[09/18] btrfs: Fix return value of read_extent_buffer_pages() when lock page failed

Commit Message

Miao Xie March 25, 2010, 12:33 p.m. UTC

None

Patch

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);
 		}