Messages in this thread |  | | | Date | Fri, 24 Feb 2012 09:25:20 -0800 | | From | Dave Hansen <> | | Subject | Re: [RFC][PATCH] fix move/migrate_pages() race on task struct |
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On 02/24/2012 09:08 AM, Christoph Lameter wrote: > cpuset_mems_allowed takes a mutex. Hmmm... Under rcu? > > security_task_movememory does some kind of security hook. > > Is that all safe? If not then we need to take a refcount on the task > struct after all.
Urg, no we can't sleep under an rcu_read_lock().
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