The btree_get_extent function (in file disk-io.c) calls the
add_extent_mapping (in file extent_map.c). The add_extent_mapping
function can return two values: 0 or -EEXIST.
After the call, it is used an if-else if statement. If the result is
-EEXIST, the if statement is executed. If the result is 0, the else if
statement will not be executed because it is false.
Thank you.
Signed-off-by: Andre Nogueira <andre.neo.net@xxxxxxxxx>
---
fs/btrfs/disk-io.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 34f7c37..76eb161 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -164,7 +164,7 @@ static struct extent_map *btree_get_extent(struct
inode *inode,
failed_len);
ret = -EIO;
}
- } else if (ret) {
+ } else {
free_extent_map(em);
em = NULL;
}
--
1.6.3.3
--
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