projects / linux-block.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 | |
| 581b4484 DC |
11 | struct xfs_buf; |
| 12 | struct xfs_mount; | |
| 13 | ||
| a8da0da2 | 14 | /* buf log item flags */ |
| 581b4484 DC |
15 | #define XFS_BLI_HOLD (1u << 0) |
| 16 | #define XFS_BLI_DIRTY (1u << 1) | |
| 17 | #define XFS_BLI_STALE (1u << 2) | |
| 18 | #define XFS_BLI_LOGGED (1u << 3) | |
| 19 | #define XFS_BLI_INODE_ALLOC_BUF (1u << 4) | |
| 20 | #define XFS_BLI_STALE_INODE (1u << 5) | |
| 21 | #define XFS_BLI_INODE_BUF (1u << 6) | |
| 22 | #define XFS_BLI_ORDERED (1u << 7) | |
| 1da177e4 | 23 | |
| 0b1b213f CH |
24 | #define XFS_BLI_FLAGS \ |
| 25 | { XFS_BLI_HOLD, "HOLD" }, \ | |
| 26 | { XFS_BLI_DIRTY, "DIRTY" }, \ | |
| 27 | { XFS_BLI_STALE, "STALE" }, \ | |
| 28 | { XFS_BLI_LOGGED, "LOGGED" }, \ | |
| 29 | { XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \ | |
| ccf7c23f | 30 | { XFS_BLI_STALE_INODE, "STALE_INODE" }, \ |
| 5f6bed76 DC |
31 | { XFS_BLI_INODE_BUF, "INODE_BUF" }, \ |
| 32 | { XFS_BLI_ORDERED, "ORDERED" } | |
| 0b1b213f | 33 | |
| 1da177e4 LT |
34 | /* |
| 35 | * This is the in core log item structure used to track information | |
| 36 | * needed to log buffers. It tracks how many times the lock has been | |
| 37 | * locked, and which 128 byte chunks of the buffer are dirty. | |
| 38 | */ | |
| 70a20655 | 39 | struct xfs_buf_log_item { |
| efe2330f | 40 | struct xfs_log_item bli_item; /* common item structure */ |
| 1da177e4 LT |
41 | struct xfs_buf *bli_buf; /* real buffer pointer */ |
| 42 | unsigned int bli_flags; /* misc flags */ | |
| 43 | unsigned int bli_recur; /* lock recursion count */ | |
| 44 | atomic_t bli_refcount; /* cnt of tp refs */ | |
| 372cc85e DC |
45 | int bli_format_count; /* count of headers */ |
| 46 | struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */ | |
| b9438173 | 47 | struct xfs_buf_log_format __bli_format; /* embedded in-log header */ |
| 70a20655 | 48 | }; |
| 1da177e4 | 49 | |
| f79af0b9 | 50 | int xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *); |
| 664ffb8a | 51 | void xfs_buf_item_done(struct xfs_buf *bp); |
| 1da177e4 | 52 | void xfs_buf_item_relse(struct xfs_buf *); |
| 95808459 | 53 | bool xfs_buf_item_put(struct xfs_buf_log_item *); |
| 70a20655 | 54 | void xfs_buf_item_log(struct xfs_buf_log_item *, uint, uint); |
| 6453c65d | 55 | bool xfs_buf_item_dirty_format(struct xfs_buf_log_item *); |
| f593bf14 | 56 | void xfs_buf_inode_iodone(struct xfs_buf *); |
| 664ffb8a CH |
57 | void xfs_buf_inode_io_fail(struct xfs_buf *bp); |
| 58 | #ifdef CONFIG_XFS_QUOTA | |
| 0c7e5afb | 59 | void xfs_buf_dquot_iodone(struct xfs_buf *); |
| 664ffb8a CH |
60 | void xfs_buf_dquot_io_fail(struct xfs_buf *bp); |
| 61 | #else | |
| 62 | static inline void xfs_buf_dquot_iodone(struct xfs_buf *bp) | |
| 63 | { | |
| 64 | } | |
| 65 | static inline void xfs_buf_dquot_io_fail(struct xfs_buf *bp) | |
| 66 | { | |
| 67 | } | |
| 68 | #endif /* CONFIG_XFS_QUOTA */ | |
| b01d1461 | 69 | void xfs_buf_iodone(struct xfs_buf *); |
| 8a6453a8 | 70 | bool xfs_buf_log_check_iovec(struct xfs_log_iovec *iovec); |
| 1da177e4 | 71 | |
| 182696fb | 72 | extern struct kmem_cache *xfs_buf_item_cache; |
| 1da177e4 LT |
73 | |
| 74 | #endif /* __XFS_BUF_ITEM_H__ */ |