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Groups > linux.kernel > #1643619
| From | Waiman Long <longman@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC PATCH v2 07/17] cgroup: Prevent kill_css() from being called more than once |
| Date | 2017-05-17 22:30 +0200 |
| Message-ID | <tIdK1-7Nc-5@gated-at.bofh.it> (permalink) |
| References | <tHoo9-lZ-3@gated-at.bofh.it> <tHoob-lZ-51@gated-at.bofh.it> <tIcNY-7cM-13@gated-at.bofh.it> |
| Organization | Red Hat |
On 05/17/2017 03:23 PM, Tejun Heo wrote: > Hello, > > On Mon, May 15, 2017 at 09:34:06AM -0400, Waiman Long wrote: >> The kill_css() function may be called more than once under the condition >> that the css was killed but not physically removed yet followed by the >> removal of the cgroup that is hosting the css. This patch prevents any >> harmm from being done when that happens. >> >> Signed-off-by: Waiman Long <longman@redhat.com> > So, this is a bug fix which isn't really related to this patchset. > I'm applying it to cgroup/for-4.12-fixes w/ stable cc'd. > > Thanks. > Actually, this bug can be easily triggered with the resource domain patch later in the series. I guess it can also happen in the current code base, but I don't have a test that can reproduce it. Regards, Longman
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[RFC PATCH v2 07/17] cgroup: Prevent kill_css() from being called more than once Waiman Long <longman@redhat.com> - 2017-05-15 15:40 +0200
Re: [RFC PATCH v2 07/17] cgroup: Prevent kill_css() from being called more than once Tejun Heo <tj@kernel.org> - 2017-05-17 21:30 +0200
Re: [RFC PATCH v2 07/17] cgroup: Prevent kill_css() from being called more than once Waiman Long <longman@redhat.com> - 2017-05-17 22:30 +0200
Re: [RFC PATCH v2 07/17] cgroup: Prevent kill_css() from being called more than once Tejun Heo <tj@kernel.org> - 2017-05-17 23:40 +0200
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