static int ptlrpc_server_post_idle_rqbds (struct ptlrpc_service *svc);
static CFS_LIST_HEAD(ptlrpc_all_services);
-spinlock_t ptlrpc_all_services_lock;
+cfs_spinlock_t ptlrpc_all_services_lock;
static char *
ptlrpc_alloc_request_buffer (int size)
return (NULL);
}
- spin_lock(&svc->srv_lock);
- list_add(&rqbd->rqbd_list, &svc->srv_idle_rqbds);
+ cfs_spin_lock(&svc->srv_lock);
+ cfs_list_add(&rqbd->rqbd_list, &svc->srv_idle_rqbds);
svc->srv_nbufs++;
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
return (rqbd);
}
struct ptlrpc_service *svc = rqbd->rqbd_service;
LASSERT (rqbd->rqbd_refcount == 0);
- LASSERT (list_empty(&rqbd->rqbd_reqs));
+ LASSERT (cfs_list_empty(&rqbd->rqbd_reqs));
- spin_lock(&svc->srv_lock);
- list_del(&rqbd->rqbd_list);
+ cfs_spin_lock(&svc->srv_lock);
+ cfs_list_del(&rqbd->rqbd_list);
svc->srv_nbufs--;
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
ptlrpc_free_request_buffer (rqbd->rqbd_buffer, svc->srv_buf_size);
OBD_FREE_PTR(rqbd);
#define HRT_STOPPING 1
struct ptlrpc_hr_thread {
- spinlock_t hrt_lock;
- unsigned long hrt_flags;
- cfs_waitq_t hrt_wait;
- struct list_head hrt_queue;
- struct completion hrt_completion;
+ cfs_spinlock_t hrt_lock;
+ unsigned long hrt_flags;
+ cfs_waitq_t hrt_wait;
+ cfs_list_t hrt_queue;
+ cfs_completion_t hrt_completion;
};
struct ptlrpc_hr_service {
};
struct rs_batch {
- struct list_head rsb_replies;
+ cfs_list_t rsb_replies;
struct ptlrpc_service *rsb_svc;
unsigned int rsb_n_replies;
};
}
/**
+ * Choose an hr thread to dispatch requests to.
+ */
+static unsigned int get_hr_thread_index(struct ptlrpc_hr_service *hr)
+{
+ unsigned int idx;
+
+ /* Concurrent modification of hr_index w/o any spinlock
+ protection is harmless as long as the result fits
+ [0..(hr_n_threads-1)] range and each thread gets near equal
+ load. */
+ idx = hr->hr_index;
+ hr->hr_index = (idx >= hr->hr_n_threads - 1) ? 0 : idx + 1;
+ return idx;
+}
+
+/**
* Dispatch all replies accumulated in the batch to one from
* dedicated reply handling threads.
*
struct ptlrpc_hr_service *hr = ptlrpc_hr;
int idx;
- idx = hr->hr_index++;
- if (hr->hr_index >= hr->hr_n_threads)
- hr->hr_index = 0;
+ idx = get_hr_thread_index(hr);
- spin_lock(&hr->hr_threads[idx].hrt_lock);
- list_splice_init(&b->rsb_replies,
- &hr->hr_threads[idx].hrt_queue);
- spin_unlock(&hr->hr_threads[idx].hrt_lock);
+ cfs_spin_lock(&hr->hr_threads[idx].hrt_lock);
+ cfs_list_splice_init(&b->rsb_replies,
+ &hr->hr_threads[idx].hrt_queue);
+ cfs_spin_unlock(&hr->hr_threads[idx].hrt_lock);
cfs_waitq_signal(&hr->hr_threads[idx].hrt_wait);
b->rsb_n_replies = 0;
}
if (svc != b->rsb_svc || b->rsb_n_replies >= MAX_SCHEDULED) {
if (b->rsb_svc != NULL) {
rs_batch_dispatch(b);
- spin_unlock(&b->rsb_svc->srv_lock);
+ cfs_spin_unlock(&b->rsb_svc->srv_lock);
}
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
b->rsb_svc = svc;
}
- spin_lock(&rs->rs_lock);
+ cfs_spin_lock(&rs->rs_lock);
rs->rs_scheduled_ever = 1;
if (rs->rs_scheduled == 0) {
- list_move(&rs->rs_list, &b->rsb_replies);
+ cfs_list_move(&rs->rs_list, &b->rsb_replies);
rs->rs_scheduled = 1;
b->rsb_n_replies++;
}
