diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-08-26 02:00:10 -0400 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-08-26 02:00:10 -0400 |
| commit | 5b5c2dbd3c9bcfa89fba9709c12ecc0a445c6e40 (patch) | |
| tree | 25a2ac8152c5aba5ffcdeb774c7baee21c2107fd | |
| parent | 722278997bc964349e23e7061d541f8df3133a04 (diff) | |
xfs: simple btree query range should look right if LE lookup fails
If the initial LOOKUP_LE in the simple query range fails to find
anything, we should attempt to increment the btree cursor to see
if there actually /are/ records for what we're trying to find.
Without this patch, a bnobt range query of (0, $agsize) returns
no results because the leftmost record never has a startblock
of zero.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
| -rw-r--r-- | fs/xfs/libxfs/xfs_btree.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index b70d9f918156..08569792fe20 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c | |||
| @@ -4558,6 +4558,13 @@ xfs_btree_simple_query_range( | |||
| 4558 | if (error) | 4558 | if (error) |
| 4559 | goto out; | 4559 | goto out; |
| 4560 | 4560 | ||
| 4561 | /* Nothing? See if there's anything to the right. */ | ||
| 4562 | if (!stat) { | ||
| 4563 | error = xfs_btree_increment(cur, 0, &stat); | ||
| 4564 | if (error) | ||
| 4565 | goto out; | ||
| 4566 | } | ||
| 4567 | |||
| 4561 | while (stat) { | 4568 | while (stat) { |
| 4562 | /* Find the record. */ | 4569 | /* Find the record. */ |
| 4563 | error = xfs_btree_get_rec(cur, &recp, &stat); | 4570 | error = xfs_btree_get_rec(cur, &recp, &stat); |