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authorThomas Gleixner <tglx@linutronix.de>2009-12-03 14:08:46 -0500
committerThomas Gleixner <tglx@linutronix.de>2009-12-14 17:55:32 -0500
commite5931943d02bf751b1ec849c0d2ade23d76a8d41 (patch)
tree119fe3bc583d0d043d97cb9edd98bad52692a546 /arch/powerpc/include
parentfb3a6bbc912b12347614e5742c7c61416cdb0ca0 (diff)
locking: Convert raw_rwlock functions to arch_rwlock
Name space cleanup for rwlock functions. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: linux-arch@vger.kernel.org
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r--arch/powerpc/include/asm/spinlock.h32
1 files changed, 16 insertions, 16 deletions
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index 2fad2c07c593..764094cff681 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -166,8 +166,8 @@ extern void arch_spin_unlock_wait(arch_spinlock_t *lock);
166 * read-locks. 166 * read-locks.
167 */ 167 */
168 168
169#define __raw_read_can_lock(rw) ((rw)->lock >= 0) 169#define arch_read_can_lock(rw) ((rw)->lock >= 0)
170#define __raw_write_can_lock(rw) (!(rw)->lock) 170#define arch_write_can_lock(rw) (!(rw)->lock)
171 171
172#ifdef CONFIG_PPC64 172#ifdef CONFIG_PPC64
173#define __DO_SIGN_EXTEND "extsw %0,%0\n" 173#define __DO_SIGN_EXTEND "extsw %0,%0\n"
@@ -181,7 +181,7 @@ extern void arch_spin_unlock_wait(arch_spinlock_t *lock);
181 * This returns the old value in the lock + 1, 181 * This returns the old value in the lock + 1,
182 * so we got a read lock if the return value is > 0. 182 * so we got a read lock if the return value is > 0.
183 */ 183 */
184static inline long arch_read_trylock(arch_rwlock_t *rw) 184static inline long __arch_read_trylock(arch_rwlock_t *rw)
185{ 185{
186 long tmp; 186 long tmp;
187 187
@@ -205,7 +205,7 @@ static inline long arch_read_trylock(arch_rwlock_t *rw)
205 * This returns the old value in the lock, 205 * This returns the old value in the lock,
206 * so we got the write lock if the return value is 0. 206 * so we got the write lock if the return value is 0.
207 */ 207 */
208static inline long arch_write_trylock(arch_rwlock_t *rw) 208static inline long __arch_write_trylock(arch_rwlock_t *rw)
209{ 209{
210 long tmp, token; 210 long tmp, token;
211 211
@@ -225,10 +225,10 @@ static inline long arch_write_trylock(arch_rwlock_t *rw)
225 return tmp; 225 return tmp;
226} 226}
227 227
228static inline void __raw_read_lock(arch_rwlock_t *rw) 228static inline void arch_read_lock(arch_rwlock_t *rw)
229{ 229{
230 while (1) { 230 while (1) {
231 if (likely(arch_read_trylock(rw) > 0)) 231 if (likely(__arch_read_trylock(rw) > 0))
232 break; 232 break;
233 do { 233 do {
234 HMT_low(); 234 HMT_low();
@@ -239,10 +239,10 @@ static inline void __raw_read_lock(arch_rwlock_t *rw)
239 } 239 }
240} 240}
241 241
242static inline void __raw_write_lock(arch_rwlock_t *rw) 242static inline void arch_write_lock(arch_rwlock_t *rw)
243{ 243{
244 while (1) { 244 while (1) {
245 if (likely(arch_write_trylock(rw) == 0)) 245 if (likely(__arch_write_trylock(rw) == 0))
246 break; 246 break;
247 do { 247 do {
248 HMT_low(); 248 HMT_low();
@@ -253,17 +253,17 @@ static inline void __raw_write_lock(arch_rwlock_t *rw)
253 } 253 }
254} 254}
255 255
256static inline int __raw_read_trylock(arch_rwlock_t *rw) 256static inline int arch_read_trylock(arch_rwlock_t *rw)
257{ 257{
258 return arch_read_trylock(rw) > 0; 258 return __arch_read_trylock(rw) > 0;
259} 259}
260 260
261static inline int __raw_write_trylock(arch_rwlock_t *rw) 261static inline int arch_write_trylock(arch_rwlock_t *rw)
262{ 262{
263 return arch_write_trylock(rw) == 0; 263 return __arch_write_trylock(rw) == 0;
264} 264}
265 265
266static inline void __raw_read_unlock(arch_rwlock_t *rw) 266static inline void arch_read_unlock(arch_rwlock_t *rw)
267{ 267{
268 long tmp; 268 long tmp;
269 269
@@ -280,15 +280,15 @@ static inline void __raw_read_unlock(arch_rwlock_t *rw)
280 : "cr0", "xer", "memory"); 280 : "cr0", "xer", "memory");
281} 281}
282 282
283static inline void __raw_write_unlock(arch_rwlock_t *rw) 283static inline void arch_write_unlock(arch_rwlock_t *rw)
284{ 284{
285 __asm__ __volatile__("# write_unlock\n\t" 285 __asm__ __volatile__("# write_unlock\n\t"
286 LWSYNC_ON_SMP: : :"memory"); 286 LWSYNC_ON_SMP: : :"memory");
287 rw->lock = 0; 287 rw->lock = 0;
288} 288}
289 289
290#define __raw_read_lock_flags(lock, flags) __raw_read_lock(lock) 290#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
291#define __raw_write_lock_flags(lock, flags) __raw_write_lock(lock) 291#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
292 292
293#define arch_spin_relax(lock) __spin_yield(lock) 293#define arch_spin_relax(lock) __spin_yield(lock)
294#define arch_read_relax(lock) __rw_yield(lock) 294#define arch_read_relax(lock) __rw_yield(lock)