diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-26 16:17:32 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-26 16:17:32 +0200 |
commit | 3cfef9524677a4ecb392d6fbffe6ebce6302f1d4 (patch) | |
tree | 88647d9dc50d634dee9cfeb7f354d620977a2f33 /kernel/semaphore.c | |
parent | 982653009b883ef1529089e3e6f1ae2fee41cbe2 (diff) | |
parent | 68cc3990a545dc0da221b4844dd8b9c06623a6c5 (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 'kernel/semaphore.c')
-rw-r--r-- | kernel/semaphore.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/kernel/semaphore.c b/kernel/semaphore.c index 94a62c0d4ade..d831841e55a7 100644 --- a/kernel/semaphore.c +++ b/kernel/semaphore.c @@ -54,12 +54,12 @@ void down(struct semaphore *sem) { unsigned long flags; - spin_lock_irqsave(&sem->lock, flags); + raw_spin_lock_irqsave(&sem->lock, flags); if (likely(sem->count > 0)) sem->count--; else __down(sem); - spin_unlock_irqrestore(&sem->lock, flags); + raw_spin_unlock_irqrestore(&sem->lock, flags); } EXPORT_SYMBOL(down); @@ -77,12 +77,12 @@ int down_interruptible(struct semaphore *sem) unsigned long flags; int result = 0; - spin_lock_irqsave(&sem->lock, flags); + raw_spin_lock_irqsave(&sem->lock, flags); if (likely(sem->count > 0)) sem->count--; else result = __down_interruptible(sem); - spin_unlock_irqrestore(&sem->lock, flags); + raw_spin_unlock_irqrestore(&sem->lock, flags); return result; } @@ -103,12 +103,12 @@ int down_killable(struct semaphore *sem) unsigned long flags; int result = 0; - spin_lock_irqsave(&sem->lock, flags); + raw_spin_lock_irqsave(&sem->lock, flags); if (likely(sem->count > 0)) sem->count--; else result = __down_killable(sem); - spin_unlock_irqrestore(&sem->lock, flags); + raw_spin_unlock_irqrestore(&sem->lock, flags); return result; } @@ -132,11 +132,11 @@ int down_trylock(struct semaphore *sem) unsigned long flags; int count; - spin_lock_irqsave(&sem->lock, flags); + raw_spin_lock_irqsave(&sem->lock, flags); count = sem->count - 1; if (likely(count >= 0)) sem->count = count; - spin_unlock_irqrestore(&sem->lock, flags); + raw_spin_unlock_irqrestore(&sem->lock, flags); return (count < 0); } @@ -157,12 +157,12 @@ int down_timeout(struct semaphore *sem, long jiffies) unsigned long flags; int result = 0; - spin_lock_irqsave(&sem->lock, flags); + raw_spin_lock_irqsave(&sem->lock, flags); if (likely(sem->count > 0)) sem->count--; else result = __down_timeout(sem, jiffies); - spin_unlock_irqrestore(&sem->lock, flags); + raw_spin_unlock_irqrestore(&sem->lock, flags); return result; } @@ -179,12 +179,12 @@ void up(struct semaphore *sem) { unsigned long flags; - spin_lock_irqsave(&sem->lock, flags); + raw_spin_lock_irqsave(&sem->lock, flags); if (likely(list_empty(&sem->wait_list))) sem->count++; else __up(sem); - spin_unlock_irqrestore(&sem->lock, flags); + raw_spin_unlock_irqrestore(&sem->lock, flags); } EXPORT_SYMBOL(up); @@ -217,9 +217,9 @@ static inline int __sched __down_common(struct semaphore *sem, long state, if (timeout <= 0) goto timed_out; __set_task_state(task, state); - spin_unlock_irq(&sem->lock); + raw_spin_unlock_irq(&sem->lock); timeout = schedule_timeout(timeout); - spin_lock_irq(&sem->lock); + raw_spin_lock_irq(&sem->lock); if (waiter.up) return 0; } |