include/linux/ww_mutex.h

98  * ww_acquire_init - initialize a w/w acquire context
99  * @ctx: w/w acquire context to initialize
102  * Initializes an context to acquire multiple mutexes of the given w/w class.
114  * Nesting of acquire contexts for _different_ w/w classes is possible, subject
117  * An acquire context must be released with ww_acquire_fini by the same task
147  * ww_acquire_done - marks the end of the acquire phase
148  * @ctx: the acquire context
150  * Marks the end of the acquire phase, any further w/w mutex lock calls using
154  * code and clearly designated the acquire phase from actually using the locked
168  * ww_acquire_fini - releases a w/w acquire context
169  * @ctx: the acquire context to free
171  * Releases a w/w acquire context. This must be called _after_ all acquired w/w
194  * ww_mutex_lock - acquire the w/w mutex
196  * @ctx: w/w acquire context, or NULL to acquire only a single lock.
203  * for backing off by returning -EDEADLK (die case). Trying to acquire the
209  * calling ww_mutex_lock_slow. Alternatively callers can opt to not acquire this
210  * lock and proceed with trying to acquire further w/w mutexes (e.g. when
218  * of the same w/w lock class as was used to initialize the acquire context.
225  * ww_mutex_lock_interruptible - acquire the w/w mutex, interruptible
227  * @ctx: w/w acquire context
234  * for backing off by returning -EDEADLK (die case). Trying to acquire the
242  * not acquire this lock and proceed with trying to acquire further w/w mutexes
250  * of the same w/w lock class as was used to initialize the acquire context.
260  * @ctx: w/w acquire context
268  * Afterwards the caller may continue to (re)acquire the other w/w mutexes it
294  * @ctx: w/w acquire context
304  * Afterwards the caller may continue to (re)acquire the other w/w mutexes it
329  * ww_mutex_trylock - tries to acquire the w/w mutex without acquire context
332  * Trylocks a mutex without acquire context, so no deadlock detection is