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xfs: fix error handling at xfs_bulkstat 

From: Jie Liu <jeff.liu@oracle.com>

We should not ignore the btree operation errors at xfs_bulkstat() but
to propagate them if any. This patch fix two places in this function
and the remaining things will be fixed with code refactoring thereafter.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Jie Liu 2014-07-24 18:40:43 +10:00 committed by Dave Chinner
parent 296dfd7fdb
commit d4c2734875
1 changed files with 6 additions and 31 deletions
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37
fs/xfs/xfs_itable.c
View File

@ -253,14 +253,8 @@ xfs_bulkstat(
while (XFS_BULKSTAT_UBLEFT(ubleft) && agno < mp->m_sb.sb_agcount) {
cond_resched();
error = xfs_ialloc_read_agi(mp, NULL, agno, &agbp);
if (error) {
/*
* Skip this allocation group and go to the next one.
*/
agno++;
agino = 0;
continue;
}
if (error)
break;
agi = XFS_BUF_TO_AGI(agbp);
/*
* Allocate and initialize a btree cursor for ialloc btree.
@ -332,34 +326,15 @@ xfs_bulkstat(
error = xfs_inobt_lookup(cur, 0, XFS_LOOKUP_GE, &tmp);
icount = 0;
}
if (error)
break;
/*
* Loop through inode btree records in this ag,
* until we run out of inodes or space in the buffer.
*/
while (irbp < irbufend && icount < ubcount) {
xfs_inobt_rec_incore_t r;
/*
* Loop as long as we're unable to read the
* inode btree.
*/
while (error) {
agino += XFS_INODES_PER_CHUNK;
if (XFS_AGINO_TO_AGBNO(mp, agino) >=
be32_to_cpu(agi->agi_length))
break;
error = xfs_inobt_lookup(cur, agino,
XFS_LOOKUP_GE, &tmp);
cond_resched();
}
/*
* If ran off the end of the ag either with an error,
* or the normal way, set end and stop collecting.
*/
if (error) {
end_of_ag = 1;
break;
}
struct xfs_inobt_rec_incore r;
error = xfs_inobt_get_rec(cur, &r, &i);
if (error || i == 0) {