SHUTDOWN) || state >= CEPH_MOUNT_SHUTDOWN; 11195d6451b1SJeff Layton } 1120de57606cSSage Weil 1121de57606cSSage Weil /* xattr.c */ 1122a26feccaSAndreas Gruenbacher int __ceph_setxattr(struct inode *, const char *, const void *, size_t, int); 11236ddf5f16SMilind Changire int ceph_do_getvxattr(struct inode *inode, const char *name, void *value, size_t size); 11247221fe4cSGuangliang Zhao ssize_t __ceph_getxattr(struct inode *, const char *, void *, size_t); 1125de57606cSSage Weil extern ssize_t ceph_listxattr(struct dentry *, char *, size_t); 112612fe3ddaSLuis Henriques extern struct ceph_buffer *__ceph_build_xattrs_blob(struct ceph_inode_info *ci); 1127de57606cSSage Weil extern void __ceph_destroy_xattrs(struct ceph_inode_info *ci); 1128b1ee94aaSYan, Zheng extern const struct xattr_handler *ceph_xattr_handlers[]; 1129de57606cSSage Weil 11305c31e92dSYan, Zheng struct ceph_acl_sec_ctx { 11315c31e92dSYan, Zheng #ifdef CONFIG_CEPH_FS_POSIX_ACL 11325c31e92dSYan, Zheng void *default_acl; 11335c31e92dSYan, Zheng void *acl; 11345c31e92dSYan, Zheng #endif 1135ac6713ccSYan, Zheng #ifdef CONFIG_CEPH_FS_SECURITY_LABEL 1136ac6713ccSYan, Zheng void *sec_ctx; 1137ac6713ccSYan, Zheng u32 sec_ctxlen; 1138ac6713ccSYan, Zheng #endif 11396b5717bdSJeff Layton #ifdef CONFIG_FS_ENCRYPTION 11406b5717bdSJeff Layton struct ceph_fscrypt_auth *fscrypt_auth; 11416b5717bdSJeff Layton #endif 11425c31e92dSYan, Zheng struct ceph_pagelist *pagelist; 11435c31e92dSYan, Zheng }; 11445c31e92dSYan, Zheng 1145315f2408SYan, Zheng #ifdef CONFIG_SECURITY 1146315f2408SYan, Zheng extern bool ceph_security_xattr_deadlock(struct inode *in); 1147315f2408SYan, Zheng extern bool ceph_security_xattr_wanted(struct inode *in); 1148315f2408SYan, Zheng #else 1149315f2408SYan, Zheng static inline bool ceph_security_xattr_deadlock(struct inode *in) 1150315f2408SYan, Zheng { 1151315f2408SYan, Zheng return false; 1152315f2408SYan, Zheng } 1153315f2408SYan, Zheng static inline bool ceph_security_xattr_wanted(struct inode *in) 1154315f2408SYan, Zheng { 1155315f2408SYan, Zheng return false; 1156315f2408SYan, Zheng } 1157315f2408SYan, Zheng #endif 1158315f2408SYan, Zheng 1159ac6713ccSYan, Zheng #ifdef CONFIG_CEPH_FS_SECURITY_LABEL 1160ac6713ccSYan, Zheng extern int ceph_security_init_secctx(struct dentry *dentry, umode_t mode, 1161ac6713ccSYan, Zheng struct ceph_acl_sec_ctx *ctx); 1162668959a5SJeff Layton static inline void ceph_security_invalidate_secctx(struct inode *inode) 1163668959a5SJeff Layton { 1164668959a5SJeff Layton security_inode_invalidate_secctx(inode); 1165668959a5SJeff Layton } 1166ac6713ccSYan, Zheng #else 1167ac6713ccSYan, Zheng static inline int ceph_security_init_secctx(struct dentry *dentry, umode_t mode, 1168ac6713ccSYan, Zheng struct ceph_acl_sec_ctx *ctx) 1169ac6713ccSYan, Zheng { 1170ac6713ccSYan, Zheng return 0; 1171ac6713ccSYan, Zheng } 1172ac6713ccSYan, Zheng static inline void ceph_security_invalidate_secctx(struct inode *inode) 1173ac6713ccSYan, Zheng { 1174ac6713ccSYan, Zheng } 1175ac6713ccSYan, Zheng #endif 11767221fe4cSGuangliang Zhao 11775c31e92dSYan, Zheng void ceph_release_acl_sec_ctx(struct ceph_acl_sec_ctx *as_ctx); 