Re: suspicious __GFP_NOMEMALLOC in selinux

2017-08-03 Thread Paul Moore
On Thu, Aug 3, 2017 at 7:05 AM, Michal Hocko wrote: > On Thu 03-08-17 19:44:46, Tetsuo Handa wrote: >> Michal Hocko wrote: >> > On Thu 03-08-17 19:02:57, Tetsuo Handa wrote: >> > > On 2017/08/03 17:11, Michal Hocko wrote: >> > > > [CC Mel] >> > > > >> > > > On Wed 02-08-17 17:45:56, Paul Moore wro

Re: suspicious __GFP_NOMEMALLOC in selinux

2017-08-03 Thread Michal Hocko
On Thu 03-08-17 19:02:57, Tetsuo Handa wrote: > On 2017/08/03 17:11, Michal Hocko wrote: > > [CC Mel] > > > > On Wed 02-08-17 17:45:56, Paul Moore wrote: > >> On Wed, Aug 2, 2017 at 6:50 AM, Michal Hocko wrote: > >>> Hi, > >>> while doing something completely unrelated to selinux I've noticed a >

Re: suspicious __GFP_NOMEMALLOC in selinux

2017-08-03 Thread Tetsuo Handa
On 2017/08/03 17:11, Michal Hocko wrote: > [CC Mel] > > On Wed 02-08-17 17:45:56, Paul Moore wrote: >> On Wed, Aug 2, 2017 at 6:50 AM, Michal Hocko wrote: >>> Hi, >>> while doing something completely unrelated to selinux I've noticed a >>> really strange __GFP_NOMEMALLOC usage pattern in selinux,

Re: suspicious __GFP_NOMEMALLOC in selinux

2017-08-03 Thread Mel Gorman
On Thu, Aug 03, 2017 at 10:11:52AM +0200, Michal Hocko wrote: > > The GFP_ATOMIC|__GFP_NOMEMALLOC use in SELinux appears to be limited > > to security/selinux/avc.c, and digging a bit, I'm guessing commit > > fa1aa143ac4a copied the combination from 6290c2c43973 ("selinux: tag > > avc cache alloc a

Re: suspicious __GFP_NOMEMALLOC in selinux

2017-08-03 Thread Michal Hocko
On Thu 03-08-17 19:44:46, Tetsuo Handa wrote: > Michal Hocko wrote: > > On Thu 03-08-17 19:02:57, Tetsuo Handa wrote: > > > On 2017/08/03 17:11, Michal Hocko wrote: > > > > [CC Mel] > > > > > > > > On Wed 02-08-17 17:45:56, Paul Moore wrote: > > > >> On Wed, Aug 2, 2017 at 6:50 AM, Michal Hocko w

Re: suspicious __GFP_NOMEMALLOC in selinux

2017-08-03 Thread Tetsuo Handa
Michal Hocko wrote: > On Thu 03-08-17 19:02:57, Tetsuo Handa wrote: > > On 2017/08/03 17:11, Michal Hocko wrote: > > > [CC Mel] > > > > > > On Wed 02-08-17 17:45:56, Paul Moore wrote: > > >> On Wed, Aug 2, 2017 at 6:50 AM, Michal Hocko wrote: > > >>> Hi, > > >>> while doing something completely u

Re: suspicious __GFP_NOMEMALLOC in selinux

2017-08-03 Thread Michal Hocko
[CC Mel] On Wed 02-08-17 17:45:56, Paul Moore wrote: > On Wed, Aug 2, 2017 at 6:50 AM, Michal Hocko wrote: > > Hi, > > while doing something completely unrelated to selinux I've noticed a > > really strange __GFP_NOMEMALLOC usage pattern in selinux, especially > > GFP_ATOMIC | __GFP_NOMEMALLOC do