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f26d26304f
wake_up() executes a full memory barrier when waking a process up, so there's no need for the acquire in the wait event. Additionally, because of this, the atomic_cmpxchg() only needs a read barrier. The cmpxchg() in simple_lmk_mm_freed() is atomic when it doesn't need to be, so replace it with an extra line of code. The atomic_inc_return() in simple_lmk_mm_freed() lies within a lock, so it doesn't need explicit memory barriers. Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: azrim <mirzaspc@gmail.com>