11787221fe4cSGuangliang Zhao 11795c31e92dSYan, Zheng /* acl.c */ 11807221fe4cSGuangliang Zhao #ifdef CONFIG_CEPH_FS_POSIX_ACL 11817221fe4cSGuangliang Zhao 11820cad6246SMiklos Szeredi struct posix_acl *ceph_get_acl(struct inode *, int, bool); 118313e83a49SChristian Brauner int ceph_set_acl(struct mnt_idmap *idmap, 1184138060baSChristian Brauner struct dentry *dentry, struct posix_acl *acl, int type); 1185b1ee94aaSYan, Zheng int ceph_pre_init_acls(struct inode *dir, umode_t *mode, 11865c31e92dSYan, Zheng struct ceph_acl_sec_ctx *as_ctx); 11875c31e92dSYan, Zheng void ceph_init_inode_acls(struct inode *inode, 11885c31e92dSYan, Zheng struct ceph_acl_sec_ctx *as_ctx); 1189c969d9bfSGuangliang Zhao 1190c969d9bfSGuangliang Zhao static inline void ceph_forget_all_cached_acls(struct inode *inode) 1191c969d9bfSGuangliang Zhao { 1192c969d9bfSGuangliang Zhao forget_all_cached_acls(inode); 1193c969d9bfSGuangliang Zhao } 11947221fe4cSGuangliang Zhao 11957221fe4cSGuangliang Zhao #else 11967221fe4cSGuangliang Zhao 11977221fe4cSGuangliang Zhao #define ceph_get_acl NULL 119872466d0bSSage Weil #define ceph_set_acl NULL 11997221fe4cSGuangliang Zhao 1200b1ee94aaSYan, Zheng static inline int ceph_pre_init_acls(struct inode *dir, umode_t *mode, 12015c31e92dSYan, Zheng struct ceph_acl_sec_ctx *as_ctx) 12027221fe4cSGuangliang Zhao { 12037221fe4cSGuangliang Zhao return 0; 12047221fe4cSGuangliang Zhao } 1205b1ee94aaSYan, Zheng static inline void ceph_init_inode_acls(struct inode *inode, 12065c31e92dSYan, Zheng struct ceph_acl_sec_ctx *as_ctx) 1207b1ee94aaSYan, Zheng { 1208b1ee94aaSYan, Zheng } 12097221fe4cSGuangliang Zhao static inline int ceph_acl_chmod(struct dentry *dentry, struct inode *inode) 12107221fe4cSGuangliang Zhao { 12117221fe4cSGuangliang Zhao return 0; 12127221fe4cSGuangliang Zhao } 12137221fe4cSGuangliang Zhao 12147221fe4cSGuangliang Zhao static inline void ceph_forget_all_cached_acls(struct inode *inode) 12157221fe4cSGuangliang Zhao { 12167221fe4cSGuangliang Zhao } 12177221fe4cSGuangliang Zhao 12187221fe4cSGuangliang Zhao #endif 12197221fe4cSGuangliang Zhao 1220de57606cSSage Weil /* caps.c */ 1221de57606cSSage Weil extern const char *ceph_cap_string(int c); 1222de57606cSSage Weil extern void ceph_handle_caps(struct ceph_mds_session *session, 1223de57606cSSage Weil struct ceph_msg *msg); 1224d9df2783SYan, Zheng extern struct ceph_cap *ceph_get_cap(struct ceph_mds_client *mdsc, 1225d9df2783SYan, Zheng struct ceph_cap_reservation *ctx); 1226d9df2783SYan, Zheng extern void ceph_add_cap(struct inode *inode, 1227de57606cSSage Weil struct ceph_mds_session *session, u64 cap_id, 1228135e671eSYan, Zheng unsigned issued, unsigned wanted, 1229de57606cSSage Weil unsigned cap, unsigned seq, u64 realmino, int flags, 1230d9df2783SYan, Zheng struct ceph_cap **new_cap); 1231a096b09aSYan, Zheng extern void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release); 1232197b7d79SXiubo Li extern void ceph_remove_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap, 1233197b7d79SXiubo Li bool queue_release); 1234d6e47819SYan, Zheng extern void __ceph_remove_caps(struct ceph_inode_info *ci); 123537151668SYehuda Sadeh