rs->rs_committed = 1;
- spin_unlock(&rs->rs_lock);
+ cfs_spin_unlock(&rs->rs_lock);
}
/**
{
if (b->rsb_svc != 0) {
rs_batch_dispatch(b);
- spin_unlock(&b->rsb_svc->srv_lock);
+ cfs_spin_unlock(&b->rsb_svc->srv_lock);
}
}
int idx;
ENTRY;
- LASSERT(list_empty(&rs->rs_list));
+ LASSERT(cfs_list_empty(&rs->rs_list));
- idx = hr->hr_index++;
- if (hr->hr_index >= hr->hr_n_threads)
- hr->hr_index = 0;
- spin_lock(&hr->hr_threads[idx].hrt_lock);
- list_add_tail(&rs->rs_list, &hr->hr_threads[idx].hrt_queue);
- spin_unlock(&hr->hr_threads[idx].hrt_lock);
+ idx = get_hr_thread_index(hr);
+ cfs_spin_lock(&hr->hr_threads[idx].hrt_lock);
+ cfs_list_add_tail(&rs->rs_list, &hr->hr_threads[idx].hrt_queue);
+ cfs_spin_unlock(&hr->hr_threads[idx].hrt_lock);
cfs_waitq_signal(&hr->hr_threads[idx].hrt_wait);
EXIT;
#else
- list_add_tail(&rs->rs_list, &rs->rs_service->srv_reply_queue);
+ cfs_list_add_tail(&rs->rs_list, &rs->rs_service->srv_reply_queue);
#endif
}
}
rs->rs_scheduled = 1;
- list_del_init(&rs->rs_list);
+ cfs_list_del_init(&rs->rs_list);
ptlrpc_dispatch_difficult_reply(rs);
EXIT;
}
* to attend to complete them. */
/* CAVEAT EMPTOR: spinlock ordering!!! */
- spin_lock(&exp->exp_uncommitted_replies_lock);
- list_for_each_entry_safe(rs, nxt, &exp->exp_uncommitted_replies,
- rs_obd_list) {
+ cfs_spin_lock(&exp->exp_uncommitted_replies_lock);
+ cfs_list_for_each_entry_safe(rs, nxt, &exp->exp_uncommitted_replies,
+ rs_obd_list) {
LASSERT (rs->rs_difficult);
/* VBR: per-export last_committed */
LASSERT(rs->rs_export);
if (rs->rs_transno <= exp->exp_last_committed) {
- list_del_init(&rs->rs_obd_list);
+ cfs_list_del_init(&rs->rs_obd_list);
rs_batch_add(&batch, rs);
}
}
- spin_unlock(&exp->exp_uncommitted_replies_lock);
+ cfs_spin_unlock(&exp->exp_uncommitted_replies_lock);
rs_batch_fini(&batch);
EXIT;
}
int posted = 0;
for (;;) {
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
- if (list_empty (&svc->srv_idle_rqbds)) {
- spin_unlock(&svc->srv_lock);
+ if (cfs_list_empty (&svc->srv_idle_rqbds)) {
+ cfs_spin_unlock(&svc->srv_lock);
return (posted);
}
- rqbd = list_entry(svc->srv_idle_rqbds.next,
- struct ptlrpc_request_buffer_desc,
- rqbd_list);
- list_del (&rqbd->rqbd_list);
+ rqbd = cfs_list_entry(svc->srv_idle_rqbds.next,
+ struct ptlrpc_request_buffer_desc,
+ rqbd_list);
+ cfs_list_del (&rqbd->rqbd_list);
/* assume we will post successfully */
svc->srv_nrqbd_receiving++;
- list_add (&rqbd->rqbd_list, &svc->srv_active_rqbds);
+ cfs_list_add (&rqbd->rqbd_list, &svc->srv_active_rqbds);
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
rc = ptlrpc_register_rqbd(rqbd);
if (rc != 0)
posted = 1;
}
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
svc->srv_nrqbd_receiving--;
- list_del(&rqbd->rqbd_list);
- list_add_tail(&rqbd->rqbd_list, &svc->srv_idle_rqbds);
+ cfs_list_del(&rqbd->rqbd_list);
+ cfs_list_add_tail(&rqbd->rqbd_list, &svc->srv_idle_rqbds);
/* Don't complain if no request buffers are posted right now; LNET
* won't drop requests because we set the portal lazy! */
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
return (-1);
}
/* First initialise enough for early teardown */
