Re: [PATCH] cpuset: Allow v2 behavior in v1 cgroup

2017-08-17 Thread kbuild test robot
Hi Waiman, [auto build test ERROR on linus/master] [also build test ERROR on v4.13-rc5 next-20170817] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Waiman-Long/cpuset-Allow-v2-behavior-in-v1-cg

Re: [PATCH] cpuset: Allow v2 behavior in v1 cgroup

2017-08-17 Thread kbuild test robot
Hi Waiman, [auto build test WARNING on linus/master] [also build test WARNING on v4.13-rc5 next-20170817] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Waiman-Long/cpuset-Allow-v2-behavior-in-v

Re: [PATCH] cpuset: Allow v2 behavior in v1 cgroup

2017-08-16 Thread Waiman Long
On 08/16/2017 10:36 AM, Tejun Heo wrote: > Hello, > > On Wed, Aug 16, 2017 at 10:34:05AM -0400, Waiman Long wrote: >>> It feels weird to make this a kernel boot param when all other options >>> are specified on mount time. Is there a reason why this can't be a >>> mount option too? >>> >> Yes, we

Re: [PATCH] cpuset: Allow v2 behavior in v1 cgroup

2017-08-16 Thread Tejun Heo
Hello, On Wed, Aug 16, 2017 at 10:34:05AM -0400, Waiman Long wrote: > > It feels weird to make this a kernel boot param when all other options > > are specified on mount time. Is there a reason why this can't be a > > mount option too? > > > Yes, we can certainly make this a mount option instead

Re: [PATCH] cpuset: Allow v2 behavior in v1 cgroup

2017-08-16 Thread Waiman Long
On 08/16/2017 10:29 AM, Tejun Heo wrote: > Hello, Waiman. > > On Tue, Aug 15, 2017 at 01:27:20PM -0400, Waiman Long wrote: >> +cpuset_v2_mode= [KNL] Enable cpuset v2 behavior in cpuset v1 cgroups. >> +In v2 mode, the cpus and mems can be restored to >> +t

Re: [PATCH] cpuset: Allow v2 behavior in v1 cgroup

2017-08-16 Thread Tejun Heo
Hello, Waiman. On Tue, Aug 15, 2017 at 01:27:20PM -0400, Waiman Long wrote: > + cpuset_v2_mode= [KNL] Enable cpuset v2 behavior in cpuset v1 cgroups. > + In v2 mode, the cpus and mems can be restored to > + their original values after a removal-addition

Re: [PATCH] cpuset: Allow v2 behavior in v1 cgroup

2017-08-15 Thread Zefan Li
On 2017/8/16 1:27, Waiman Long wrote: > Cpuset v2 has some valuable attributes that are not present in > v1 because of backward compatibility concern. One of that is the > restoration of the original cpu and memory node mask after a hot > removal and addition event sequence. > > This patch adds a