diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-08-20 11:52:15 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-08-20 11:52:15 +0200 |
commit | 7393423dd9b5790a3115873be355e9fc862bce8f (patch) | |
tree | fc83214602c8ce41dc06d5c8e21deada679521f7 /kernel/spinlock.c | |
parent | 8df9676d6402563da91427e8d9f2da8a4598aede (diff) | |
parent | 1fca25427482387689fa27594c992a961d98768f (diff) |
Merge branch 'linus' into x86/cleanups
Diffstat (limited to 'kernel/spinlock.c')
-rw-r--r-- | kernel/spinlock.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/kernel/spinlock.c b/kernel/spinlock.c index a1fb54c93cdd..29ab20749dd3 100644 --- a/kernel/spinlock.c +++ b/kernel/spinlock.c @@ -290,8 +290,8 @@ void __lockfunc _spin_lock_nested(spinlock_t *lock, int subclass) spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_); LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); } - EXPORT_SYMBOL(_spin_lock_nested); + unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, int subclass) { unsigned long flags; @@ -311,9 +311,17 @@ unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, int subclas #endif return flags; } - EXPORT_SYMBOL(_spin_lock_irqsave_nested); +void __lockfunc _spin_lock_nest_lock(spinlock_t *lock, + struct lockdep_map *nest_lock) +{ + preempt_disable(); + spin_acquire_nest(&lock->dep_map, 0, 0, nest_lock, _RET_IP_); + LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); +} +EXPORT_SYMBOL(_spin_lock_nest_lock); + #endif void __lockfunc _spin_unlock(spinlock_t *lock) |