diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-06-22 18:22:38 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-08-04 14:09:54 -0700 |
| commit | 244f4fc1c530c4e486f0e4f0909c0514e4539ba2 (patch) | |
| tree | 49b1cd24dc8ebc1743fd4f94ba4df571dbe06e18 | |
| parent | cbe91923a97c96d6a931f4b5b7e32083218a0251 (diff) | |
f2fs: set cached_en after checking finally
This patch relocates cached_en not only to be covered by spin_lock, but also
to set once after checking out completely.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | fs/f2fs/data.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 176e4ad4e5ed..982a1a58efd7 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -453,14 +453,12 @@ static struct extent_node *__lookup_extent_tree(struct extent_tree *et, while (node) { en = rb_entry(node, struct extent_node, rb_node); - if (fofs < en->ei.fofs) { + if (fofs < en->ei.fofs) node = node->rb_left; - } else if (fofs >= en->ei.fofs + en->ei.len) { + else if (fofs >= en->ei.fofs + en->ei.len) node = node->rb_right; - } else { - et->cached_en = en; + else return en; - } } return NULL; } @@ -625,6 +623,7 @@ static bool f2fs_lookup_extent_tree(struct inode *inode, pgoff_t pgofs, spin_lock(&sbi->extent_lock); if (!list_empty(&en->list)) list_move_tail(&en->list, &sbi->extent_list); + et->cached_en = en; spin_unlock(&sbi->extent_lock); stat_inc_read_hit(sbi->sb); } |