extern void ceph_put_cap(struct ceph_mds_client *mdsc, 123637151668SYehuda Sadeh struct ceph_cap *cap); 12379215aeeaSYan, Zheng extern int ceph_is_any_caps(struct inode *inode); 1238de57606cSSage Weil 1239f1a3d572SStephen Rothwell extern int ceph_write_inode(struct inode *inode, struct writeback_control *wbc); 124002c24a82SJosef Bacik extern int ceph_fsync(struct file *file, loff_t start, loff_t end, 124102c24a82SJosef Bacik int datasync); 1242e548e9b9SYan, Zheng extern void ceph_early_kick_flushing_caps(struct ceph_mds_client *mdsc, 1243e548e9b9SYan, Zheng struct ceph_mds_session *session); 1244de57606cSSage Weil extern void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc, 1245de57606cSSage Weil struct ceph_mds_session *session); 1246e8a4d267SJeff Layton void ceph_kick_flushing_inode_caps(struct ceph_mds_session *session, 1247e8a4d267SJeff Layton struct ceph_inode_info *ci); 1248aaf67de7SXiubo Li extern struct ceph_cap *__get_cap_for_mds(struct ceph_inode_info *ci, 1249aaf67de7SXiubo Li int mds); 12502bc50259SGreg Farnum extern struct ceph_cap *ceph_get_cap_for_mds(struct ceph_inode_info *ci, 12512bc50259SGreg Farnum int mds); 125240dcf75eSJeff Layton extern void ceph_take_cap_refs(struct ceph_inode_info *ci, int caps, 125340dcf75eSJeff Layton bool snap_rwsem_locked); 1254de57606cSSage Weil extern void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps); 1255de57606cSSage Weil extern void ceph_put_cap_refs(struct ceph_inode_info *ci, int had); 1256a8810cdcSJeff Layton extern void ceph_put_cap_refs_async(struct ceph_inode_info *ci, int had); 1257e64f44a8SXiubo Li extern void ceph_put_cap_refs_no_check_caps(struct ceph_inode_info *ci, 1258e64f44a8SXiubo Li int had); 1259de57606cSSage Weil extern void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr, 1260de57606cSSage Weil struct ceph_snap_context *snapc); 1261a6d37ccdSXiubo Li extern void __ceph_remove_capsnap(struct inode *inode, 1262a6d37ccdSXiubo Li struct ceph_cap_snap *capsnap, 1263a6d37ccdSXiubo Li bool *wake_ci, bool *wake_mdsc); 1264a6d37ccdSXiubo Li extern void ceph_remove_capsnap(struct inode *inode, 1265a6d37ccdSXiubo Li struct ceph_cap_snap *capsnap, 1266a6d37ccdSXiubo Li bool *wake_ci, bool *wake_mdsc); 1267ed9b430cSYan, Zheng extern void ceph_flush_snaps(struct ceph_inode_info *ci, 12680e294387SYan, Zheng struct ceph_mds_session **psession); 1269efb0ca76SYan, Zheng extern bool __ceph_should_report_size(struct ceph_inode_info *ci); 1270e4b731ccSXiubo Li extern void ceph_check_caps(struct ceph_inode_info *ci, int flags); 1271bf2ba432SLuis Henriques extern unsigned long ceph_check_delayed_caps(struct ceph_mds_client *mdsc); 1272afcdaea3SSage Weil extern void ceph_flush_dirty_caps(struct ceph_mds_client *mdsc); 12736ef0bc6dSZhi Zhang extern int ceph_drop_caps_for_unlink(struct inode *inode); 1274de57606cSSage Weil extern int ceph_encode_inode_release(void **p, struct inode *inode, 1275de57606cSSage Weil int mds, int drop, int unless, int force); 1276de57606cSSage Weil extern int ceph_encode_dentry_release(void **p, struct dentry *dn, 1277ca6c8ae0SJeff Layton struct inode *dir, 1278de57606cSSage Weil int mds, int drop, int