On Thu, Sep 10, 2020 at 04:48:27PM +0200, Christoph Hellwig wrote: > Just checking SB_I_CGROUPWB for cgroup writeback support is enough. > Either the file system allocates its own bdi (e.g. btrfs), in which case > it is known to support cgroup writeback, or the bdi comes from the block > layer, which always supports cgroup writeback. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx> Acked-by: David Sterba <dsterba@xxxxxxxx>
