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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-05-07 11:29:25 +1000 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-05-07 11:29:25 +1000 |
commit | 1ed31d6db90d51010545921e59d369d2f92b7ac2 (patch) | |
tree | 358a0b346bc8135cd5e53700eb44308b1a7c8c5b /lib/rwsem-spinlock.c | |
parent | ceba1abcb00b0ef0b1efcd715285f6e05523edef (diff) | |
parent | 722154e4cacf015161efe60009ae9be23d492296 (diff) | |
download | kernel_samsung_crespo-1ed31d6db90d51010545921e59d369d2f92b7ac2.zip kernel_samsung_crespo-1ed31d6db90d51010545921e59d369d2f92b7ac2.tar.gz kernel_samsung_crespo-1ed31d6db90d51010545921e59d369d2f92b7ac2.tar.bz2 |
Merge commit 'origin/master' into next
Diffstat (limited to 'lib/rwsem-spinlock.c')
-rw-r--r-- | lib/rwsem-spinlock.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/lib/rwsem-spinlock.c b/lib/rwsem-spinlock.c index ccf95bf..ffc9fc7 100644 --- a/lib/rwsem-spinlock.c +++ b/lib/rwsem-spinlock.c @@ -143,13 +143,14 @@ void __sched __down_read(struct rw_semaphore *sem) { struct rwsem_waiter waiter; struct task_struct *tsk; + unsigned long flags; - spin_lock_irq(&sem->wait_lock); + spin_lock_irqsave(&sem->wait_lock, flags); if (sem->activity >= 0 && list_empty(&sem->wait_list)) { /* granted */ sem->activity++; - spin_unlock_irq(&sem->wait_lock); + spin_unlock_irqrestore(&sem->wait_lock, flags); goto out; } @@ -164,7 +165,7 @@ void __sched __down_read(struct rw_semaphore *sem) list_add_tail(&waiter.list, &sem->wait_list); /* we don't need to touch the semaphore struct anymore */ - spin_unlock_irq(&sem->wait_lock); + spin_unlock_irqrestore(&sem->wait_lock, flags); /* wait to be given the lock */ for (;;) { @@ -209,13 +210,14 @@ void __sched __down_write_nested(struct rw_semaphore *sem, int subclass) { struct rwsem_waiter waiter; struct task_struct *tsk; + unsigned long flags; - spin_lock_irq(&sem->wait_lock); + spin_lock_irqsave(&sem->wait_lock, flags); if (sem->activity == 0 && list_empty(&sem->wait_list)) { /* granted */ sem->activity = -1; - spin_unlock_irq(&sem->wait_lock); + spin_unlock_irqrestore(&sem->wait_lock, flags); goto out; } @@ -230,7 +232,7 @@ void __sched __down_write_nested(struct rw_semaphore *sem, int subclass) list_add_tail(&waiter.list, &sem->wait_list); /* we don't need to touch the semaphore struct anymore */ - spin_unlock_irq(&sem->wait_lock); + spin_unlock_irqrestore(&sem->wait_lock, flags); /* wait to be given the lock */ for (;;) { |