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| author | Anton Blanchard <anton@samba.org> | 2010-01-06 15:55:12 +1100 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2010-01-06 15:47:57 -0800 |
| commit | 1d1e9f04216b379000128392b11edd7f5d0ebed1 (patch) | |
| tree | 450002f3d4defb270aa150df1dccf123cd3b0844 /arch/ia64/mm | |
| parent | c6f7afaeeda5b3c42ea8d7b27e197d223a04675e (diff) | |
| download | op-kernel-dev-1d1e9f04216b379000128392b11edd7f5d0ebed1.zip op-kernel-dev-1d1e9f04216b379000128392b11edd7f5d0ebed1.tar.gz | |
[IA64] cpumask_of_node() should handle -1 as a node
pcibus_to_node can return -1 if we cannot determine which node a pci bus
is on. If passed -1, cpumask_of_node will negatively index the lookup array
and pull in random data:
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpus
00000000,00000003,00000000,00000000
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpulist
64-65
Change cpumask_of_node to check for -1 and return cpu_all_mask in this
case:
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpus
ffffffff,ffffffff,ffffffff,ffffffff
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpulist
0-127
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/mm')
0 files changed, 0 insertions, 0 deletions
