On 11/20/2013 10:24 AM, Tejun Heo wrote: > On Wed, Nov 06, 2013 at 07:14:44PM +0800, Hong Zhiguo wrote: >> From: Hong Zhiguo <zhiguohong@xxxxxxxxxxx> >> >> Update of blkg_stat and blkg_rwstat may happen in bh context. >> While u64_stats_fetch_retry is only preempt_disable on 32bit >> UP system. This is not enough to avoid preemption by bh and >> may read strange 64 bit value. >> >> Signed-off-by: Hong Zhiguo <zhiguohong@xxxxxxxxxxx> > > Acked-by: Tejun Heo <tj@xxxxxxxxxx> > > Jens, can you please pick this one up? This probably needs to be > tagged for stable too. Yeah will do, thanks. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
