diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2010-02-18 02:22:27 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-02-19 14:52:33 +1100 |
| commit | 071c06cb570d38efe23a124e885f2f3e643a9206 (patch) | |
| tree | 76c3e1193501db7a8b8d2ff21ad31d5592534c53 | |
| parent | b8f87782e82709d613c5d2a165d1443478e57c00 (diff) | |
powerpc: Convert pmc_owner_lock to raw_spinlock
pmc_owner_lock needs to be a real spinlock in RT. Convert it to
raw_spinlock.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/kernel/pmc.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c index 0516e2d3e02..461499b43cf 100644 --- a/arch/powerpc/kernel/pmc.c +++ b/arch/powerpc/kernel/pmc.c @@ -37,7 +37,7 @@ static void dummy_perf(struct pt_regs *regs) } -static DEFINE_SPINLOCK(pmc_owner_lock); +static DEFINE_RAW_SPINLOCK(pmc_owner_lock); static void *pmc_owner_caller; /* mostly for debugging */ perf_irq_t perf_irq = dummy_perf; @@ -45,7 +45,7 @@ int reserve_pmc_hardware(perf_irq_t new_perf_irq) { int err = 0; - spin_lock(&pmc_owner_lock); + raw_spin_lock(&pmc_owner_lock); if (pmc_owner_caller) { printk(KERN_WARNING "reserve_pmc_hardware: " @@ -59,21 +59,21 @@ int reserve_pmc_hardware(perf_irq_t new_perf_irq) perf_irq = new_perf_irq ? new_perf_irq : dummy_perf; out: - spin_unlock(&pmc_owner_lock); + raw_spin_unlock(&pmc_owner_lock); return err; } EXPORT_SYMBOL_GPL(reserve_pmc_hardware); void release_pmc_hardware(void) { - spin_lock(&pmc_owner_lock); + raw_spin_lock(&pmc_owner_lock); WARN_ON(! pmc_owner_caller); pmc_owner_caller = NULL; perf_irq = dummy_perf; - spin_unlock(&pmc_owner_lock); + raw_spin_unlock(&pmc_owner_lock); } EXPORT_SYMBOL_GPL(release_pmc_hardware); |