diff options
| author | Oscar Salvador <osalvador@suse.de> | 2020-12-15 04:11:35 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 21:13:44 +0100 |
| commit | 32409cba3f66810626c1c15b728c31968d6bfa92 (patch) | |
| tree | 7ba8a2e46ca4938bd0983138ad09ce924ed4530a /mm/madvise.c | |
| parent | mm,hwpoison: take free pages off the buddy freelists (diff) | |
| download | linux-32409cba3f66810626c1c15b728c31968d6bfa92.tar.xz linux-32409cba3f66810626c1c15b728c31968d6bfa92.zip | |
mm,hwpoison: drop unneeded pcplist draining
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.
Link: https://lkml.kernel.org/r/20201013144447.6706-5-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/madvise.c')
| -rw-r--r-- | mm/madvise.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index 13f5677b9322..fe5c2327e421 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 |