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authorYan <yanzheng@21cn.com>2008-01-22 12:46:56 -0500
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:03:59 -0400
commitf0c5da1446cc500856a5e31c9a0e2a7bdd30e663 (patch)
treec780414d086f5aa91c65e1471dbeb575d2d08447 /fs/btrfs/extent_map.c
parentb17854275cd297d40c6c5562fa44a472314c6c7f (diff)
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.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index d71aed341ab..485cf0719b3 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;