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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-26 16:17:32 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-26 16:17:32 +0200
commit3cfef9524677a4ecb392d6fbffe6ebce6302f1d4 (patch)
tree88647d9dc50d634dee9cfeb7f354d620977a2f33 /arch/arm/kernel
parent982653009b883ef1529089e3e6f1ae2fee41cbe2 (diff)
parent68cc3990a545dc0da221b4844dd8b9c06623a6c5 (diff)
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock() lockdep: Comment all warnings lib: atomic64: Change the type of local lock to raw_spinlock_t locking, lib/atomic64: Annotate atomic64_lock::lock as raw locking, x86, iommu: Annotate qi->q_lock as raw locking, x86, iommu: Annotate irq_2_ir_lock as raw locking, x86, iommu: Annotate iommu->register_lock as raw locking, dma, ipu: Annotate bank_lock as raw locking, ARM: Annotate low level hw locks as raw locking, drivers/dca: Annotate dca_lock as raw locking, powerpc: Annotate uic->lock as raw locking, x86: mce: Annotate cmci_discover_lock as raw locking, ACPI: Annotate c3_lock as raw locking, oprofile: Annotate oprofilefs lock as raw locking, video: Annotate vga console lock as raw locking, latencytop: Annotate latency_lock as raw locking, timer_stats: Annotate table_lock as raw locking, rwsem: Annotate inner lock as raw locking, semaphores: Annotate inner lock as raw locking, sched: Annotate thread_group_cputimer as raw ... Fix up conflicts in kernel/posix-cpu-timers.c manually: making cputimer->cputime a raw lock conflicted with the ABBA fix in commit bcd5cff7216f ("cputimer: Cure lock inversion").
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/dma.c2
-rw-r--r--arch/arm/kernel/smp.c6
-rw-r--r--arch/arm/kernel/traps.c20
3 files changed, 14 insertions, 14 deletions
diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c
index 2c4a185f92c..7b829d9663b 100644
--- a/arch/arm/kernel/dma.c
+++ b/arch/arm/kernel/dma.c
@@ -23,7 +23,7 @@
#include <asm/mach/dma.h>
-DEFINE_SPINLOCK(dma_spin_lock);
+DEFINE_RAW_SPINLOCK(dma_spin_lock);
EXPORT_SYMBOL(dma_spin_lock);
static dma_t *dma_chan[MAX_DMA_CHANNELS];
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 854ce33715f..94f34a6c861 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -566,7 +566,7 @@ 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()
@@ -575,10 +575,10 @@ 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);
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 7f5b99eb2c5..99a57270250 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -257,7 +257,7 @@ static int __die(const char *str, int err, struct thread_info *thread, struct pt
return ret;
}
-static DEFINE_SPINLOCK(die_lock);
+static DEFINE_RAW_SPINLOCK(die_lock);
/*
* This function is protected against re-entrancy.
@@ -269,7 +269,7 @@ void die(const char *str, struct pt_regs *regs, int err)
oops_enter();
- spin_lock_irq(&die_lock);
+ raw_spin_lock_irq(&die_lock);
console_verbose();
bust_spinlocks(1);
if (!user_mode(regs))
@@ -281,7 +281,7 @@ void die(const char *str, struct pt_regs *regs, int err)
bust_spinlocks(0);
add_taint(TAINT_DIE);
- spin_unlock_irq(&die_lock);
+ raw_spin_unlock_irq(&die_lock);
oops_exit();
if (in_interrupt())
@@ -324,24 +324,24 @@ int is_valid_bugaddr(unsigned long pc)
#endif
static LIST_HEAD(undef_hook);
-static DEFINE_SPINLOCK(undef_lock);
+static DEFINE_RAW_SPINLOCK(undef_lock);
void register_undef_hook(struct undef_hook *hook)
{
unsigned long flags;
- spin_lock_irqsave(&undef_lock, flags);
+ raw_spin_lock_irqsave(&undef_lock, flags);
list_add(&hook->node, &undef_hook);
- spin_unlock_irqrestore(&undef_lock, flags);
+ raw_spin_unlock_irqrestore(&undef_lock, flags);
}
void unregister_undef_hook(struct undef_hook *hook)
{
unsigned long flags;
- spin_lock_irqsave(&undef_lock, flags);
+ raw_spin_lock_irqsave(&undef_lock, flags);
list_del(&hook->node);
- spin_unlock_irqrestore(&undef_lock, flags);
+ raw_spin_unlock_irqrestore(&undef_lock, flags);
}
static int call_undef_hook(struct pt_regs *regs, unsigned int instr)
@@ -350,12 +350,12 @@ static int call_undef_hook(struct pt_regs *regs, unsigned int instr)
unsigned long flags;
int (*fn)(struct pt_regs *regs, unsigned int instr) = NULL;
- spin_lock_irqsave(&undef_lock, flags);
+ raw_spin_lock_irqsave(&undef_lock, flags);
list_for_each_entry(hook, &undef_hook, node)
if ((instr & hook->instr_mask) == hook->instr_val &&
(regs->ARM_cpsr & hook->cpsr_mask) == hook->cpsr_val)
fn = hook->fn;
- spin_unlock_irqrestore(&undef_lock, flags);
+ raw_spin_unlock_irqrestore(&undef_lock, flags);
return fn ? fn(regs, instr) : 1;
}