On Tue, Nov 14, 2017 at 10:05:07AM -0800, Shaohua Li wrote: > blkcg_bio_issue_check() checks throtl for stat update, which isn't good > because the bio could be splitted into small bios, the samll bios go > into blkcg_bio_issue_check again and we update stat for the small bios, > so we the stat is double charged. To fix this, we only update stat if > the bio doesn't have BIO_THROTTLED flag. The fix will update stat ahead > of bio skips from blk-throttle, but eventually the stat is correct. > > This patch is on top of patch: > https://marc.info/?l=linux-block&m=151060860608914&w=2 > > Cc: Tejun Heo <tj@xxxxxxxxxx> > Signed-off-by: Shaohua Li <shli@xxxxxx> Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun
