lkml.org 
[lkml]   [2017]   [Jan]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCHSET for-4.11] cgroup: avoid spurious identity ->*attach() invocations
From
Date
On 2016/12/30 6:11, Tejun Heo wrote:
> Hello,
>
> On the v2 hierarchy, when controllers are enabled and disabled, other
> ->*attach() callbacks of other controllers are called spuriously with
> the same source and destination. While this isn't critical, it's a
> bit nasty and can lead to temporary double charging on certain
> controllers. This patchset fixes the issue.
>
> This patchset contains the following three patches.
>
> 0001-cgroup-cosmetic-update-to-cgroup_taskset_add.patch
> 0002-cgroup-track-migration-context-in-cgroup_mgctx.patch
> 0003-cgroup-call-subsys-attach-only-for-subsystems-which-.patch
>
> 0001-0002 restructures migration context tracking so that extra state
> can be tracked easily. 0003 fixes the spurious ->*attach()
> invocations.
>
> This patchset is also available in the following git branch.
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-avoid-identity-attach
>
> diffstat follows.
>
> kernel/cgroup/cgroup-internal.h | 69 +++++++++++++++--
> kernel/cgroup/cgroup-v1.c | 10 +-
> kernel/cgroup/cgroup.c | 161 ++++++++++++++++------------------------
> 3 files changed, 135 insertions(+), 105 deletions(-)
>

Acked-by: Zefan Li <lizefan@huawei.com>

\
 
 \ /
  Last update: 2017-01-11 11:47    [W:0.082 / U:0.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site