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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /fs/xfs/xfs_buf_item.h | |
| parent | Initial commit. (diff) | |
| download | linux-upstream/4.19.249.tar.xz linux-upstream/4.19.249.zip | |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'fs/xfs/xfs_buf_item.h')
| -rw-r--r-- | fs/xfs/xfs_buf_item.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h new file mode 100644 index 000000000..90f65f891 --- /dev/null +++ b/fs/xfs/xfs_buf_item.h @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. + * All Rights Reserved. + */ +#ifndef __XFS_BUF_ITEM_H__ +#define __XFS_BUF_ITEM_H__ + +/* kernel only definitions */ + +/* buf log item flags */ +#define XFS_BLI_HOLD 0x01 +#define XFS_BLI_DIRTY 0x02 +#define XFS_BLI_STALE 0x04 +#define XFS_BLI_LOGGED 0x08 +#define XFS_BLI_INODE_ALLOC_BUF 0x10 +#define XFS_BLI_STALE_INODE 0x20 +#define XFS_BLI_INODE_BUF 0x40 +#define XFS_BLI_ORDERED 0x80 + +#define XFS_BLI_FLAGS \ + { XFS_BLI_HOLD, "HOLD" }, \ + { XFS_BLI_DIRTY, "DIRTY" }, \ + { XFS_BLI_STALE, "STALE" }, \ + { XFS_BLI_LOGGED, "LOGGED" }, \ + { XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \ + { XFS_BLI_STALE_INODE, "STALE_INODE" }, \ + { XFS_BLI_INODE_BUF, "INODE_BUF" }, \ + { XFS_BLI_ORDERED, "ORDERED" } + + +struct xfs_buf; +struct xfs_mount; +struct xfs_buf_log_item; + +/* + * This is the in core log item structure used to track information + * needed to log buffers. It tracks how many times the lock has been + * locked, and which 128 byte chunks of the buffer are dirty. + */ +struct xfs_buf_log_item { + xfs_log_item_t bli_item; /* common item structure */ + struct xfs_buf *bli_buf; /* real buffer pointer */ + unsigned int bli_flags; /* misc flags */ + unsigned int bli_recur; /* lock recursion count */ + atomic_t bli_refcount; /* cnt of tp refs */ + int bli_format_count; /* count of headers */ + struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */ + struct xfs_buf_log_format __bli_format; /* embedded in-log header */ +}; + +int xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *); +void xfs_buf_item_relse(struct xfs_buf *); +bool xfs_buf_item_put(struct xfs_buf_log_item *); +void xfs_buf_item_log(struct xfs_buf_log_item *, uint, uint); +bool xfs_buf_item_dirty_format(struct xfs_buf_log_item *); +void xfs_buf_attach_iodone(struct xfs_buf *, + void(*)(struct xfs_buf *, xfs_log_item_t *), + xfs_log_item_t *); +void xfs_buf_iodone_callbacks(struct xfs_buf *); +void xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *); +bool xfs_buf_resubmit_failed_buffers(struct xfs_buf *, + struct list_head *); + +extern kmem_zone_t *xfs_buf_item_zone; + +#endif /* __XFS_BUF_ITEM_H__ */ |