diff options
| author | David S. Miller <davem@davemloft.net> | 2009-04-08 21:06:35 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-06-11 20:01:10 -0700 |
| commit | 60962a3513a90e260d975940535ecbcfe5f5b4a4 (patch) | |
| tree | ec9695f7a0b6d2dda4720ea0c0286f51d80da6ac /arch | |
| parent | 01683de16233af7676146083f644c823ac5f246d (diff) | |
sparc64: Fix smp_callin() locking.
[ Upstream commit 8e255baa449df3049a8827a7f1f4f12b6921d0d1 ]
Interrupts must be disabled when taking the IPI lock.
Caught by lockdep.
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc64/kernel/smp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index 2be166c544c..abe61901921 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -118,9 +118,9 @@ void __cpuinit smp_callin(void) while (!cpu_isset(cpuid, smp_commenced_mask)) rmb(); - ipi_call_lock(); + ipi_call_lock_irq(); cpu_set(cpuid, cpu_online_map); - ipi_call_unlock(); + ipi_call_unlock_irq(); /* idle thread is expected to have preempt disabled */ preempt_disable(); |