mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
664ffb8a42
Move the buffer retry state machine logic to xfs_buf.c and call it once from xfs_ioend instead of duplicating it three times for the three kinds of buffers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
// 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 {
|
|
struct xfs_log_item 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_done(struct xfs_buf *bp);
|
|
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_inode_iodone(struct xfs_buf *);
|
|
void xfs_buf_inode_io_fail(struct xfs_buf *bp);
|
|
#ifdef CONFIG_XFS_QUOTA
|
|
void xfs_buf_dquot_iodone(struct xfs_buf *);
|
|
void xfs_buf_dquot_io_fail(struct xfs_buf *bp);
|
|
#else
|
|
static inline void xfs_buf_dquot_iodone(struct xfs_buf *bp)
|
|
{
|
|
}
|
|
static inline void xfs_buf_dquot_io_fail(struct xfs_buf *bp)
|
|
{
|
|
}
|
|
#endif /* CONFIG_XFS_QUOTA */
|
|
void xfs_buf_iodone(struct xfs_buf *);
|
|
bool xfs_buf_log_check_iovec(struct xfs_log_iovec *iovec);
|
|
|
|
extern kmem_zone_t *xfs_buf_item_zone;
|
|
|
|
#endif /* __XFS_BUF_ITEM_H__ */
|