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| author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-03 08:44:46 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-09-13 11:12:14 +0200 |
| commit | bd31b85960a7fcb2d7ede216460b8da71a88411c (patch) | |
| tree | f2ab1a1105705856c5cdfc71bcf3f7b5f897d30d /arch/arm/kernel/smp.c | |
| parent | a1741e7fcbc19a67520115df480ab17012cc3d0b (diff) | |
| download | blackbird-op-linux-bd31b85960a7fcb2d7ede216460b8da71a88411c.tar.gz blackbird-op-linux-bd31b85960a7fcb2d7ede216460b8da71a88411c.zip | |
locking, ARM: Annotate low level hw locks as raw
Annotate the low level hardware locks which must not be preempted.
In mainline this change documents the low level nature of
the lock - otherwise there's no functional difference. Lockdep
and Sparse checking will work as usual.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/kernel/smp.c')
| -rw-r--r-- | arch/arm/kernel/smp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index d88ff0230e82..4e76e0cf09fb 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -538,7 +538,7 @@ static void percpu_timer_stop(void) } #endif -static DEFINE_SPINLOCK(stop_lock); +static DEFINE_RAW_SPINLOCK(stop_lock); /* * ipi_cpu_stop - handle IPI from smp_send_stop() @@ -547,10 +547,10 @@ static void ipi_cpu_stop(unsigned int cpu) { if (system_state == SYSTEM_BOOTING || system_state == SYSTEM_RUNNING) { - spin_lock(&stop_lock); + raw_spin_lock(&stop_lock); printk(KERN_CRIT "CPU%u: stopping\n", cpu); dump_stack(); - spin_unlock(&stop_lock); + raw_spin_unlock(&stop_lock); } set_cpu_online(cpu, false); |
