Commit 99ffb43e authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: call btrfs_try_granting_tickets when reserving space 



If we have compression on we could free up more space than we reserved,
and thus be able to make a space reservation.  Add the call for this
scenario.

Reviewed-by: default avatarNikolay Borisov <nborisov@suse.com>
Tested-by: default avatarNikolay Borisov <nborisov@suse.com>
Reviewed-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 2732798c

fs/btrfs/block-group.c

+7 −0
Original line number Diff line number Diff line
@@ -2961,6 +2961,13 @@ int btrfs_add_reserved_bytes(struct btrfs_block_group *cache, 
						      space_info, -ram_bytes);

		if (delalloc)

			cache->delalloc_bytes += num_bytes;



		/*

		 * Compression can use less space than we reserved, so wake

		 * tickets if that happens

		 */

		if (num_bytes < ram_bytes)

			btrfs_try_granting_tickets(cache->fs_info, space_info);

	}

	spin_unlock(&cache->lock);

	spin_unlock(&space_info->lock);