btrfs: Handle btrfs_set_extent_delalloc failure in relocate_file_extent_cluster

Essentially duplicate the error handling from the above block which
handles the !PageUptodate(page) case and additionally clear
EXTENT_BOUNDARY.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 16 insertions, 2 deletions

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index f0c3f00e97cb..cd2298d185dd 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3268,8 +3268,22 @@ static int relocate_file_extent_cluster(struct inode *inode,
                         nr++;
                 }
 
-                btrfs_set_extent_delalloc(inode, page_start, page_end, 0, NULL,
-                                          0);
+                ret = btrfs_set_extent_delalloc(inode, page_start, page_end, 0,
+                                                NULL, 0);
+                if (ret) {
+                        unlock_page(page);
+                        put_page(page);
+                        btrfs_delalloc_release_metadata(BTRFS_I(inode),
+                                                         PAGE_SIZE);
+                        btrfs_delalloc_release_extents(BTRFS_I(inode),
+                                                       PAGE_SIZE);
+
+                        clear_extent_bits(&BTRFS_I(inode)->io_tree,
+                                          page_start, page_end,
+                                          EXTENT_LOCKED | EXTENT_BOUNDARY);
+                        goto out;
+
+                }
                 set_page_dirty(page);
 
                 unlock_extent(&BTRFS_I(inode)->io_tree,