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| author | Petr Holasek <pholasek@redhat.com> | 2011-12-08 13:16:41 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-09 08:03:34 +0100 |
| commit | 54eed6cb16ec315565aaaf8e34252ca253a68b7b (patch) | |
| tree | 281cc87a1fd838255b02e39887e49596d8a1fa58 /fs/drop_caches.c | |
| parent | 54c29c635ae91f5d75ced7bffeaa77ba37ca02bb (diff) | |
| download | linux-54eed6cb16ec315565aaaf8e34252ca253a68b7b.tar.gz linux-54eed6cb16ec315565aaaf8e34252ca253a68b7b.tar.bz2 linux-54eed6cb16ec315565aaaf8e34252ca253a68b7b.zip | |
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 'fs/drop_caches.c')
0 files changed, 0 insertions, 0 deletions