diff options
Diffstat (limited to 'mm/madvise.c')
| -rw-r--r-- | mm/madvise.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index 63a12162f4c6..55f30ec32e5b 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -533,6 +533,8 @@ static long madvise_remove(struct vm_area_struct *vma, static int madvise_hwpoison(int bhv, unsigned long start, unsigned long end) { struct page *p; + struct zone *zone; + if (!capable(CAP_SYS_ADMIN)) return -EPERM; for (; start < end; start += PAGE_SIZE << @@ -561,6 +563,11 @@ static int madvise_hwpoison(int bhv, unsigned long start, unsigned long end) if (ret) 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 |