btrfs: ->submit_bio_hook error push-up
This pushes failures from the submit_bio_hook callbacks,
btrfs_submit_bio_hook and btree_submit_bio_hook into the callers, including
callers of submit_one_bio where it catches the failures with BUG_ON.
It also pushes up through the ->readpage_io_failed_hook to
end_bio_extent_writepage where the error is already caught with BUG_ON.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ad1e88d..5394bdb 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1488,7 +1488,8 @@
metadata = 2;
ret = btrfs_bio_wq_end_io(root->fs_info, bio, metadata);
- BUG_ON(ret);
+ if (ret)
+ return ret;
if (!(rw & REQ_WRITE)) {
if (bio_flags & EXTENT_BIO_COMPRESSED) {