On Wed, 3 Feb 2016, Michal Hocko wrote: > From: Michal Hocko <[email protected]> > > __oom_reap_vmas current skips over all mlocked vmas because they need a > special treatment before they are unmapped. This is primarily done for > simplicity. There is no reason to skip over them and reduce the amount > of reclaimed memory. This is safe from the semantic point of view > because try_to_unmap_one during rmap walk would keep tell the reclaim > to cull the page back and mlock it again. > > munlock_vma_pages_all is also safe to be called from the oom reaper > context because it doesn't sit on any locks but mmap_sem (for read). > > Signed-off-by: Michal Hocko <[email protected]>
Acked-by: David Rientjes <[email protected]>
