diff options
Diffstat (limited to 'lib/libzpool/taskq.c')
| -rw-r--r-- | lib/libzpool/taskq.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/libzpool/taskq.c b/lib/libzpool/taskq.c index a2e457ef9..99a181ec3 100644 --- a/lib/libzpool/taskq.c +++ b/lib/libzpool/taskq.c @@ -337,6 +337,36 @@ taskq_destroy(taskq_t *tq) kmem_free(tq, sizeof (taskq_t)); } +/* + * Create a taskq with a specified number of pool threads. Allocate + * and return an array of nthreads kthread_t pointers, one for each + * thread in the pool. The array is not ordered and must be freed + * by the caller. + */ +taskq_t * +taskq_create_synced(const char *name, int nthreads, pri_t pri, + int minalloc, int maxalloc, uint_t flags, kthread_t ***ktpp) +{ + taskq_t *tq; + kthread_t **kthreads = kmem_zalloc(sizeof (*kthreads) * nthreads, + KM_SLEEP); + + (void) pri; (void) minalloc; (void) maxalloc; + + flags &= ~(TASKQ_DYNAMIC | TASKQ_THREADS_CPU_PCT | TASKQ_DC_BATCH); + + tq = taskq_create(name, nthreads, minclsyspri, nthreads, INT_MAX, + flags | TASKQ_PREPOPULATE); + VERIFY(tq != NULL); + VERIFY(tq->tq_nthreads == nthreads); + + for (int i = 0; i < nthreads; i++) { + kthreads[i] = tq->tq_threadlist[i]; + } + *ktpp = kthreads; + return (tq); +} + int taskq_member(taskq_t *tq, kthread_t *t) { |