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Wen Congyang authored
When allocating memory fails, page is NULL. page_to_pfn() will cause the kernel panicked if we don't use sparsemem vmemmap. Link: http://lkml.kernel.org/r/505AB1FF.8020104@cn.fujitsu.com Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: stable <stable@vger.kernel.org> Acked-by:
Mel Gorman <mel@csn.ul.ie> Reviewed-by:
Minchan Kim <minchan@kernel.org> Signed-off-by:
Wen Congyang <wency@cn.fujitsu.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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