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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 12:02:01 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 12:02:01 -0500
commit8f0ddf91f2aeb09602373e400cf8b403e9017210 (patch)
treeb907c35c79caadafff6ad46a91614e30afd2f967 /arch/x86/kernel/dumpstack.c
parent050cbb09dac0402672edeaeac06094ef8ff1749a (diff)
parentb5f91da0a6973bb6f9ff3b91b0e92c0773a458f3 (diff)
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits) clockevents: Convert to raw_spinlock clockevents: Make tick_device_lock static debugobjects: Convert to raw_spinlocks perf_event: Convert to raw_spinlock hrtimers: Convert to raw_spinlocks genirq: Convert irq_desc.lock to raw_spinlock smp: Convert smplocks to raw_spinlocks rtmutes: Convert rtmutex.lock to raw_spinlock sched: Convert pi_lock to raw_spinlock sched: Convert cpupri lock to raw_spinlock sched: Convert rt_runtime_lock to raw_spinlock sched: Convert rq->lock to raw_spinlock plist: Make plist debugging raw_spinlock aware bkl: Fixup core_lock fallout locking: Cleanup the name space completely locking: Further name space cleanups alpha: Fix fallout from locking changes locking: Implement new raw_spinlock locking: Convert raw_rwlock functions to arch_rwlock locking: Convert raw_rwlock to arch_rwlock ...
Diffstat (limited to 'arch/x86/kernel/dumpstack.c')
-rw-r--r--arch/x86/kernel/dumpstack.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index b8ce165dde5d..0a0aa1cec8f1 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -188,7 +188,7 @@ void dump_stack(void)
188} 188}
189EXPORT_SYMBOL(dump_stack); 189EXPORT_SYMBOL(dump_stack);
190 190
191static raw_spinlock_t die_lock = __RAW_SPIN_LOCK_UNLOCKED; 191static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
192static int die_owner = -1; 192static int die_owner = -1;
193static unsigned int die_nest_count; 193static unsigned int die_nest_count;
194 194
@@ -207,11 +207,11 @@ unsigned __kprobes long oops_begin(void)
207 /* racy, but better than risking deadlock. */ 207 /* racy, but better than risking deadlock. */
208 raw_local_irq_save(flags); 208 raw_local_irq_save(flags);
209 cpu = smp_processor_id(); 209 cpu = smp_processor_id();
210 if (!__raw_spin_trylock(&die_lock)) { 210 if (!arch_spin_trylock(&die_lock)) {
211 if (cpu == die_owner) 211 if (cpu == die_owner)
212 /* nested oops. should stop eventually */; 212 /* nested oops. should stop eventually */;
213 else 213 else
214 __raw_spin_lock(&die_lock); 214 arch_spin_lock(&die_lock);
215 } 215 }
216 die_nest_count++; 216 die_nest_count++;
217 die_owner = cpu; 217 die_owner = cpu;
@@ -231,7 +231,7 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
231 die_nest_count--; 231 die_nest_count--;
232 if (!die_nest_count) 232 if (!die_nest_count)
233 /* Nest count reaches zero, release the lock. */ 233 /* Nest count reaches zero, release the lock. */
234 __raw_spin_unlock(&die_lock); 234 arch_spin_unlock(&die_lock);
235 raw_local_irq_restore(flags); 235 raw_local_irq_restore(flags);
236 oops_exit(); 236 oops_exit();
237 237