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| author | Tony Luck <tony.luck@intel.com> | 2005-05-17 15:53:14 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-05-17 15:53:14 -0700 |
| commit | 325a479c4c110db278ef3361460a48c4093252cc (patch) | |
| tree | bcfbf4d0647d9442045639a5c19da59d55190e81 /kernel/stop_machine.c | |
| parent | ebcc80c1b6629a445f7471cc1ddb48faf8a84e70 (diff) | |
| parent | 7f9eaedf894dbaa08c157832e9a6c9c03ffed1ed (diff) | |
| download | kernel-crypto-325a479c4c110db278ef3361460a48c4093252cc.tar.gz kernel-crypto-325a479c4c110db278ef3361460a48c4093252cc.tar.xz kernel-crypto-325a479c4c110db278ef3361460a48c4093252cc.zip | |
Merge with temp tree to get David's gdb inferior calls patch
Diffstat (limited to 'kernel/stop_machine.c')
| -rw-r--r-- | kernel/stop_machine.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c index c39ed70af17..6116b25aa7c 100644 --- a/kernel/stop_machine.c +++ b/kernel/stop_machine.c @@ -33,7 +33,7 @@ static int stopmachine(void *cpu) set_cpus_allowed(current, cpumask_of_cpu((int)(long)cpu)); /* Ack: we are alive */ - mb(); /* Theoretically the ack = 0 might not be on this CPU yet. */ + smp_mb(); /* Theoretically the ack = 0 might not be on this CPU yet. */ atomic_inc(&stopmachine_thread_ack); /* Simple state machine */ @@ -43,14 +43,14 @@ static int stopmachine(void *cpu) local_irq_disable(); irqs_disabled = 1; /* Ack: irqs disabled. */ - mb(); /* Must read state first. */ + smp_mb(); /* Must read state first. */ atomic_inc(&stopmachine_thread_ack); } else if (stopmachine_state == STOPMACHINE_PREPARE && !prepared) { /* Everyone is in place, hold CPU. */ preempt_disable(); prepared = 1; - mb(); /* Must read state first. */ + smp_mb(); /* Must read state first. */ atomic_inc(&stopmachine_thread_ack); } /* Yield in first stage: migration threads need to @@ -62,7 +62,7 @@ static int stopmachine(void *cpu) } /* Ack: we are exiting. */ - mb(); /* Must read state first. */ + smp_mb(); /* Must read state first. */ atomic_inc(&stopmachine_thread_ack); if (irqs_disabled) @@ -77,7 +77,7 @@ static int stopmachine(void *cpu) static void stopmachine_set_state(enum stopmachine_state state) { atomic_set(&stopmachine_thread_ack, 0); - wmb(); + smp_wmb(); stopmachine_state = state; while (atomic_read(&stopmachine_thread_ack) != stopmachine_num_threads) cpu_relax(); |