diff options
Diffstat (limited to 'include/linux/spinlock.h')
-rw-r--r-- | include/linux/spinlock.h | 64 |
1 files changed, 15 insertions, 49 deletions
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index 4be57ab03478..f0ca7a7a1757 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h | |||
@@ -143,15 +143,6 @@ static inline void smp_mb__after_lock(void) { smp_mb(); } | |||
143 | */ | 143 | */ |
144 | #define spin_unlock_wait(lock) __raw_spin_unlock_wait(&(lock)->raw_lock) | 144 | #define spin_unlock_wait(lock) __raw_spin_unlock_wait(&(lock)->raw_lock) |
145 | 145 | ||
146 | /* | ||
147 | * Pull the _spin_*()/_read_*()/_write_*() functions/declarations: | ||
148 | */ | ||
149 | #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK) | ||
150 | # include <linux/spinlock_api_smp.h> | ||
151 | #else | ||
152 | # include <linux/spinlock_api_up.h> | ||
153 | #endif | ||
154 | |||
155 | #ifdef CONFIG_DEBUG_SPINLOCK | 146 | #ifdef CONFIG_DEBUG_SPINLOCK |
156 | extern void _raw_spin_lock(spinlock_t *lock); | 147 | extern void _raw_spin_lock(spinlock_t *lock); |
157 | #define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock) | 148 | #define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock) |
@@ -268,50 +259,16 @@ static inline void smp_mb__after_lock(void) { smp_mb(); } | |||
268 | 259 | ||
269 | #define spin_lock_irq(lock) _spin_lock_irq(lock) | 260 | #define spin_lock_irq(lock) _spin_lock_irq(lock) |
270 | #define spin_lock_bh(lock) _spin_lock_bh(lock) | 261 | #define spin_lock_bh(lock) _spin_lock_bh(lock) |
271 | |||
272 | #define read_lock_irq(lock) _read_lock_irq(lock) | 262 | #define read_lock_irq(lock) _read_lock_irq(lock) |
273 | #define read_lock_bh(lock) _read_lock_bh(lock) | 263 | #define read_lock_bh(lock) _read_lock_bh(lock) |
274 | |||
275 | #define write_lock_irq(lock) _write_lock_irq(lock) | 264 | #define write_lock_irq(lock) _write_lock_irq(lock) |
276 | #define write_lock_bh(lock) _write_lock_bh(lock) | 265 | #define write_lock_bh(lock) _write_lock_bh(lock) |
277 | 266 | #define spin_unlock(lock) _spin_unlock(lock) | |
278 | /* | 267 | #define read_unlock(lock) _read_unlock(lock) |
279 | * We inline the unlock functions in the nondebug case: | 268 | #define write_unlock(lock) _write_unlock(lock) |
280 | */ | 269 | #define spin_unlock_irq(lock) _spin_unlock_irq(lock) |
281 | #if defined(CONFIG_DEBUG_SPINLOCK) || defined(CONFIG_PREEMPT) || \ | 270 | #define read_unlock_irq(lock) _read_unlock_irq(lock) |
282 | !defined(CONFIG_SMP) | 271 | #define write_unlock_irq(lock) _write_unlock_irq(lock) |
283 | # define spin_unlock(lock) _spin_unlock(lock) | ||
284 | # define read_unlock(lock) _read_unlock(lock) | ||
285 | # define write_unlock(lock) _write_unlock(lock) | ||
286 | # define spin_unlock_irq(lock) _spin_unlock_irq(lock) | ||
287 | # define read_unlock_irq(lock) _read_unlock_irq(lock) | ||
288 | # define write_unlock_irq(lock) _write_unlock_irq(lock) | ||
289 | #else | ||
290 | # define spin_unlock(lock) \ | ||
291 | do {__raw_spin_unlock(&(lock)->raw_lock); __release(lock); } while (0) | ||
292 | # define read_unlock(lock) \ | ||
293 | do {__raw_read_unlock(&(lock)->raw_lock); __release(lock); } while (0) | ||
294 | # define write_unlock(lock) \ | ||
295 | do {__raw_write_unlock(&(lock)->raw_lock); __release(lock); } while (0) | ||
296 | # define spin_unlock_irq(lock) \ | ||
297 | do { \ | ||
298 | __raw_spin_unlock(&(lock)->raw_lock); \ | ||
299 | __release(lock); \ | ||
300 | local_irq_enable(); \ | ||
301 | } while (0) | ||
302 | # define read_unlock_irq(lock) \ | ||
303 | do { \ | ||
304 | __raw_read_unlock(&(lock)->raw_lock); \ | ||
305 | __release(lock); \ | ||
306 | local_irq_enable(); \ | ||
307 | } while (0) | ||
308 | # define write_unlock_irq(lock) \ | ||
309 | do { \ | ||
310 | __raw_write_unlock(&(lock)->raw_lock); \ | ||
311 | __release(lock); \ | ||
312 | local_irq_enable(); \ | ||
313 | } while (0) | ||
314 | #endif | ||
315 | 272 | ||
316 | #define spin_unlock_irqrestore(lock, flags) \ | 273 | #define spin_unlock_irqrestore(lock, flags) \ |
317 | do { \ | 274 | do { \ |
@@ -380,4 +337,13 @@ extern int _atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock); | |||
380 | */ | 337 | */ |
381 | #define spin_can_lock(lock) (!spin_is_locked(lock)) | 338 | #define spin_can_lock(lock) (!spin_is_locked(lock)) |
382 | 339 | ||
340 | /* | ||
341 | * Pull the _spin_*()/_read_*()/_write_*() functions/declarations: | ||
342 | */ | ||
343 | #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK) | ||
344 | # include <linux/spinlock_api_smp.h> | ||
345 | #else | ||
346 | # include <linux/spinlock_api_up.h> | ||
347 | #endif | ||
348 | |||
383 | #endif /* __LINUX_SPINLOCK_H */ | 349 | #endif /* __LINUX_SPINLOCK_H */ |