On Fri, Feb 05, 2016 at 12:21:39PM -0500, Tejun Heo wrote: > On Mon, Feb 01, 2016 at 05:50:33PM -0800, Shaohua Li wrote: > > block_dev's .writepages/.writepage already handles > > wbc_init_bio/wbc_account_io. We only set the SB_I_CGROUPWB bit to > > suppport writeback cgroup support. > > > > Signed-off-by: Shaohua Li <[email protected]> > > Acked-by: Tejun Heo <[email protected]> > > Can you please describe a bit how you tested it tho?
I'm doing a simple buffered write to a disk, assign it to a cgroup and blk-throttle sets wbps for the disk/cgroup. then I'm watching iostat with/without the bit set. Thanks, Shaohua