unless); 1279de57606cSSage Weil 12805c64737dSXiubo Li extern int __ceph_get_caps(struct inode *inode, struct ceph_file_info *fi, 12815c64737dSXiubo Li int need, int want, loff_t endoff, int *got); 12825e3ded1bSYan, Zheng extern int ceph_get_caps(struct file *filp, int need, int want, 1283e72968e1SJeff Layton loff_t endoff, int *got); 12845e3ded1bSYan, Zheng extern int ceph_try_get_caps(struct inode *inode, 12852ee9dd95SLuis Henriques int need, int want, bool nonblock, int *got); 1286de57606cSSage Weil 1287de57606cSSage Weil /* for counting open files by mode */ 1288719a2514SYan, Zheng extern void ceph_get_fmode(struct ceph_inode_info *ci, int mode, int count); 1289719a2514SYan, Zheng extern void ceph_put_fmode(struct ceph_inode_info *ci, int mode, int count); 1290719a2514SYan, Zheng extern void __ceph_touch_fmode(struct ceph_inode_info *ci, 1291719a2514SYan, Zheng struct ceph_mds_client *mdsc, int fmode); 1292de57606cSSage Weil 1293de57606cSSage Weil /* addr.c */ 1294de57606cSSage Weil extern const struct address_space_operations ceph_aops; 1295bc899ee1SDavid Howells extern const struct netfs_request_ops ceph_netfs_ops; 1296de57606cSSage Weil extern int ceph_mmap(struct file *file, struct vm_area_struct *vma); 1297083db6fdSDavid Howells extern int ceph_uninline_data(struct file *file); 12985e3ded1bSYan, Zheng extern int ceph_pool_perm_check(struct inode *inode, int need); 129910183a69SYan, Zheng extern void ceph_pool_perm_destroy(struct ceph_mds_client* mdsc); 130036e6da98SJeff Layton int ceph_purge_inode_cap(struct inode *inode, struct ceph_cap *cap, bool *invalidate); 1301de57606cSSage Weil 130248490776SXiubo Li static inline bool ceph_has_inline_data(struct ceph_inode_info *ci) 130348490776SXiubo Li { 130448490776SXiubo Li if (ci->i_inline_version == CEPH_INLINE_NONE || 130548490776SXiubo Li ci->i_inline_version == 1) /* initial version, no data */ 130648490776SXiubo Li return false; 130748490776SXiubo Li return true; 130848490776SXiubo Li } 130948490776SXiubo Li 1310de57606cSSage Weil /* file.c */ 1311de57606cSSage Weil extern const struct file_operations ceph_file_fops; 13129e0eb85dSAlex Elder 1313719a2514SYan, Zheng extern int ceph_renew_caps(struct inode *inode, int fmode); 1314de57606cSSage Weil extern int ceph_open(struct inode *inode, struct file *file); 13155ef50c3bSSage Weil extern int ceph_atomic_open(struct inode *dir, struct dentry *dentry, 131644907d79SAl Viro struct file *file, unsigned flags, umode_t mode); 1317d4d51887SXiubo Li extern ssize_t __ceph_sync_read(struct inode *inode, loff_t *ki_pos, 1318d4d51887SXiubo Li struct iov_iter *to, int *retry_op, 1319d4d51887SXiubo Li u64 *last_objver); 1320de57606cSSage Weil extern int ceph_release(struct inode *inode, struct file *filp); 132131c542a1SYan, Zheng extern void ceph_fill_inline_data(struct inode *inode, struct page *locked_page, 132231c542a1SYan, Zheng char *data, size_t len); 132355f2a045SIlya Dryomov 1324de57606cSSage Weil /* dir.c */ 1325de57606cSSage Weil extern const struct file_operations ceph_dir_fops; 132638c48b5fSYan, Zheng extern const struct file_operations ceph_snapdir_fops; 1327de57606cSSage Weil extern