Commit 20c9801d authored by David Sterba's avatar David Sterba
Browse files

btrfs: drop checks for mandatory extent_io_ops callbacks 



We know that eadpage_end_io_hook, submit_bio_hook and merge_bio_hook are
always defined so we can drop the checks before we call them.

Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 4d53dddb

fs/btrfs/extent_io.c

+3 −4
Original line number Diff line number Diff line
@@ -2567,8 +2567,7 @@ static void end_bio_extent_readpage(struct bio *bio) 
		len = bvec->bv_len;



		mirror = io_bio->mirror_num;

		if (likely(uptodate && tree->ops &&

			   tree->ops->readpage_end_io_hook)) {

		if (likely(uptodate && tree->ops)) {

			ret = tree->ops->readpage_end_io_hook(io_bio, offset,

							      page, start, end,

							      mirror);
@@ -2731,7 +2730,7 @@ static int __must_check submit_one_bio(struct bio *bio, int mirror_num, 
	bio->bi_private = NULL;

	bio_get(bio);



	if (tree->ops && tree->ops->submit_bio_hook)

	if (tree->ops)

		ret = tree->ops->submit_bio_hook(page->mapping->host, bio,

					   mirror_num, bio_flags, start);

	else
@@ -2746,7 +2745,7 @@ static int merge_bio(struct extent_io_tree *tree, struct page *page, 
		     unsigned long bio_flags)

{

	int ret = 0;

	if (tree->ops && tree->ops->merge_bio_hook)

	if (tree->ops)

		ret = tree->ops->merge_bio_hook(page, offset, size, bio,

						bio_flags);

	return ret;