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| author | Yan <yanzheng@21cn.com> | 2008-01-22 20:46:56 +0300 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 19:03:59 +0400 |
| commit | f0c5da1446cc500856a5e31c9a0e2a7bdd30e663 (patch) | |
| tree | c780414d086f5aa91c65e1471dbeb575d2d08447 /fs/btrfs/extent_map.c | |
| parent | b17854275cd297d40c6c5562fa44a472314c6c7f (diff) | |
| download | linux-f0c5da1446cc500856a5e31c9a0e2a7bdd30e663.tar.xz | |
Btrfs: Fix for test_range_bit
test_range_bit doesn't properly handle the case: there's a hole at the
end of the range and there's no other extent_state after the range.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent_map.c')
| -rw-r--r-- | fs/btrfs/extent_map.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index d71aed341abd..485cf0719b3c 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -1336,6 +1336,11 @@ int test_range_bit(struct extent_map_tree *tree, u64 start, u64 end, if (start > end) break; node = rb_next(node); + if (!node) { + if (filled) + bitset = 0; + break; + } } read_unlock_irq(&tree->lock); return bitset; |