On Tue 06-11-18 17:03:51, Kuo-Hsin Yang wrote: > The i915 driver uses shmemfs to allocate backing storage for gem > objects. These shmemfs pages can be pinned (increased ref count) by > shmem_read_mapping_page_gfp(). When a lot of pages are pinned, vmscan > wastes a lot of time scanning these pinned pages. In some extreme case, > all pages in the inactive anon lru are pinned, and only the inactive > anon lru is scanned due to inactive_ratio, the system cannot swap and > invokes the oom-killer. Mark these pinned pages as unevictable to speed > up vmscan. > > Export pagevec API check_move_unevictable_pages(). > > This patch was inspired by Chris Wilson's change [1]. > > [1]: https://patchwork.kernel.org/patch/9768741/ > > Cc: Chris Wilson <[email protected]> > Cc: Joonas Lahtinen <[email protected]> > Cc: Peter Zijlstra <[email protected]> > Cc: Andrew Morton <[email protected]> > Cc: Dave Hansen <[email protected]> > Signed-off-by: Kuo-Hsin Yang <[email protected]> > Acked-by: Michal Hocko <[email protected]>
please make it explicit that the ack applies to mm part as i've mentioned when giving my ack to the previous version. E.g. Acked-by: Michal Hocko <[email protected]> # mm part because i am not familiar with the drm code to ack any changes there. -- Michal Hocko SUSE Labs _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
