Commit 6aabd858 authored by Qu Wenruo's avatar Qu Wenruo Committed by David Sterba
Browse files

btrfs: remove unused function btrfs_bio_fits_in_stripe() 



As the last caller in compression.c has been removed, we don't need that
function anymore.

Signed-off-by: default avatarQu Wenruo <wqu@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 91507240

fs/btrfs/ctree.h

+0 −2
Original line number Diff line number Diff line
@@ -3220,8 +3220,6 @@ void btrfs_merge_delalloc_extent(struct inode *inode, struct extent_state *new, 
				 struct extent_state *other);

void btrfs_split_delalloc_extent(struct inode *inode,

				 struct extent_state *orig, u64 split);

int btrfs_bio_fits_in_stripe(struct page *page, size_t size, struct bio *bio,

			     unsigned long bio_flags);

void btrfs_set_range_writeback(struct btrfs_inode *inode, u64 start, u64 end);

vm_fault_t btrfs_page_mkwrite(struct vm_fault *vmf);

int btrfs_readpage(struct file *file, struct page *page);

fs/btrfs/inode.c

+0 −42
Original line number Diff line number Diff line
@@ -2233,48 +2233,6 @@ void btrfs_clear_delalloc_extent(struct inode *vfs_inode, 
	}

}



/*

 * btrfs_bio_fits_in_stripe - Checks whether the size of the given bio will fit

 * in a chunk's stripe. This function ensures that bios do not span a

 * stripe/chunk

 *

 * @page - The page we are about to add to the bio

 * @size - size we want to add to the bio

 * @bio - bio we want to ensure is smaller than a stripe

 * @bio_flags - flags of the bio

 *

 * return 1 if page cannot be added to the bio

 * return 0 if page can be added to the bio

 * return error otherwise

 */

int btrfs_bio_fits_in_stripe(struct page *page, size_t size, struct bio *bio,

			     unsigned long bio_flags)

{

	struct inode *inode = page->mapping->host;

	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);

	u64 logical = bio->bi_iter.bi_sector << 9;

	u32 bio_len = bio->bi_iter.bi_size;

	struct extent_map *em;

	int ret = 0;

	struct btrfs_io_geometry geom;



	if (bio_flags & EXTENT_BIO_COMPRESSED)

		return 0;



	em = btrfs_get_chunk_map(fs_info, logical, fs_info->sectorsize);

	if (IS_ERR(em))

		return PTR_ERR(em);

	ret = btrfs_get_io_geometry(fs_info, em, btrfs_op(bio), logical, &geom);

	if (ret < 0)

		goto out;



	if (geom.len < bio_len + size)

		ret = 1;

out:

	free_extent_map(em);

	return ret;

}



/*

 * in order to insert checksums into the metadata in large chunks,

 * we wait until bio submission time.   All the pages in the bio are