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Commit 1b22bad7 authored by Alexandre Oliva's avatar Alexandre Oliva Committed by Chris Mason
Browse files

Btrfs: start search for new cluster at the beginning 



Instead of starting at zero (offset is always zero), request a cluster
starting at search_start, that denotes the beginning of the current
block group.

Signed-off-by: default avatarAlexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent b78d09bc

fs/btrfs/extent-tree.c

+2 −4
Original line number Diff line number Diff line
@@ -5301,10 +5301,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, 
			spin_lock(&last_ptr->refill_lock);

			if (last_ptr->block_group &&

			    (last_ptr->block_group->ro ||

			    !block_group_bits(last_ptr->block_group, data))) {

				offset = 0;

			    !block_group_bits(last_ptr->block_group, data)))

				goto refill_cluster;

			}



			offset = btrfs_alloc_from_cluster(block_group, last_ptr,

						 num_bytes, search_start);
@@ -5355,7 +5353,7 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, 
			/* allocate a cluster in this block group */

			ret = btrfs_find_space_cluster(trans, root,

					       block_group, last_ptr,

					       offset, num_bytes,

					       search_start, num_bytes,

					       empty_cluster + empty_size);

			if (ret == 0) {

				/*