mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 15:13:55 +08:00
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>
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2000,2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*/
|
|
#ifndef __XFS_INODE_ITEM_H__
|
|
#define __XFS_INODE_ITEM_H__
|
|
|
|
/* kernel only definitions */
|
|
|
|
struct xfs_buf;
|
|
struct xfs_bmbt_rec;
|
|
struct xfs_inode;
|
|
struct xfs_mount;
|
|
|
|
struct xfs_inode_log_item {
|
|
struct xfs_log_item ili_item; /* common portion */
|
|
struct xfs_inode *ili_inode; /* inode ptr */
|
|
unsigned short ili_lock_flags; /* inode lock flags */
|
|
/*
|
|
* The ili_lock protects the interactions between the dirty state and
|
|
* the flush state of the inode log item. This allows us to do atomic
|
|
* modifications of multiple state fields without having to hold a
|
|
* specific inode lock to serialise them.
|
|
*
|
|
* We need atomic changes between inode dirtying, inode flushing and
|
|
* inode completion, but these all hold different combinations of
|
|
* ILOCK and IFLUSHING and hence we need some other method of
|
|
* serialising updates to the flush state.
|
|
*/
|
|
spinlock_t ili_lock; /* flush state lock */
|
|
unsigned int ili_last_fields; /* fields when flushed */
|
|
unsigned int ili_fields; /* fields to be logged */
|
|
unsigned int ili_fsync_fields; /* logged since last fsync */
|
|
xfs_lsn_t ili_flush_lsn; /* lsn at last flush */
|
|
xfs_lsn_t ili_last_lsn; /* lsn at last transaction */
|
|
};
|
|
|
|
static inline int xfs_inode_clean(struct xfs_inode *ip)
|
|
{
|
|
return !ip->i_itemp || !(ip->i_itemp->ili_fields & XFS_ILOG_ALL);
|
|
}
|
|
|
|
extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
|
|
extern void xfs_inode_item_destroy(struct xfs_inode *);
|
|
extern void xfs_iflush_abort(struct xfs_inode *);
|
|
extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
|
|
struct xfs_inode_log_format *);
|
|
|
|
extern struct kmem_zone *xfs_ili_zone;
|
|
|
|
#endif /* __XFS_INODE_ITEM_H__ */
|