projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 7b718769 NS |
2 | * Copyright (c) 2000-2001,2005 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_BUF_ITEM_H__ | |
| 19 | #define __XFS_BUF_ITEM_H__ | |
| 20 | ||
| a8da0da2 | 21 | /* kernel only definitions */ |
| 77c1a08f | 22 | |
| a8da0da2 | 23 | /* buf log item flags */ |
| 1da177e4 LT |
24 | #define XFS_BLI_HOLD 0x01 |
| 25 | #define XFS_BLI_DIRTY 0x02 | |
| 26 | #define XFS_BLI_STALE 0x04 | |
| 27 | #define XFS_BLI_LOGGED 0x08 | |
| 28 | #define XFS_BLI_INODE_ALLOC_BUF 0x10 | |
| 29 | #define XFS_BLI_STALE_INODE 0x20 | |
| ccf7c23f | 30 | #define XFS_BLI_INODE_BUF 0x40 |
| 5f6bed76 | 31 | #define XFS_BLI_ORDERED 0x80 |
| 1da177e4 | 32 | |
| 0b1b213f CH |
33 | #define XFS_BLI_FLAGS \ |
| 34 | { XFS_BLI_HOLD, "HOLD" }, \ | |
| 35 | { XFS_BLI_DIRTY, "DIRTY" }, \ | |
| 36 | { XFS_BLI_STALE, "STALE" }, \ | |
| 37 | { XFS_BLI_LOGGED, "LOGGED" }, \ | |
| 38 | { XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \ | |
| ccf7c23f | 39 | { XFS_BLI_STALE_INODE, "STALE_INODE" }, \ |
| 5f6bed76 DC |
40 | { XFS_BLI_INODE_BUF, "INODE_BUF" }, \ |
| 41 | { XFS_BLI_ORDERED, "ORDERED" } | |
| 0b1b213f | 42 | |
| 1da177e4 | 43 | |
| 1da177e4 | 44 | struct xfs_buf; |
| 1da177e4 LT |
45 | struct xfs_mount; |
| 46 | struct xfs_buf_log_item; | |
| 47 | ||
| 1da177e4 LT |
48 | /* |
| 49 | * This is the in core log item structure used to track information | |
| 50 | * needed to log buffers. It tracks how many times the lock has been | |
| 51 | * locked, and which 128 byte chunks of the buffer are dirty. | |
| 52 | */ | |
| 53 | typedef struct xfs_buf_log_item { | |
| 54 | xfs_log_item_t bli_item; /* common item structure */ | |
| 55 | struct xfs_buf *bli_buf; /* real buffer pointer */ | |
| 56 | unsigned int bli_flags; /* misc flags */ | |
| 57 | unsigned int bli_recur; /* lock recursion count */ | |
| 58 | atomic_t bli_refcount; /* cnt of tp refs */ | |
| 372cc85e DC |
59 | int bli_format_count; /* count of headers */ |
| 60 | struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */ | |
| b9438173 | 61 | struct xfs_buf_log_format __bli_format; /* embedded in-log header */ |
| 1da177e4 LT |
62 | } xfs_buf_log_item_t; |
| 63 | ||
| 1da177e4 LT |
64 | void xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *); |
| 65 | void xfs_buf_item_relse(struct xfs_buf *); | |
| 66 | void xfs_buf_item_log(xfs_buf_log_item_t *, uint, uint); | |
| 67 | uint xfs_buf_item_dirty(xfs_buf_log_item_t *); | |
| 68 | void xfs_buf_attach_iodone(struct xfs_buf *, | |
| 69 | void(*)(struct xfs_buf *, xfs_log_item_t *), | |
| 70 | xfs_log_item_t *); | |
| 71 | void xfs_buf_iodone_callbacks(struct xfs_buf *); | |
| ca30b2a7 | 72 | void xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *); |
| 1da177e4 | 73 | |
| 61fe135c DC |
74 | void xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *, |
| 75 | enum xfs_blft); | |
| 76 | void xfs_trans_buf_copy_type(struct xfs_buf *dst_bp, struct xfs_buf *src_bp); | |
| 77 | ||
| a8da0da2 | 78 | extern kmem_zone_t *xfs_buf_item_zone; |
| 1da177e4 LT |
79 | |
| 80 | #endif /* __XFS_BUF_ITEM_H__ */ |