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authorRusty Russell <rusty@rustcorp.com.au>2009-06-12 20:55:37 +0930
committerDave Jones <davej@redhat.com>2009-06-15 11:49:43 -0400
commit1ff6e97f1d993dff2f9b6f4a9173687370660232 (patch)
tree19cadec61f22a61a0e4c2d338ccd8672710aed17 /drivers/acpi/acpica/hwtimer.c
parente3f996c26ff6c4c084aaaa64dce6e54d31f517be (diff)
[CPUFREQ] cpumask: avoid playing with cpus_allowed in powernow-k8.c
cpumask: avoid playing with cpus_allowed in powernow-k8.c It's generally a very bad idea to mug some process's cpumask: it could legitimately and reasonably be changed by root, which could break us (if done before our code) or them (if we restore the wrong value). I did not replace powernowk8_target; it needs fixing, but it grabs a mutex (so no smp_call_function_single here) but Mark points out it can be called multiple times per second, so work_on_cpu is too heavy. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> To: cpufreq@vger.kernel.org Acked-by: Mark Langsdorf <mark.langsdorf@amd.com> Tested-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/acpi/acpica/hwtimer.c')
0 files changed, 0 insertions, 0 deletions