X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Fspinlock.c;h=0375fcd5921df5fe390ec6a3f1c1ce402d240f80;hb=ab27642b59b68d18df5a9aa5fa81b5ab5735aa77;hp=e15ed17863f16d1c266b82124e76222f1829e26c;hpb=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2;p=linux-2.6

diff --git a/kernel/spinlock.c b/kernel/spinlock.c
index e15ed17863..0375fcd592 100644
--- a/kernel/spinlock.c
+++ b/kernel/spinlock.c
@@ -3,7 +3,10 @@
  *
  * Author: Zwane Mwaikambo <zwane@fsmlabs.com>
  *
- * Copyright (2004) Ingo Molnar
+ * Copyright (2004, 2005) Ingo Molnar
+ *
+ * This file contains the spinlock/rwlock implementations for the
+ * SMP and the DEBUG_SPINLOCK cases. (UP-nondebug inlines them)
  */
 
 #include <linux/config.h>
@@ -17,12 +20,12 @@
  * Generic declaration of the raw read_trylock() function,
  * architectures are supposed to optimize this:
  */
-int __lockfunc generic_raw_read_trylock(rwlock_t *lock)
+int __lockfunc generic__raw_read_trylock(raw_rwlock_t *lock)
 {
-	_raw_read_lock(lock);
+	__raw_read_lock(lock);
 	return 1;
 }
-EXPORT_SYMBOL(generic_raw_read_trylock);
+EXPORT_SYMBOL(generic__raw_read_trylock);
 
 int __lockfunc _spin_trylock(spinlock_t *lock)
 {
@@ -57,7 +60,7 @@ int __lockfunc _write_trylock(rwlock_t *lock)
 }
 EXPORT_SYMBOL(_write_trylock);
 
-#ifndef CONFIG_PREEMPT
+#if !defined(CONFIG_PREEMPT) || !defined(CONFIG_SMP)
 
 void __lockfunc _read_lock(rwlock_t *lock)
 {
@@ -72,7 +75,7 @@ unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock)
 
 	local_irq_save(flags);
 	preempt_disable();
-	_raw_spin_lock_flags(lock, flags);
+	_raw_spin_lock_flags(lock, &flags);
 	return flags;
 }
 EXPORT_SYMBOL(_spin_lock_irqsave);
@@ -294,7 +297,7 @@ EXPORT_SYMBOL(_spin_unlock_irq);
 void __lockfunc _spin_unlock_bh(spinlock_t *lock)
 {
 	_raw_spin_unlock(lock);
-	preempt_enable();
+	preempt_enable_no_resched();
 	local_bh_enable();
 }
 EXPORT_SYMBOL(_spin_unlock_bh);
@@ -318,7 +321,7 @@ EXPORT_SYMBOL(_read_unlock_irq);
 void __lockfunc _read_unlock_bh(rwlock_t *lock)
 {
 	_raw_read_unlock(lock);
-	preempt_enable();
+	preempt_enable_no_resched();
 	local_bh_enable();
 }
 EXPORT_SYMBOL(_read_unlock_bh);
@@ -342,7 +345,7 @@ EXPORT_SYMBOL(_write_unlock_irq);
 void __lockfunc _write_unlock_bh(rwlock_t *lock)
 {
 	_raw_write_unlock(lock);
-	preempt_enable();
+	preempt_enable_no_resched();
 	local_bh_enable();
 }
 EXPORT_SYMBOL(_write_unlock_bh);
@@ -354,7 +357,7 @@ int __lockfunc _spin_trylock_bh(spinlock_t *lock)
 	if (_raw_spin_trylock(lock))
 		return 1;
 
-	preempt_enable();
+	preempt_enable_no_resched();
 	local_bh_enable();
 	return 0;
 }