btrfs: btrfs_bio_alloc never fails, skip error handling

Update direct callers of btrfs_bio_alloc that do error handling, that we
can now remove.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 9ff3e78..e15bd02 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2808,9 +2808,6 @@ static int submit_extent_page(int op, int op_flags, struct extent_io_tree *tree,
 
        bio = btrfs_bio_alloc(bdev, sector, BIO_MAX_PAGES,
                        GFP_NOFS | __GFP_HIGH);
-       if (!bio)
-               return -ENOMEM;
-
        bio_add_page(bio, page, page_size, offset);
        bio->bi_end_io = end_io_func;
        bio->bi_private = tree;