The patch titled
Subject: mm/migrate.c: pair unlock_page() and lock_page() when migrating huge pages
has been added to the -mm tree. Its filename is
mm-migratec-pair-unlock_page-and-lock_page-when-migrating-huge-pages.patch
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------------------------------------------------------
From: Hillf Danton <dhillf@xxxxxxxxx>
Subject: mm/migrate.c: pair unlock_page() and lock_page() when migrating huge pages
Avoid unlocking and unlocked page if we failed to lock it.
Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/migrate.c~mm-migratec-pair-unlock_page-and-lock_page-when-migrating-huge-pages mm/migrate.c
--- a/mm/migrate.c~mm-migratec-pair-unlock_page-and-lock_page-when-migrating-huge-pages
+++ a/mm/migrate.c
@@ -871,9 +871,9 @@ static int unmap_and_move_huge_page(new_
if (anon_vma)
put_anon_vma(anon_vma);
-out:
unlock_page(hpage);
+out:
if (rc != -EAGAIN) {
list_del(&hpage->lru);
put_page(hpage);
_
Subject: Subject: mm/migrate.c: pair unlock_page() and lock_page() when migrating huge pages
Patches currently in -mm which might be from dhillf@xxxxxxxxx are
linux-next.patch
mm-migratec-pair-unlock_page-and-lock_page-when-migrating-huge-pages.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
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