memory_failure and soft_offline_path paths now drain pcplists by calling get_hwpoison_page.
memory_failure flags the page as HWPoison before, so that page cannot longer go into a pcplist, and soft_offline_page only flags a page as HWPoison if 1) we took the page off a buddy freelist 2) the page was in-use and we migrated it 3) was a clean pagecache. Because of that, a page cannot longer be poisoned and be in a pcplist. Signed-off-by: Oscar Salvador <[email protected]> --- mm/madvise.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/mm/madvise.c b/mm/madvise.c index 416a56b8e757..c6b5524add58 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -877,7 +877,6 @@ static long madvise_remove(struct vm_area_struct *vma, static int madvise_inject_error(int behavior, unsigned long start, unsigned long end) { - struct zone *zone; unsigned long size; if (!capable(CAP_SYS_ADMIN)) @@ -922,10 +921,6 @@ static int madvise_inject_error(int behavior, return ret; } - /* Ensure that all poisoned pages are removed from per-cpu lists */ - for_each_populated_zone(zone) - drain_all_pages(zone); - return 0; } #endif -- 2.26.2
