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: Nikolay Borisov <nborisov@xxxxxxxx> Tested-by: Nikolay Borisov <nborisov@xxxxxxxx> Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx> --- fs/btrfs/block-group.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c index 7b04cf4eeff3..df0ae5ab49bb 100644 --- a/fs/btrfs/block-group.c +++ b/fs/btrfs/block-group.c @@ -3057,6 +3057,13 @@ 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); -- 2.24.1
