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@xxxxxxxxx>
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