Messages in this thread |  | | | Date | Thu, 03 May 2012 14:07:02 -0400 | | From | Rik van Riel <> | | Subject | Re: [PATCH 1/1] mlock: split the shmlock_user_lock spinlock into per user_struct spinlock |
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On 05/03/2012 01:34 PM, rajman mekaco wrote: > The user_shm_lock and user_shm_unlock functions use a single global > spinlock for protecting the user->locked_shm. > > This is an overhead for multiple CPUs calling this code even if they > are having different user_struct. > > Remove the global shmlock_user_lock and introduce and use a new > spinlock inside of the user_struct structure. > > Signed-off-by: rajman mekaco<rajman.mekaco@gmail.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
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