const struct inode_operations ceph_dir_iops; 132838c48b5fSYan, Zheng extern const struct inode_operations ceph_snapdir_iops; 132918fc8abdSAl Viro extern const struct dentry_operations ceph_dentry_ops; 1330de57606cSSage Weil 1331f3c4ebe6SYan, Zheng extern loff_t ceph_make_fpos(unsigned high, unsigned off, bool hash_order); 1332de57606cSSage Weil extern int ceph_handle_notrace_create(struct inode *dir, struct dentry *dentry); 1333aa60cfc3SJeff Layton extern struct dentry *ceph_handle_snapdir(struct ceph_mds_request *req, 13347a971e2cSJeff Layton struct dentry *dentry); 1335de57606cSSage Weil extern struct dentry *ceph_finish_lookup(struct ceph_mds_request *req, 1336de57606cSSage Weil struct dentry *dentry, int err); 1337de57606cSSage Weil 133837c4efc1SYan, Zheng extern void __ceph_dentry_lease_touch(struct ceph_dentry_info *di); 133937c4efc1SYan, Zheng extern void __ceph_dentry_dir_lease_touch(struct ceph_dentry_info *di); 134081a6cf2dSSage Weil extern void ceph_invalidate_dentry_lease(struct dentry *dentry); 134137c4efc1SYan, Zheng extern int ceph_trim_dentries(struct ceph_mds_client *mdsc); 1342e5f86dc3SSage Weil extern unsigned ceph_dentry_hash(struct inode *dir, struct dentry *dn); 1343fdd4e158SYan, Zheng extern void ceph_readdir_cache_release(struct ceph_readdir_cache_control *ctl); 1344de57606cSSage Weil 1345de57606cSSage Weil /* ioctl.c */ 1346de57606cSSage Weil extern long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 1347de57606cSSage Weil 1348de57606cSSage Weil /* export.c */ 1349de57606cSSage Weil extern const struct export_operations ceph_export_ops; 13503886274aSLuis Henriques struct inode *ceph_lookup_inode(struct super_block *sb, u64 ino); 1351de57606cSSage Weil 135240819f6fSGreg Farnum /* locks.c */ 1353eb13e832SYan, Zheng extern __init void ceph_flock_init(void); 135440819f6fSGreg Farnum extern int ceph_lock(struct file *file, int cmd, struct file_lock *fl); 135540819f6fSGreg Farnum extern int ceph_flock(struct file *file, int cmd, struct file_lock *fl); 135640819f6fSGreg Farnum extern void ceph_count_locks(struct inode *inode, int *p_num, int *f_num); 135739be95e9SJim Schutt extern int ceph_encode_locks_to_buffer(struct inode *inode, 135839be95e9SJim Schutt struct ceph_filelock *flocks, 135939be95e9SJim Schutt int num_fcntl_locks, 136039be95e9SJim Schutt int num_flock_locks); 136139be95e9SJim Schutt extern int ceph_locks_to_pagelist(struct ceph_filelock *flocks, 136239be95e9SJim Schutt struct ceph_pagelist *pagelist, 136339be95e9SJim Schutt int num_fcntl_locks, int num_flock_locks); 136440819f6fSGreg Farnum 13653d14c5d2SYehuda Sadeh /* debugfs.c */ 13661a829ff2SGreg Kroah-Hartman extern void ceph_fs_debugfs_init(struct ceph_fs_client *client); 13673d14c5d2SYehuda Sadeh extern void ceph_fs_debugfs_cleanup(struct ceph_fs_client *client); 13683d14c5d2SYehuda Sadeh 1369fb18a575SLuis Henriques /* quota.c */ 137055ab5520SLuís Henriques 137155ab5520SLuís Henriques enum quota_get_realm { 137255ab5520SLuís Henriques QUOTA_GET_MAX_FILES, 137355ab5520SLuís Henriques QUOTA_GET_MAX_BYTES, 137455ab5520SLuís Henriques QUOTA_GET_ANY 137555ab5520SLuís Henriques }; 137655ab5520SLuís