Commit 9c48bcec authored by Johannes Thumshirn's avatar Johannes Thumshirn Committed by David Sterba
Browse files

btrfs: cache RAID stripe tree decision in btrfs_io_context 



Cache the decision if a particular I/O needs to update RAID stripe tree
entries in struct btrfs_io_context.

Signed-off-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: default avatarFilipe Manana <fdmanana@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 68ab9825

fs/btrfs/bio.c

+1 −2
Original line number Diff line number Diff line
@@ -725,8 +725,7 @@ static bool btrfs_submit_chunk(struct btrfs_bio *bbio, int mirror_num) 
			bio->bi_opf |= REQ_OP_ZONE_APPEND;

		}



		if (is_data_bbio(bbio) && bioc &&

		    btrfs_need_stripe_tree_update(bioc->fs_info, bioc->map_type)) {

		if (is_data_bbio(bbio) && bioc && bioc->use_rst) {

			/*

			 * No locking for the list update, as we only add to

			 * the list in the I/O submission path, and list

fs/btrfs/volumes.c

+1 −0
Original line number Diff line number Diff line
@@ -6663,6 +6663,7 @@ int btrfs_map_block(struct btrfs_fs_info *fs_info, enum btrfs_map_op op, 
		goto out;

	}

	bioc->map_type = map->type;

	bioc->use_rst = io_geom.use_rst;



	/*

	 * For RAID56 full map, we need to make sure the stripes[] follows the

fs/btrfs/volumes.h

+1 −0
Original line number Diff line number Diff line
@@ -485,6 +485,7 @@ struct btrfs_io_context { 
	struct bio *orig_bio;

	atomic_t error;

	u16 max_errors;

	bool use_rst;



	u64 logical;

	u64 size;