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Subject[PATCH 4/4] Btrfs: fix the comment for find_first_extent_bit
The return value of find_first_extent_bit is 1 or 0, no < 0.
And if found something, return 0; if nothing was found, return 1.
Fix the comment.

Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
---
fs/btrfs/extent_io.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index ddfc1d5..26fbe1c 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1288,7 +1288,7 @@ out:
* returned if we find something, and *start_ret and *end_ret are
* set to reflect the state struct that was found.
*
- * If nothing was found, 1 is returned, < 0 on error
+ * If nothing was found, 1 is returned. If found something, return 0.
*/
int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, int bits)
--
1.7.1


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