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authorPetr Holasek <pholasek@redhat.com>2011-12-08 13:16:41 +0100
committerIngo Molnar <mingo@elte.hu>2011-12-09 08:03:34 +0100
commit54eed6cb16ec315565aaaf8e34252ca253a68b7b (patch)
tree281cc87a1fd838255b02e39887e49596d8a1fa58 /init
parent54c29c635ae91f5d75ced7bffeaa77ba37ca02bb (diff)
x86/numa: Add constraints check for nid parameters
This patch adds constraint checks to the numa_set_distance() function. When the check triggers (this should not happen normally) it emits a warning and avoids a store to a negative index in numa_distance[] array - i.e. avoids memory corruption. Negative ids can be passed when the pxm-to-nids mapping is not properly filled while parsing the SRAT. Signed-off-by: Petr Holasek <pholasek@redhat.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Anton Arapov <anton@redhat.com> Link: http://lkml.kernel.org/r/20111208121640.GA2229@dhcp-27-244.brq.redhat.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'init')
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