projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 1da177e4 | 2 | /* |
| 7b718769 NS |
3 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
| 4 | * All Rights Reserved. | |
| 1da177e4 LT |
5 | */ |
| 6 | #ifndef __XFS_BUF_ITEM_H__ | |
| 7 | #define __XFS_BUF_ITEM_H__ | |
| 8 | ||
| a8da0da2 | 9 | /* kernel only definitions */ |
| 77c1a08f | 10 | |
| a8da0da2 | 11 | /* buf log item flags */ |
| 1da177e4 LT |
12 | #define XFS_BLI_HOLD 0x01 |
| 13 | #define XFS_BLI_DIRTY 0x02 | |
| 14 | #define XFS_BLI_STALE 0x04 | |
| 15 | #define XFS_BLI_LOGGED 0x08 | |
| 16 | #define XFS_BLI_INODE_ALLOC_BUF 0x10 | |
| 17 | #define XFS_BLI_STALE_INODE 0x20 | |
| ccf7c23f | 18 | #define XFS_BLI_INODE_BUF 0x40 |
| 5f6bed76 | 19 | #define XFS_BLI_ORDERED 0x80 |
| 1da177e4 | 20 | |
| 0b1b213f CH |
21 | #define XFS_BLI_FLAGS \ |
| 22 | { XFS_BLI_HOLD, "HOLD" }, \ | |
| 23 | { XFS_BLI_DIRTY, "DIRTY" }, \ | |
| 24 | { XFS_BLI_STALE, "STALE" }, \ | |
| 25 | { XFS_BLI_LOGGED, "LOGGED" }, \ | |
| 26 | { XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \ | |
| ccf7c23f | 27 | { XFS_BLI_STALE_INODE, "STALE_INODE" }, \ |
| 5f6bed76 DC |
28 | { XFS_BLI_INODE_BUF, "INODE_BUF" }, \ |
| 29 | { XFS_BLI_ORDERED, "ORDERED" } | |
| 0b1b213f | 30 | |
| 1da177e4 | 31 | |
| 1da177e4 | 32 | struct xfs_buf; |
| 1da177e4 LT |
33 | struct xfs_mount; |
| 34 | struct xfs_buf_log_item; | |
| 35 | ||
| 1da177e4 LT |
36 | /* |
| 37 | * This is the in core log item structure used to track information | |
| 38 | * needed to log buffers. It tracks how many times the lock has been | |
| 39 | * locked, and which 128 byte chunks of the buffer are dirty. | |
| 40 | */ | |
| 70a20655 | 41 | struct xfs_buf_log_item { |
| 1da177e4 LT |
42 | xfs_log_item_t bli_item; /* common item structure */ |
| 43 | struct xfs_buf *bli_buf; /* real buffer pointer */ | |
| 44 | unsigned int bli_flags; /* misc flags */ | |
| 45 | unsigned int bli_recur; /* lock recursion count */ | |
| 46 | atomic_t bli_refcount; /* cnt of tp refs */ | |
| 372cc85e DC |
47 | int bli_format_count; /* count of headers */ |
| 48 | struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */ | |
| b9438173 | 49 | struct xfs_buf_log_format __bli_format; /* embedded in-log header */ |
| 70a20655 | 50 | }; |
| 1da177e4 | 51 | |
| f79af0b9 | 52 | int xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *); |
| 1da177e4 | 53 | void xfs_buf_item_relse(struct xfs_buf *); |
| 95808459 | 54 | bool xfs_buf_item_put(struct xfs_buf_log_item *); |
| 70a20655 | 55 | void xfs_buf_item_log(struct xfs_buf_log_item *, uint, uint); |
| 6453c65d | 56 | bool xfs_buf_item_dirty_format(struct xfs_buf_log_item *); |
| 1da177e4 LT |
57 | void xfs_buf_attach_iodone(struct xfs_buf *, |
| 58 | void(*)(struct xfs_buf *, xfs_log_item_t *), | |
| 59 | xfs_log_item_t *); | |
| 60 | void xfs_buf_iodone_callbacks(struct xfs_buf *); | |
| ca30b2a7 | 61 | void xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *); |
| d3a304b6 | 62 | bool xfs_buf_resubmit_failed_buffers(struct xfs_buf *, |
| d3a304b6 | 63 | struct list_head *); |
| 1da177e4 | 64 | |
| a8da0da2 | 65 | extern kmem_zone_t *xfs_buf_item_zone; |
| 1da177e4 LT |
66 | |
| 67 | #endif /* __XFS_BUF_ITEM_H__ */ |