Btrfs: Search for all ordered extents that could span across a page
In subpagesize-blocksize scenario it is not sufficient to search using the
first byte of the page to make sure that there are no ordered extents
present across the page. Fix this.
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 2e7c97a..1b20733 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3186,7 +3186,8 @@
while (1) {
lock_extent(tree, start, end);
- ordered = btrfs_lookup_ordered_extent(inode, start);
+ ordered = btrfs_lookup_ordered_range(inode, start,
+ PAGE_CACHE_SIZE);
if (!ordered)
break;
unlock_extent(tree, start, end);