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xfs: kill xfs_bioerror_relse

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There is only one caller now - xfs_trans_read_buf_map() - and it has
very well defined call semantics - read, synchronous, and b_iodone
is NULL. Hence it's pretty clear what error handling is necessary
for this case. The bigger problem of untangling
xfs_trans_read_buf_map error handling is left to a future patch.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Dave Chinner 2014-10-02 09:05:05 +10:00 committed by Dave Chinner
parent 2718775469
commit 8b131973d1
3 changed files with 6 additions and 44 deletions
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39
fs/xfs/xfs_buf.c
View File

@ -1074,45 +1074,6 @@ xfs_buf_ioerror_alert(
(__uint64_t)XFS_BUF_ADDR(bp), func, -bp->b_error, bp->b_length);
}
/*
* Same as xfs_bioerror, except that we are releasing the buffer
* here ourselves, and avoiding the xfs_buf_ioend call.
* This is meant for userdata errors; metadata bufs come with
* iodone functions attached, so that we can track down errors.
*/
int
xfs_bioerror_relse(
struct xfs_buf *bp)
{
int64_t fl = bp->b_flags;
/*
* No need to wait until the buffer is unpinned.
* We aren't flushing it.
*
* chunkhold expects B_DONE to be set, whether
* we actually finish the I/O or not. We don't want to
* change that interface.
*/
XFS_BUF_UNREAD(bp);
XFS_BUF_DONE(bp);
xfs_buf_stale(bp);
bp->b_iodone = NULL;
if (!(fl & XBF_ASYNC)) {
/*
* Mark b_error and B_ERROR _both_.
* Lot's of chunkcache code assumes that.
* There's no reason to mark error for
* ASYNC buffers.
*/
xfs_buf_ioerror(bp, -EIO);
complete(&bp->b_iowait);
} else {
xfs_buf_relse(bp);
}
return -EIO;
}
int
xfs_bwrite(
struct xfs_buf *bp)

2
fs/xfs/xfs_buf.h
View File

@ -297,8 +297,6 @@ extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *,
#define xfs_buf_zero(bp, off, len) \
xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO)
extern int xfs_bioerror_relse(struct xfs_buf *);
/* Buffer Utility Routines */
extern xfs_caddr_t xfs_buf_offset(xfs_buf_t *, size_t);

9
fs/xfs/xfs_trans_buf.c
View File

@ -324,11 +324,14 @@ xfs_trans_read_buf_map(
*/
if (XFS_FORCED_SHUTDOWN(mp)) {
trace_xfs_bdstrat_shut(bp, _RET_IP_);
xfs_bioerror_relse(bp);
} else {
xfs_buf_iorequest(bp);
bp->b_flags &= ~(XBF_READ | XBF_DONE);
xfs_buf_ioerror(bp, -EIO);
xfs_buf_stale(bp);
xfs_buf_relse(bp);
return -EIO;
}
xfs_buf_iorequest(bp);
error = xfs_buf_iowait(bp);
if (error) {
xfs_buf_ioerror_alert(bp, __func__);