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Commit 64e1c57f authored by Jan Kara's avatar Jan Kara Committed by Jens Axboe
Browse files

ext4: Use clean_bdev_aliases() instead of iteration 



Use clean_bdev_aliases() instead of iterating through blocks one by one.

Signed-off-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent f734c89c

fs/ext4/extents.c

+2 −11
Original line number Diff line number Diff line
@@ -3777,14 +3777,6 @@ static int ext4_convert_unwritten_extents_endio(handle_t *handle, 
	return err;

}



static void unmap_underlying_metadata_blocks(struct block_device *bdev,

			sector_t block, int count)

{

	int i;

	for (i = 0; i < count; i++)

                unmap_underlying_metadata(bdev, block + i);

}



/*

 * Handle EOFBLOCKS_FL flag, clearing it if necessary

 */
@@ -4121,8 +4113,7 @@ ext4_ext_handle_unwritten_extents(handle_t *handle, struct inode *inode, 
	 * new.

	 */

	if (allocated > map->m_len) {

		unmap_underlying_metadata_blocks(inode->i_sb->s_bdev,

					newblock + map->m_len,

		clean_bdev_aliases(inode->i_sb->s_bdev, newblock + map->m_len,

				   allocated - map->m_len);

		allocated = map->m_len;

	}

fs/ext4/inode.c

+4 −11
Original line number Diff line number Diff line
@@ -654,12 +654,8 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode, 
		if (flags & EXT4_GET_BLOCKS_ZERO &&

		    map->m_flags & EXT4_MAP_MAPPED &&

		    map->m_flags & EXT4_MAP_NEW) {

			ext4_lblk_t i;



			for (i = 0; i < map->m_len; i++) {

				unmap_underlying_metadata(inode->i_sb->s_bdev,

							  map->m_pblk + i);

			}

			clean_bdev_aliases(inode->i_sb->s_bdev, map->m_pblk,

					   map->m_len);

			ret = ext4_issue_zeroout(inode, map->m_lblk,

						 map->m_pblk, map->m_len);

			if (ret) {
@@ -2360,11 +2356,8 @@ static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd) 


	BUG_ON(map->m_len == 0);

	if (map->m_flags & EXT4_MAP_NEW) {

		struct block_device *bdev = inode->i_sb->s_bdev;

		int i;



		for (i = 0; i < map->m_len; i++)

			unmap_underlying_metadata(bdev, map->m_pblk + i);

		clean_bdev_aliases(inode->i_sb->s_bdev, map->m_pblk,

				   map->m_len);

	}

	return 0;

}