Messages in this thread | | | From | Tejun Heo <> | Subject | [PATCHSET for-4.11] cgroup: avoid spurious identity ->*attach() invocations | Date | Thu, 29 Dec 2016 17:11:12 -0500 |
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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(-)
Thanks.
-- tejun
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