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Commit 00032d38 authored by David Sterba's avatar David Sterba
Browse files

btrfs: drop extent_io_ops::merge_bio_hook callback



The data and metadata callback implementation both use the same
function. We can remove the call indirection completely.

Reviewed-by: default avatarNikolay Borisov <nborisov@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 05912a3c
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+3 −7
Original line number Diff line number Diff line
@@ -299,7 +299,6 @@ blk_status_t btrfs_submit_compressed_write(struct inode *inode, u64 start,
	struct bio *bio = NULL;
	struct compressed_bio *cb;
	unsigned long bytes_left;
	struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
	int pg_index = 0;
	struct page *page;
	u64 first_byte = disk_start;
@@ -338,9 +337,7 @@ blk_status_t btrfs_submit_compressed_write(struct inode *inode, u64 start,
		page = compressed_pages[pg_index];
		page->mapping = inode->i_mapping;
		if (bio->bi_iter.bi_size)
			submit = io_tree->ops->merge_bio_hook(page, 0,
							   PAGE_SIZE,
							   bio, 0);
			submit = btrfs_merge_bio_hook(page, 0, PAGE_SIZE, bio, 0);

		page->mapping = NULL;
		if (submit || bio_add_page(bio, page, PAGE_SIZE, 0) <
@@ -622,8 +619,7 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
		page->index = em_start >> PAGE_SHIFT;

		if (comp_bio->bi_iter.bi_size)
			submit = tree->ops->merge_bio_hook(page, 0,
							PAGE_SIZE,
			submit = btrfs_merge_bio_hook(page, 0, PAGE_SIZE,
					comp_bio, 0);

		page->mapping = NULL;
+0 −2
Original line number Diff line number Diff line
@@ -4527,8 +4527,6 @@ static const struct extent_io_ops btree_extent_io_ops = {
	/* mandatory callbacks */
	.submit_bio_hook = btree_submit_bio_hook,
	.readpage_end_io_hook = btree_readpage_end_io_hook,
	/* note we're sharing with inode.c for the merge bio hook */
	.merge_bio_hook = btrfs_merge_bio_hook,
	.readpage_io_failed_hook = btree_io_failed_hook,
	.set_range_writeback = btrfs_set_range_writeback,

+2 −2
Original line number Diff line number Diff line
@@ -2784,8 +2784,8 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
		else
			contig = bio_end_sector(bio) == sector;

		if (tree->ops && tree->ops->merge_bio_hook(page, offset,
					page_size, bio, bio_flags))
		if (tree->ops && btrfs_merge_bio_hook(page, offset, page_size,
						      bio, bio_flags))
			can_merge = false;

		if (prev_bio_flags != bio_flags || !contig || !can_merge ||
+0 −3
Original line number Diff line number Diff line
@@ -101,9 +101,6 @@ struct extent_io_ops {
	int (*readpage_end_io_hook)(struct btrfs_io_bio *io_bio, u64 phy_offset,
				    struct page *page, u64 start, u64 end,
				    int mirror);
	int (*merge_bio_hook)(struct page *page, unsigned long offset,
			      size_t size, struct bio *bio,
			      unsigned long bio_flags);
	int (*readpage_io_failed_hook)(struct page *page, int failed_mirror);
	void (*set_range_writeback)(void *private_data, u64 start, u64 end);

+2 −3
Original line number Diff line number Diff line
@@ -1898,8 +1898,8 @@ static void btrfs_clear_bit_hook(void *private_data,
}

/*
 * extent_io.c merge_bio_hook, this must check the chunk tree to make sure
 * we don't create bios that span stripes or chunks
 * Merge bio hook, this must check the chunk tree to make sure we don't create
 * bios that span stripes or chunks
 *
 * return 1 if page cannot be merged to bio
 * return 0 if page can be merged to bio
@@ -10545,7 +10545,6 @@ static const struct extent_io_ops btrfs_extent_io_ops = {
	/* mandatory callbacks */
	.submit_bio_hook = btrfs_submit_bio_hook,
	.readpage_end_io_hook = btrfs_readpage_end_io_hook,
	.merge_bio_hook = btrfs_merge_bio_hook,
	.readpage_io_failed_hook = btrfs_readpage_io_failed_hook,
	.set_range_writeback = btrfs_set_range_writeback,