1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_FS_UFS_FILIO_H 27 #define _SYS_FS_UFS_FILIO_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 /* 36 * _FIOIO 37 * 38 * struct for _FIOIO ioctl(): 39 * Input: 40 * fio_ino - inode number 41 * fio_gen - generation number 42 * Output: 43 * fio_fd - readonly file descriptor 44 * 45 */ 46 47 struct fioio { 48 ino_t fio_ino; /* input : inode number */ 49 int fio_gen; /* input : generation number */ 50 int fio_fd; /* output: readonly file descriptor */ 51 }; 52 53 #if defined(_SYSCALL32) 54 55 struct fioio32 { 56 ino32_t fio_ino; /* input : inode number */ 57 int32_t fio_gen; /* input : generation number */ 58 int32_t fio_fd; /* output: readonly file descriptor */ 59 }; 60 61 #endif /* _SYSCALL32 */ 62 63 /* 64 * _FIOTUNE 65 */ 66 struct fiotune { 67 int maxcontig; /* cluster and directio size */ 68 int rotdelay; /* skip blocks between contig allocations */ 69 int maxbpg; /* currently defaults to 2048 */ 70 int minfree; /* %age to reserve for root */ 71 int optim; /* space or time */ 72 }; 73 74 /* 75 * UFS Logging 76 */ 77 typedef struct fiolog { 78 uint_t nbytes_requested; 79 uint_t nbytes_actual; 80 int error; 81 } fiolog_t; 82 83 #define FIOLOG_ENONE 0 84 #define FIOLOG_ETRANS 1 85 #define FIOLOG_EROFS 2 86 #define FIOLOG_EULOCK 3 87 #define FIOLOG_EWLOCK 4 88 #define FIOLOG_ECLEAN 5 89 #define FIOLOG_ENOULOCK 6 90 91 #if defined(_KERNEL) && defined(__STDC__) 92 93 extern int ufs_fiosatime(struct vnode *, struct timeval *, int, 94 struct cred *); 95 extern int ufs_fiosdio(struct vnode *, uint_t *, int flag, struct cred *); 96 extern int ufs_fiogdio(struct vnode *, uint_t *, int flag, struct cred *); 97 extern int ufs_fioio(struct vnode *, struct fioio *, int, struct cred *); 98 extern int ufs_fioisbusy(struct vnode *, int *, struct cred *); 99 extern int ufs_fiodirectio(struct vnode *, int, struct cred *); 100 extern int ufs_fiotune(struct vnode *, struct fiotune *, struct cred *); 101 extern int ufs_fiologenable(vnode_t *, fiolog_t *, cred_t *, int); 102 extern int ufs_fiologdisable(vnode_t *, fiolog_t *, cred_t *, int); 103 extern int ufs_fioislog(vnode_t *, uint32_t *, cred_t *, int); 104 extern int ufs_fio_holey(vnode_t *, int, offset_t *); 105 extern int ufs_mark_compressed(struct vnode *vp); 106 107 #endif /* defined(_KERNEL) && defined(__STDC__) */ 108 109 #ifdef __cplusplus 110 } 111 #endif 112 113 #endif /* _SYS_FS_UFS_FILIO_H */ 114