diff mbox series

[v4,6/7] mm,hwpoison: drop unneeded pcplist draining

Message ID 20200917081049.27428-7-osalvador@suse.de (mailing list archive)
State New, archived
Headers show
Series HWpoison: further fixes and cleanups | expand

Commit Message

Oscar Salvador Sept. 17, 2020, 8:10 a.m. UTC
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 <osalvador@suse.de>
---
 mm/madvise.c | 4 ----
 1 file changed, 4 deletions(-)
diff mbox series

Patch

diff --git a/mm/madvise.c b/mm/madvise.c
index 4a48f7215195..302f3a84d17c 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -914,10 +914,6 @@  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