From: Zhao Lei <zhaolei@xxxxxxxxxxxxxx>
read_extent_buffer_pages() should return error value instead of 0 when
lock page failed, we fix this problem.
Signed-off-by: Zhao Lei <zhaolei@xxxxxxxxxxxxxx>
Signed-off-by: Miao Xie <miaox@xxxxxxxxxxxxxx>
---
fs/btrfs/extent_io.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index bdfbfa6..3194c79 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3419,8 +3419,10 @@ int read_extent_buffer_pages(struct extent_io_tree *tree,
for (i = start_i; i < num_pages; i++) {
page = extent_buffer_page(eb, i);
if (!wait) {
- if (!trylock_page(page))
+ if (!trylock_page(page)) {
+ ret = -EIO;
goto unlock_exit;
+ }
} else {
lock_page(page);
}
--
1.6.5.2
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