projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 7b718769 NS |
2 | * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. | |
| 1da177e4 | 4 | * |
| 7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as | |
| 1da177e4 LT |
7 | * published by the Free Software Foundation. |
| 8 | * | |
| 7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 1da177e4 | 13 | * |
| 7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write the Free Software Foundation, | |
| 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 1da177e4 LT |
17 | */ |
| 18 | #ifndef __XFS_LRW_H__ | |
| 19 | #define __XFS_LRW_H__ | |
| 20 | ||
| 1da177e4 | 21 | struct bhv_desc; |
| 67fcaa73 | 22 | struct bhv_vnode; |
| 1da177e4 LT |
23 | struct xfs_mount; |
| 24 | struct xfs_iocore; | |
| 25 | struct xfs_inode; | |
| 26 | struct xfs_bmbt_irec; | |
| 27 | struct xfs_buf; | |
| 28 | struct xfs_iomap; | |
| 29 | ||
| 30 | #if defined(XFS_RW_TRACE) | |
| 31 | /* | |
| 32 | * Defines for the trace mechanisms in xfs_lrw.c. | |
| 33 | */ | |
| 34 | #define XFS_RW_KTRACE_SIZE 128 | |
| 35 | ||
| 36 | #define XFS_READ_ENTER 1 | |
| 37 | #define XFS_WRITE_ENTER 2 | |
| 38 | #define XFS_IOMAP_READ_ENTER 3 | |
| 39 | #define XFS_IOMAP_WRITE_ENTER 4 | |
| 40 | #define XFS_IOMAP_READ_MAP 5 | |
| 41 | #define XFS_IOMAP_WRITE_MAP 6 | |
| 42 | #define XFS_IOMAP_WRITE_NOSPACE 7 | |
| 43 | #define XFS_ITRUNC_START 8 | |
| 44 | #define XFS_ITRUNC_FINISH1 9 | |
| 45 | #define XFS_ITRUNC_FINISH2 10 | |
| 46 | #define XFS_CTRUNC1 11 | |
| 47 | #define XFS_CTRUNC2 12 | |
| 48 | #define XFS_CTRUNC3 13 | |
| 49 | #define XFS_CTRUNC4 14 | |
| 50 | #define XFS_CTRUNC5 15 | |
| 51 | #define XFS_CTRUNC6 16 | |
| 3e57ecf6 | 52 | #define XFS_BUNMAP 17 |
| 1da177e4 LT |
53 | #define XFS_INVAL_CACHED 18 |
| 54 | #define XFS_DIORD_ENTER 19 | |
| 55 | #define XFS_DIOWR_ENTER 20 | |
| 56 | #define XFS_SENDFILE_ENTER 21 | |
| 57 | #define XFS_WRITEPAGE_ENTER 22 | |
| 58 | #define XFS_RELEASEPAGE_ENTER 23 | |
| bcec2b7f NS |
59 | #define XFS_INVALIDPAGE_ENTER 24 |
| 60 | #define XFS_IOMAP_ALLOC_ENTER 25 | |
| 61 | #define XFS_IOMAP_ALLOC_MAP 26 | |
| 62 | #define XFS_IOMAP_UNWRITTEN 27 | |
| 1b895840 NS |
63 | #define XFS_SPLICE_READ_ENTER 28 |
| 64 | #define XFS_SPLICE_WRITE_ENTER 29 | |
| 1da177e4 LT |
65 | extern void xfs_rw_enter_trace(int, struct xfs_iocore *, |
| 66 | void *, size_t, loff_t, int); | |
| 67 | extern void xfs_inval_cached_trace(struct xfs_iocore *, | |
| 68 | xfs_off_t, xfs_off_t, xfs_off_t, xfs_off_t); | |
| 69 | #else | |
| 70 | #define xfs_rw_enter_trace(tag, io, data, size, offset, ioflags) | |
| 71 | #define xfs_inval_cached_trace(io, offset, len, first, last) | |
| 72 | #endif | |
| 73 | ||
| 74 | /* | |
| 75 | * Maximum count of bmaps used by read and write paths. | |
| 76 | */ | |
| 77 | #define XFS_MAX_RW_NBMAPS 4 | |
| 78 | ||
| 79 | extern int xfs_bmap(struct bhv_desc *, xfs_off_t, ssize_t, int, | |
| 80 | struct xfs_iomap *, int *); | |
| 81 | extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *); | |
| 82 | extern int xfs_bdstrat_cb(struct xfs_buf *); | |
| 1b895840 | 83 | extern int xfs_dev_is_read_only(struct xfs_mount *, char *); |
| 1da177e4 | 84 | |
| 67fcaa73 | 85 | extern int xfs_zero_eof(struct bhv_vnode *, struct xfs_iocore *, xfs_off_t, |
| 68160161 | 86 | xfs_fsize_t); |
| 1da177e4 LT |
87 | extern ssize_t xfs_read(struct bhv_desc *, struct kiocb *, |
| 88 | const struct iovec *, unsigned int, | |
| 89 | loff_t *, int, struct cred *); | |
| 90 | extern ssize_t xfs_write(struct bhv_desc *, struct kiocb *, | |
| 91 | const struct iovec *, unsigned int, | |
| 92 | loff_t *, int, struct cred *); | |
| cbb7e577 | 93 | extern ssize_t xfs_splice_read(struct bhv_desc *, struct file *, loff_t *, |
| 3a326a2c | 94 | struct pipe_inode_info *, size_t, int, int, |
| 1b895840 | 95 | struct cred *); |
| 3a326a2c | 96 | extern ssize_t xfs_splice_write(struct bhv_desc *, struct pipe_inode_info *, |
| cbb7e577 | 97 | struct file *, loff_t *, size_t, int, int, |
| 1b895840 | 98 | struct cred *); |
| 1da177e4 | 99 | |
| 1da177e4 | 100 | #endif /* __XFS_LRW_H__ */ |