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Chris Metcalf authored
Bootmem isn't popular any more, but some architectures still use it, and freeing to bootmem after calling free_all_bootmem_core() can end up scribbling over random memory. Instead, make sure the kernel generates a warning in this case by ensuring the node_bootmem_map field is non-NULL when are freeing or marking bootmem. An instance of this bug was just fixed in the tile architecture ("tile: use free_bootmem_late() for initrd") and catching this case more widely seems like a good thing. Signed-off-by:
Chris Metcalf <cmetcalf@ezchip.com> Acked-by:
Mel Gorman <mgorman@suse.de> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Paul McQuade <paulmcquad@gmail.com> Cc: Tang Chen <tangchen@cn.fujitsu.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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