diff options
| author | Mike Travis <travis@sgi.com> | 2008-12-16 17:33:52 -0800 |
|---|---|---|
| committer | Mike Travis <travis@sgi.com> | 2008-12-16 17:40:56 -0800 |
| commit | e7986739a76cde5079da08809d8bbc6878387ae0 (patch) | |
| tree | dd99ed6af66d459fe164f75ded7f95262dc0fb0d /arch/x86/kernel/smp.c | |
| parent | 36f5101a60de8f79c0d1ca06e50660bf5129e02c (diff) | |
x86 smp: modify send_IPI_mask interface to accept cpumask_t pointers
Impact: cleanup, change parameter passing
* Change genapic interfaces to accept cpumask_t pointers where possible.
* Modify external callers to use cpumask_t pointers in function calls.
* Create new send_IPI_mask_allbutself which is the same as the
send_IPI_mask functions but removes smp_processor_id() from list.
This removes another common need for a temporary cpumask_t variable.
* Functions that used a temp cpumask_t variable for:
cpumask_t allbutme = cpu_online_map;
cpu_clear(smp_processor_id(), allbutme);
if (!cpus_empty(allbutme))
...
become:
if (!cpus_equal(cpu_online_map, cpumask_of_cpu(cpu)))
...
* Other minor code optimizations (like using cpus_clear instead of
CPU_MASK_NONE, etc.)
Applies to linux-2.6.tip/master.
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/smp.c')
| -rw-r--r-- | arch/x86/kernel/smp.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c index 3f92b134ab90..341df946f9a9 100644 --- a/arch/x86/kernel/smp.c +++ b/arch/x86/kernel/smp.c @@ -118,22 +118,22 @@ static void native_smp_send_reschedule(int cpu) WARN_ON(1); return; } - send_IPI_mask(cpumask_of_cpu(cpu), RESCHEDULE_VECTOR); + send_IPI_mask(&cpumask_of_cpu(cpu), RESCHEDULE_VECTOR); } void native_send_call_func_single_ipi(int cpu) { - send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNCTION_SINGLE_VECTOR); + send_IPI_mask(&cpumask_of_cpu(cpu), CALL_FUNCTION_SINGLE_VECTOR); } -void native_send_call_func_ipi(cpumask_t mask) +void native_send_call_func_ipi(const cpumask_t *mask) { cpumask_t allbutself; allbutself = cpu_online_map; cpu_clear(smp_processor_id(), allbutself); - if (cpus_equal(mask, allbutself) && + if (cpus_equal(*mask, allbutself) && cpus_equal(cpu_online_map, cpu_callout_map)) send_IPI_allbutself(CALL_FUNCTION_VECTOR); else |