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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2016-10-06 08:56:43 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2016-10-06 08:56:43 +0100 |
| commit | 301a36fa700f9add6e14f5a95c7573e01578343a (patch) | |
| tree | 6ff94ff3b08b838353b9127eb5f8055b3de6b25f /fs/xfs/libxfs/xfs_btree.c | |
| parent | b828f960215f02e5d2c88bbd27565c694254a15a (diff) | |
| parent | b60752f2b20c167859943e001727f0d4da419b23 (diff) | |
| download | linux-301a36fa700f9add6e14f5a95c7573e01578343a.tar.bz2 | |
Merge branches 'misc' and 'sa1111-base' into for-linus
Diffstat (limited to 'fs/xfs/libxfs/xfs_btree.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_btree.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index b5c213a051cd..08569792fe20 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -1814,6 +1814,10 @@ xfs_btree_lookup( XFS_BTREE_STATS_INC(cur, lookup); + /* No such thing as a zero-level tree. */ + if (cur->bc_nlevels == 0) + return -EFSCORRUPTED; + block = NULL; keyno = 0; @@ -4554,15 +4558,22 @@ xfs_btree_simple_query_range( if (error) goto out; + /* Nothing? See if there's anything to the right. */ + if (!stat) { + error = xfs_btree_increment(cur, 0, &stat); + if (error) + goto out; + } + while (stat) { /* Find the record. */ error = xfs_btree_get_rec(cur, &recp, &stat); if (error || !stat) break; - cur->bc_ops->init_high_key_from_rec(&rec_key, recp); /* Skip if high_key(rec) < low_key. */ if (firstrec) { + cur->bc_ops->init_high_key_from_rec(&rec_key, recp); firstrec = false; diff = cur->bc_ops->diff_two_keys(cur, low_key, &rec_key); @@ -4571,6 +4582,7 @@ xfs_btree_simple_query_range( } /* Stop if high_key < low_key(rec). */ + cur->bc_ops->init_key_from_rec(&rec_key, recp); diff = cur->bc_ops->diff_two_keys(cur, &rec_key, high_key); if (diff > 0) break; |