/*
- * Rated submission helpers
+ * Generic workqueue offload mechanism
*
* Copyright (C) 2015 Jens Axboe <axboe@kernel.dk>
*
#include "fio.h"
#include "flist.h"
#include "workqueue.h"
-#include "lib/getrusage.h"
+#include "smalloc.h"
enum {
SW_F_IDLE = 1 << 0,
unsigned int eflags = 0, ret = 0;
FLIST_HEAD(local_list);
+ sk_out_assign(sw->sk_out);
+
if (wq->ops.nice) {
if (nice(wq->ops.nice) < 0) {
log_err("workqueue: nice %s\n", strerror(errno));
pthread_mutex_lock(&sw->lock);
sw->flags |= (SW_F_EXITED | eflags);
pthread_mutex_unlock(&sw->lock);
+ sk_out_drop();
return NULL;
}
struct submit_worker *sw;
int i;
+ if (!wq->workers)
+ return;
+
for (i = 0; i < wq->max_workers; i++) {
sw = &wq->workers[i];
}
} while (shutdown && shutdown != wq->max_workers);
- free(wq->workers);
+ sfree(wq->workers);
+ wq->workers = NULL;
pthread_mutex_destroy(&wq->flush_lock);
pthread_cond_destroy(&wq->flush_cond);
pthread_mutex_destroy(&wq->stat_lock);
}
-static int start_worker(struct workqueue *wq, unsigned int index)
+static int start_worker(struct workqueue *wq, unsigned int index,
+ struct sk_out *sk_out)
{
struct submit_worker *sw = &wq->workers[index];
int ret;
+ pthread_condattr_t cattr;
+ pthread_mutexattr_t mattr;
INIT_FLIST_HEAD(&sw->work_list);
- pthread_cond_init(&sw->cond, NULL);
- pthread_mutex_init(&sw->lock, NULL);
+ ret = pthread_condattr_init(&cattr);
+ if (ret)
+ return ret;
+ ret = pthread_mutexattr_init(&mattr);
+ if (ret)
+ return ret;
+#ifdef FIO_HAVE_PSHARED_MUTEX
+ ret = pthread_condattr_setpshared(&cattr, PTHREAD_PROCESS_SHARED);
+ if (ret)
+ return ret;
+ ret = pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
+ if (ret)
+ return ret;
+#endif
+ pthread_cond_init(&sw->cond, &cattr);
+ pthread_mutex_init(&sw->lock, &mattr);
sw->wq = wq;
sw->index = index;
+ sw->sk_out = sk_out;
if (wq->ops.alloc_worker_fn) {
ret = wq->ops.alloc_worker_fn(sw);
}
int workqueue_init(struct thread_data *td, struct workqueue *wq,
- struct workqueue_ops *ops, unsigned max_pending)
+ struct workqueue_ops *ops, unsigned int max_workers,
+ struct sk_out *sk_out)
{
unsigned int running;
int i, error;
+ int ret;
+ pthread_condattr_t cattr;
+ pthread_mutexattr_t mattr;
- wq->max_workers = max_pending;
+ wq->max_workers = max_workers;
wq->td = td;
wq->ops = *ops;
wq->work_seq = 0;
wq->next_free_worker = 0;
- pthread_cond_init(&wq->flush_cond, NULL);
- pthread_mutex_init(&wq->flush_lock, NULL);
- pthread_mutex_init(&wq->stat_lock, NULL);
- wq->workers = calloc(wq->max_workers, sizeof(struct submit_worker));
+ ret = pthread_condattr_init(&cattr);
+ if (ret) {
+ td_verror(td, ret, "pthread_condattr_init");
+ goto err;
+ }
+ ret = pthread_mutexattr_init(&mattr);
+ if (ret) {
+ td_verror(td, ret, "pthread_mutexattr_init");
+ goto err;
+ }
+#ifdef FIO_HAVE_PSHARED_MUTEX
+ ret = pthread_condattr_setpshared(&cattr, PTHREAD_PROCESS_SHARED);
+ if (ret) {
+ td_verror(td, ret, "pthread_condattr_setpshared");
+ goto err;
+ }
+ ret = pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
+ if (ret) {
+ td_verror(td, ret, "pthread_mutexattr_setpshared");
+ goto err;
+ }
+#endif
+ pthread_cond_init(&wq->flush_cond, &cattr);
+ pthread_mutex_init(&wq->flush_lock, &mattr);
+ pthread_mutex_init(&wq->stat_lock, &mattr);
+
+ wq->workers = smalloc(wq->max_workers * sizeof(struct submit_worker));
for (i = 0; i < wq->max_workers; i++)
- if (start_worker(wq, i))
+ if (start_worker(wq, i, sk_out))
break;
wq->max_workers = i;