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Commit 5c2b1fd7 authored by David Sterba's avatar David Sterba
Browse files

btrfs: assume that bio_ret is always valid in submit_extent_page 



All callers pass a valid pointer so we can drop the redundant checks.
The call to submit_one_bio never happend and can be removed.

Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 6ca1765b

fs/btrfs/extent_io.c

+5 −5
Original line number Diff line number Diff line
@@ -2758,6 +2758,7 @@ static int merge_bio(struct extent_io_tree *tree, struct page *page, 


/*

 * @opf:	bio REQ_OP_* and REQ_* flags as one value

 * @bio_ret:	must be valid pointer, newly allocated bio will be stored there

 */

static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,

			      struct writeback_control *wbc,
@@ -2778,7 +2779,9 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree, 
	size_t page_size = min_t(size_t, size, PAGE_SIZE);

	sector_t sector = offset >> 9;



	if (bio_ret && *bio_ret) {

	ASSERT(bio_ret);



	if (*bio_ret) {

		bio = *bio_ret;

		if (old_compressed)

			contig = bio->bi_iter.bi_sector == sector;
@@ -2813,10 +2816,7 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree, 
		wbc_account_io(wbc, page, page_size);

	}



	if (bio_ret)

	*bio_ret = bio;

	else

		ret = submit_one_bio(bio, mirror_num, bio_flags);



	return ret;

}