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xfs: do not call xfs_bdstrat_cb in xfs_buf_iodone_callbacks

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xfs_bdstrat_cb only adds a check for a shutdown filesystem over
xfs_buf_iorequest, but xfs_buf_iodone_callbacks just checked for a shut down
filesystem a little earlier.  In addition the shutdown handling in
xfs_bdstrat_cb is not very suitable for this caller.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Christoph Hellwig 2012-07-13 02:24:10 -04:00 committed by Ben Myers
parent 08023d6dbe
commit a2dcf5df5f
3 changed files with 23 additions and 31 deletions
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51
fs/xfs/xfs_buf.c
View File

@ -1049,27 +1049,6 @@ xfs_buf_ioerror_alert(
(__uint64_t)XFS_BUF_ADDR(bp), func, bp->b_error, bp->b_length);
}
int
xfs_bwrite(
struct xfs_buf *bp)
{
int error;
ASSERT(xfs_buf_islocked(bp));
bp->b_flags |= XBF_WRITE;
bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q);
xfs_bdstrat_cb(bp);
error = xfs_buf_iowait(bp);
if (error) {
xfs_force_shutdown(bp->b_target->bt_mount,
SHUTDOWN_META_IO_ERROR);
}
return error;
}
/*
* Called when we want to stop a buffer from getting written or read.
* We attach the EIO error, muck with its flags, and call xfs_buf_ioend
@ -1139,14 +1118,7 @@ xfs_bioerror_relse(
return EIO;
}
/*
* All xfs metadata buffers except log state machine buffers
* get this attached as their b_bdstrat callback function.
* This is so that we can catch a buffer
* after prematurely unpinning it to forcibly shutdown the filesystem.
*/
int
STATIC int
xfs_bdstrat_cb(
struct xfs_buf *bp)
{
@ -1167,6 +1139,27 @@ xfs_bdstrat_cb(
return 0;
}
int
xfs_bwrite(
struct xfs_buf *bp)
{
int error;
ASSERT(xfs_buf_islocked(bp));
bp->b_flags |= XBF_WRITE;
bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q);
xfs_bdstrat_cb(bp);
error = xfs_buf_iowait(bp);
if (error) {
xfs_force_shutdown(bp->b_target->bt_mount,
SHUTDOWN_META_IO_ERROR);
}
return error;
}
/*
* Wrapper around bdstrat so that we can stop data from going to disk in case
* we are shutting down the filesystem. Typically user data goes thru this

1
fs/xfs/xfs_buf.h
View File

@ -250,7 +250,6 @@ extern void xfs_buf_unlock(xfs_buf_t *);
extern int xfs_bwrite(struct xfs_buf *bp);
extern void xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
extern int xfs_bdstrat_cb(struct xfs_buf *);
extern void xfs_buf_ioend(xfs_buf_t *, int);
extern void xfs_buf_ioerror(xfs_buf_t *, int);

2
fs/xfs/xfs_buf_item.c
View File

@ -1101,7 +1101,7 @@ xfs_buf_iodone_callbacks(
if (!XFS_BUF_ISSTALE(bp)) {
bp->b_flags |= XBF_WRITE | XBF_ASYNC | XBF_DONE;
xfs_bdstrat_cb(bp);
xfs_buf_iorequest(bp);
} else {
xfs_buf_relse(bp);
}