We can't touch the eb directly in case the function is called with a
non-zero error, so we can read the eb level when needed.
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
---
fs/btrfs/reada.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 75bab76739be..378043823dca 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -109,16 +109,12 @@ static void __readahead_hook(struct btrfs_fs_info *fs_info,
struct reada_extent *re, struct extent_buffer *eb,
u64 start, int err)
{
- int level = 0;
int nritems;
int i;
u64 bytenr;
u64 generation;
struct list_head list;
- if (eb)
- level = btrfs_header_level(eb);
-
spin_lock(&re->lock);
/*
* just take the full list from the extent. afterwards we
@@ -143,7 +139,7 @@ static void __readahead_hook(struct btrfs_fs_info *fs_info,
* trigger more readahead depending from the content, e.g.
* fetch the checksums for the extents in the leaf.
*/
- if (!level)
+ if (!btrfs_header_level(eb))
goto cleanup;
nritems = btrfs_header_nritems(eb);
--
2.10.1
--
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