The patch titled
Subject: mm-swap-fix-release_pages-when-releasing-devmap-pages-v2
has been added to the -mm tree. Its filename is
mm-swap-fix-release_pages-when-releasing-devmap-pages-v2.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-swap-fix-release_pages-when-releasing-devmap-pages-v2.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-swap-fix-release_pages-when-releasing-devmap-pages-v2.patch
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------------------------------------------------------
From: Ira Weiny <ira.weiny@xxxxxxxxx>
Subject: mm-swap-fix-release_pages-when-releasing-devmap-pages-v2
add comment clarifying that put_devmap_managed_page() can still fail
Link: http://lkml.kernel.org/r/20190524173656.8339-1-ira.weiny@xxxxxxxxx
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Cc: Jérôme Glisse <jglisse@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: John Hubbard <jhubbard@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swap.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/mm/swap.c~mm-swap-fix-release_pages-when-releasing-devmap-pages-v2
+++ a/mm/swap.c
@@ -746,6 +746,10 @@ void release_pages(struct page **pages,
flags);
locked_pgdat = NULL;
}
+ /*
+ * zone-device-pages can still fail here and will
+ * therefore need put_page_testzero()
+ */
if (put_devmap_managed_page(page))
continue;
}
_
Patches currently in -mm which might be from ira.weiny@xxxxxxxxx are
mm-swap-fix-release_pages-when-releasing-devmap-pages.patch
mm-swap-fix-release_pages-when-releasing-devmap-pages-v2.patch
