The patch titled
Subject: mm/hugetlb.c: avoid bogus counter of surplus huge page
has been added to the -mm tree. Its filename is
mm-hugetlb-avoid-bogus-counter-of-surplus-huge-page.patch
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From: Hillf Danton <dhillf@xxxxxxxxx>
Subject: mm/hugetlb.c: avoid bogus counter of surplus huge page
If we have to hand back the newly allocated huge page to page allocator,
for any reason, the changed counter should be recovered.
This affects only s390 at present.
Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
Reviewed-by: Michal Hocko <mhocko@xxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/hugetlb.c~mm-hugetlb-avoid-bogus-counter-of-surplus-huge-page mm/hugetlb.c
--- a/mm/hugetlb.c~mm-hugetlb-avoid-bogus-counter-of-surplus-huge-page
+++ a/mm/hugetlb.c
@@ -800,7 +800,7 @@ static struct page *alloc_buddy_huge_pag
if (page && arch_prepare_hugepage(page)) {
__free_pages(page, huge_page_order(h));
- return NULL;
+ page = NULL;
}
spin_lock(&hugetlb_lock);
_
Subject: Subject: mm/hugetlb.c: avoid bogus counter of surplus huge page
Patches currently in -mm which might be from dhillf@xxxxxxxxx are
origin.patch
mm-hugetlb-fix-non-atomic-enqueue-of-huge-page.patch
mm-hugetlb-avoid-bogus-counter-of-surplus-huge-page.patch
linux-next.patch
hugetlb-detect-race-upon-page-allocation-failure-during-cow.patch
hugetlb-clarify-hugetlb_instantiation_mutex-usage.patch
mm-compaction-push-isolate-search-base-of-compact-control-one-pfn-ahead.patch
mm-hugetlb-fix-pgoff-computation-when-unmapping-page-from-vma.patch
mm-hugetlb-fix-pgoff-computation-when-unmapping-page-from-vma-fix.patch
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