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authorRusty Russell <rusty@rustcorp.com.au>2009-02-16 17:31:59 -0600
committerRusty Russell <rusty@rustcorp.com.au>2009-02-16 17:32:00 +1030
commit1371be0f7c8f6141b2dbfde6a7ae7885bedb9834 (patch)
treefb2029b6b59f5e68793f9cad2f10f2b1e5a78e7b
parenta0abd520fd69295f4a3735e29a9448a32e101d47 (diff)
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cpumask: Use cpu_*_mask accessors code: alpha
Impact: use new API, fix SMP bug. Use the new accessors rather than frobbing bits directly. This also removes the bug introduced in ee0c468b (alpha: compile fixes) which had Alpha setting bits on an on-stack cpumask, not the cpu_online_map. Cc: Richard Henderson <rth@twiddle.net> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/alpha/kernel/process.c8
-rw-r--r--arch/alpha/kernel/smp.c12
2 files changed, 10 insertions, 10 deletions
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index f238370..8d0097f 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -93,8 +93,8 @@ common_shutdown_1(void *generic_ptr)
if (cpuid != boot_cpuid) {
flags |= 0x00040000UL; /* "remain halted" */
*pflags = flags;
- cpu_clear(cpuid, cpu_present_map);
- cpu_clear(cpuid, cpu_possible_map);
+ set_cpu_present(cpuid, false);
+ set_cpu_possible(cpuid, false);
halt();
}
#endif
@@ -120,8 +120,8 @@ common_shutdown_1(void *generic_ptr)
#ifdef CONFIG_SMP
/* Wait for the secondaries to halt. */
- cpu_clear(boot_cpuid, cpu_present_map);
- cpu_clear(boot_cpuid, cpu_possible_map);
+ set_cpu_present(boot_cpuid, false);
+ set_cpu_possible(boot_cpuid, false);
while (cpus_weight(cpu_present_map))
barrier();
#endif
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 00f1dc3..b1fe567 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -120,12 +120,12 @@ void __cpuinit
smp_callin(void)
{
int cpuid = hard_smp_processor_id();
- cpumask_t mask = cpu_online_map;
- if (cpu_test_and_set(cpuid, mask)) {
+ if (cpu_online(cpuid)) {
printk("??, cpu 0x%x already present??\n", cpuid);
BUG();
}
+ set_cpu_online(cpuid, true);
/* Turn on machine checks. */
wrmces(7);
@@ -436,8 +436,8 @@ setup_smp(void)
((char *)cpubase + i*hwrpb->processor_size);
if ((cpu->flags & 0x1cc) == 0x1cc) {
smp_num_probed++;
- cpu_set(i, cpu_possible_map);
- cpu_set(i, cpu_present_map);
+ set_cpu_possible(i, true);
+ set_cpu_present(i, true);
cpu->pal_revision = boot_cpu_palrev;
}
@@ -470,8 +470,8 @@ smp_prepare_cpus(unsigned int max_cpus)
/* Nothing to do on a UP box, or when told not to. */
if (smp_num_probed == 1 || max_cpus == 0) {
- cpu_possible_map = cpumask_of_cpu(boot_cpuid);
- cpu_present_map = cpumask_of_cpu(boot_cpuid);
+ init_cpu_possible(cpumask_of(boot_cpuid));
+ init_cpu_present(cpumask_of(boot_cpuid));
printk(KERN_INFO "SMP mode deactivated.\n");
return;
}