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xfs: call xfs_buf_delwri_queue directly

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Unify the ways we add buffers to the delwri queue by always calling
xfs_buf_delwri_queue directly.  The xfs_bdwrite functions is removed and
opencoded in its callers, and the two places setting XBF_DELWRI while a
buffer is locked and expecting xfs_buf_unlock to pick it up are converted
to call xfs_buf_delwri_queue directly, too.  Also replace the
XFS_BUF_UNDELAYWRITE macro with direct calls to xfs_buf_delwri_dequeue
to make the explicit queuing/dequeuing more obvious.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Christoph Hellwig
2011-08-23 08:28:06 +00:00
committed by Alex Elder
parent 5a8ee6bafd
commit 61551f1ee5
12 changed files with 30 additions and 39 deletions
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8
fs/xfs/xfs_buf.h
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@@ -198,7 +198,6 @@ extern void xfs_buf_unlock(xfs_buf_t *);
/* Buffer Read and Write Routines */
extern int xfs_bwrite(struct xfs_mount *mp, struct xfs_buf *bp);
extern void xfs_bdwrite(void *mp, xfs_buf_t *bp);
extern void xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
extern int xfs_bdstrat_cb(struct xfs_buf *);
@@ -221,8 +220,9 @@ static inline int xfs_buf_geterror(xfs_buf_t *bp)
extern xfs_caddr_t xfs_buf_offset(xfs_buf_t *, size_t);
/* Delayed Write Buffer Routines */
extern void xfs_buf_delwri_dequeue(xfs_buf_t *);
extern void xfs_buf_delwri_promote(xfs_buf_t *);
extern void xfs_buf_delwri_queue(struct xfs_buf *);
extern void xfs_buf_delwri_dequeue(struct xfs_buf *);
extern void xfs_buf_delwri_promote(struct xfs_buf *);
/* Buffer Daemon Setup Routines */
extern int xfs_buf_init(void);
@@ -251,8 +251,6 @@ void xfs_buf_stale(struct xfs_buf *bp);
XFS_BUF_DONE(bp); \
} while (0)
#define XFS_BUF_DELAYWRITE(bp) ((bp)->b_flags |= XBF_DELWRI)
#define XFS_BUF_UNDELAYWRITE(bp) xfs_buf_delwri_dequeue(bp)
#define XFS_BUF_ISDELAYWRITE(bp) ((bp)->b_flags & XBF_DELWRI)
#define XFS_BUF_DONE(bp) ((bp)->b_flags |= XBF_DONE)