The patch titled
Subject: mm, page_alloc: split buffered_rmqueue -fix
has been added to the -mm tree. Its filename is
mm-page_alloc-split-buffered_rmqueue-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-page_alloc-split-buffered_rmqueue-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-page_alloc-split-buffered_rmqueue-fix.patch
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------------------------------------------------------
From: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Subject: mm, page_alloc: split buffered_rmqueue -fix
Vlastimil Babka pointed out that a failed per-cpu refill on a kernel with
CONFIG_DEBUG_VM may blow up on a VM_BUG_ON_PAGE. This patch is a fix to
the mmotm patch mm-page_alloc-split-buffered_rmqueue.patch
Link: http://lkml.kernel.org/r/20170124112723.mshmgwq2ihxku2um@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Hillf Danton <hillf.zj@xxxxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Jesper Dangaard Brouer <brouer@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/page_alloc.c~mm-page_alloc-split-buffered_rmqueue-fix mm/page_alloc.c
--- a/mm/page_alloc.c~mm-page_alloc-split-buffered_rmqueue-fix
+++ a/mm/page_alloc.c
@@ -2697,7 +2697,7 @@ struct page *rmqueue(struct zone *prefer
local_irq_restore(flags);
out:
- VM_BUG_ON_PAGE(bad_range(zone, page), page);
+ VM_BUG_ON_PAGE(page && bad_range(zone, page), page);
return page;
failed:
_
Patches currently in -mm which might be from mgorman@xxxxxxxxxxxxxxxxxxx are
mm-page_alloc-split-buffered_rmqueue.patch
mm-page_alloc-split-buffered_rmqueue-fix.patch
mm-page_alloc-split-alloc_pages_nodemask.patch
mm-page_alloc-drain-per-cpu-pages-from-workqueue-context.patch
mm-page_alloc-only-use-per-cpu-allocator-for-irq-safe-requests.patch
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