Messages in this thread | | | Date | Mon, 20 Jun 2016 15:50:01 -0400 | From | Johannes Weiner <> | Subject | Re: [PATCH] memcg: mem_cgroup_migrate() may be called with irq disabled |
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On Mon, Jun 20, 2016 at 02:41:58PM -0400, Tejun Heo wrote: > mem_cgroup_migrate() uses local_irq_disable/enable() but can be called > with irq disabled from migrate_page_copy(). This ends up enabling irq > while holding a irq context lock triggering the following lockdep > warning. Fix it by using irq_save/restore instead.
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Fixes: 74485cf2bc85 ("mm: migrate: consolidate mem_cgroup_migrate() calls") CC: stable@vger.kernel.org # 4.5
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