Henriques 137755ab5520SLuís Henriques static inline bool __ceph_has_quota(struct ceph_inode_info *ci, 137855ab5520SLuís Henriques enum quota_get_realm which) 1379d557c48dSLuis Henriques { 138055ab5520SLuís Henriques bool has_quota = false; 138155ab5520SLuís Henriques 138255ab5520SLuís Henriques switch (which) { 138355ab5520SLuís Henriques case QUOTA_GET_MAX_BYTES: 138455ab5520SLuís Henriques has_quota = !!ci->i_max_bytes; 138555ab5520SLuís Henriques break; 138655ab5520SLuís Henriques case QUOTA_GET_MAX_FILES: 138755ab5520SLuís Henriques has_quota = !!ci->i_max_files; 138855ab5520SLuís Henriques break; 138955ab5520SLuís Henriques default: 139055ab5520SLuís Henriques has_quota = !!(ci->i_max_files || ci->i_max_bytes); 139155ab5520SLuís Henriques } 139255ab5520SLuís Henriques return has_quota; 1393d557c48dSLuis Henriques } 1394d557c48dSLuis Henriques 1395d557c48dSLuis Henriques extern void ceph_adjust_quota_realms_count(struct inode *inode, bool inc); 1396d557c48dSLuis Henriques 1397d557c48dSLuis Henriques static inline void __ceph_update_quota(struct ceph_inode_info *ci, 1398d557c48dSLuis Henriques u64 max_bytes, u64 max_files) 1399d557c48dSLuis Henriques { 1400d557c48dSLuis Henriques bool had_quota, has_quota; 140155ab5520SLuís Henriques had_quota = __ceph_has_quota(ci, QUOTA_GET_ANY); 1402d557c48dSLuis Henriques ci->i_max_bytes = max_bytes; 1403d557c48dSLuis Henriques ci->i_max_files = max_files; 140455ab5520SLuís Henriques has_quota = __ceph_has_quota(ci, QUOTA_GET_ANY); 1405d557c48dSLuis Henriques 1406d557c48dSLuis Henriques if (had_quota != has_quota) 1407874c8ca1SDavid Howells ceph_adjust_quota_realms_count(&ci->netfs.inode, has_quota); 1408d557c48dSLuis Henriques } 1409d557c48dSLuis Henriques 1410fb18a575SLuis Henriques extern void ceph_handle_quota(struct ceph_mds_client *mdsc, 1411fb18a575SLuis Henriques struct ceph_mds_session *session, 1412fb18a575SLuis Henriques struct ceph_msg *msg); 1413b7a29217SLuis Henriques extern bool ceph_quota_is_max_files_exceeded(struct inode *inode); 14146646ea1cSLuis Henriques extern bool ceph_quota_is_same_realm(struct inode *old, struct inode *new); 14152b83845fSLuis Henriques extern bool ceph_quota_is_max_bytes_exceeded(struct inode *inode, 14162b83845fSLuis Henriques loff_t newlen); 14171ab302a0SLuis Henriques extern bool ceph_quota_is_max_bytes_approaching(struct inode *inode, 14181ab302a0SLuis Henriques loff_t newlen); 14199122eed5SLuis Henriques extern bool ceph_quota_update_statfs(struct ceph_fs_client *fsc, 14209122eed5SLuis Henriques struct kstatfs *buf); 14210c44a8e0SLuis Henriques extern void ceph_cleanup_quotarealms_inodes(struct ceph_mds_client *mdsc); 1422fb18a575SLuis Henriques 1423e3dfcab2SXiubo Li bool ceph_inc_mds_stopping_blocker(struct ceph_mds_client *mdsc, 1424e3dfcab2SXiubo Li struct ceph_mds_session *session); 1425e3dfcab2SXiubo Li void ceph_dec_mds_stopping_blocker(struct ceph_mds_client *mdsc); 14261464de9fSXiubo Li bool ceph_inc_osd_stopping_blocker(struct ceph_mds_client *mdsc); 14271464de9fSXiubo Li void ceph_dec_osd_stopping_blocker(struct ceph_mds_client *mdsc); 1428de57606cSSage Weil #endif /* _FS_CEPH_SUPER_H */ 1429