diff options
Diffstat (limited to 'xlators')
| -rw-r--r-- | xlators/performance/io-threads/src/io-threads.c | 68 |
1 files changed, 38 insertions, 30 deletions
diff --git a/xlators/performance/io-threads/src/io-threads.c b/xlators/performance/io-threads/src/io-threads.c index fbd002267f3..31d86f5e7c1 100644 --- a/xlators/performance/io-threads/src/io-threads.c +++ b/xlators/performance/io-threads/src/io-threads.c @@ -40,6 +40,31 @@ void iot_startup_workers (iot_worker_t **workers, int start_idx, int count, iot_worker_fn workerfunc); void * iot_worker_unordered (void *arg); void * iot_worker_ordered (void *arg); +void iot_startup_worker (iot_worker_t *worker, iot_worker_fn workerfunc); + +/* I know this function modularizes things a bit too much, + * but it is easier on the eyes to read this than see all that locking, + * queueing, and thread firing in the same curly block, as was the + * case before this function. + */ +void +iot_request_queue_and_thread_fire (iot_worker_t *worker, + iot_worker_fn workerfunc, + iot_request_t *req) +{ + pthread_mutex_lock (&worker->qlock); + { + if (iot_worker_active (worker)) + _iot_queue (worker, req); + else { + iot_startup_worker (worker, workerfunc); + _iot_queue (worker, req); + } + } + pthread_mutex_unlock (&worker->qlock); +} + + int iot_unordered_request_balancer (iot_conf_t *conf) @@ -78,20 +103,8 @@ iot_schedule_unordered (iot_conf_t *conf, selected_worker = conf->uworkers[idx]; req = iot_init_request (stub); - /* Having decided that, we must check whether the thread is - * active at all. - */ - pthread_mutex_lock (&selected_worker->qlock); - { - if (iot_worker_active (selected_worker)) - _iot_queue (selected_worker, req); - else { - iot_startup_workers (conf->uworkers, idx, 1, - iot_worker_unordered); - _iot_queue (selected_worker, req); - } - } - pthread_mutex_unlock (&selected_worker->qlock); + iot_request_queue_and_thread_fire (selected_worker, + iot_worker_unordered, req); } /* Assumes inode lock is held. */ @@ -146,17 +159,8 @@ iot_schedule_ordered (iot_conf_t *conf, * added the request to the worker queue. */ selected_worker = conf->oworkers[idx]; - pthread_mutex_lock (&selected_worker->qlock); - { - if (iot_worker_active (selected_worker)) - _iot_queue (selected_worker, req); - else { - iot_startup_workers (conf->oworkers, idx, 1, - iot_worker_ordered); - _iot_queue (selected_worker, req); - } - } - pthread_mutex_unlock (&selected_worker->qlock); + iot_request_queue_and_thread_fire (selected_worker, + iot_worker_ordered, req); } UNLOCK (&inode->lock); } @@ -1731,6 +1735,13 @@ allocate_workers (iot_conf_t *conf, } } +void +iot_startup_worker (iot_worker_t *worker, iot_worker_fn workerfunc) +{ + worker->state = IOT_STATE_ACTIVE; + pthread_create (&worker->thread, NULL, workerfunc, worker); +} + void iot_startup_workers (iot_worker_t **workers, int start_idx, int count, @@ -1740,11 +1751,8 @@ iot_startup_workers (iot_worker_t **workers, int start_idx, int count, int end_idx = 0; end_idx = start_idx + count; - for (i = start_idx; i < end_idx; i++) { - workers[i]->state = IOT_STATE_ACTIVE; - pthread_create (&workers[i]->thread, NULL, workerfunc, - workers[i]); - } + for (i = start_idx; i < end_idx; i++) + iot_startup_worker (workers[i], workerfunc); } |