service->srv_name = name;
- spin_lock_init(&service->srv_lock);
+ cfs_spin_lock_init(&service->srv_lock);
CFS_INIT_LIST_HEAD(&service->srv_threads);
cfs_waitq_init(&service->srv_waitq);
#endif
CFS_INIT_LIST_HEAD(&service->srv_free_rs_list);
cfs_waitq_init(&service->srv_free_rs_waitq);
- atomic_set(&service->srv_n_difficult_replies, 0);
+ cfs_atomic_set(&service->srv_n_difficult_replies, 0);
- spin_lock_init(&service->srv_at_lock);
+ cfs_spin_lock_init(&service->srv_at_lock);
CFS_INIT_LIST_HEAD(&service->srv_req_in_queue);
array = &service->srv_at_array;
array->paa_deadline = -1;
/* allocate memory for srv_at_array (ptlrpc_at_array) */
- OBD_ALLOC(array->paa_reqs_array, sizeof(struct list_head) * size);
+ OBD_ALLOC(array->paa_reqs_array, sizeof(cfs_list_t) * size);
if (array->paa_reqs_array == NULL)
GOTO(failed, NULL);
timeout is less than this, we'll be sending an early reply. */
at_init(&service->srv_at_estimate, 10, 0);
- spin_lock (&ptlrpc_all_services_lock);
- list_add (&service->srv_list, &ptlrpc_all_services);
- spin_unlock (&ptlrpc_all_services_lock);
+ cfs_spin_lock (&ptlrpc_all_services_lock);
+ cfs_list_add (&service->srv_list, &ptlrpc_all_services);
+ cfs_spin_unlock (&ptlrpc_all_services_lock);
/* Now allocate the request buffers */
rc = ptlrpc_grow_req_bufs(service);
*/
static void ptlrpc_server_free_request(struct ptlrpc_request *req)
{
- LASSERT(atomic_read(&req->rq_refcount) == 0);
- LASSERT(list_empty(&req->rq_timed_list));
+ LASSERT(cfs_atomic_read(&req->rq_refcount) == 0);
+ LASSERT(cfs_list_empty(&req->rq_timed_list));
/* DEBUG_REQ() assumes the reply state of a request with a valid
* ref will not be destroyed until that reference is dropped. */
}
/**
+ * increment the number of active requests consuming service threads.
+ */
+void ptlrpc_server_active_request_inc(struct ptlrpc_request *req)
+{
+ struct ptlrpc_request_buffer_desc *rqbd = req->rq_rqbd;
+ struct ptlrpc_service *svc = rqbd->rqbd_service;
+
+ cfs_spin_lock(&svc->srv_lock);
+ svc->srv_n_active_reqs++;
+ cfs_spin_unlock(&svc->srv_lock);
+}
+
+/**
+ * decrement the number of active requests consuming service threads.
+ */
+void ptlrpc_server_active_request_dec(struct ptlrpc_request *req)
+{
+ struct ptlrpc_request_buffer_desc *rqbd = req->rq_rqbd;
+ struct ptlrpc_service *svc = rqbd->rqbd_service;
+
+ cfs_spin_lock(&svc->srv_lock);
+ svc->srv_n_active_reqs--;
+ cfs_spin_unlock(&svc->srv_lock);
+}
+
+/**
* drop a reference count of the request. if it reaches 0, we either
* put it into history list, or free it immediately.
*/
struct ptlrpc_request_buffer_desc *rqbd = req->rq_rqbd;
struct ptlrpc_service *svc = rqbd->rqbd_service;
int refcount;
- struct list_head *tmp;
- struct list_head *nxt;
+ cfs_list_t *tmp;
+ cfs_list_t *nxt;
- if (!atomic_dec_and_test(&req->rq_refcount))
+ if (!cfs_atomic_dec_and_test(&req->rq_refcount))
return;
- spin_lock(&svc->srv_at_lock);
+ cfs_spin_lock(&svc->srv_at_lock);
if (req->rq_at_linked) {
struct ptlrpc_at_array *array = &svc->srv_at_array;
__u32 index = req->rq_at_index;
- LASSERT(!list_empty(&req->rq_timed_list));
- list_del_init(&req->rq_timed_list);
+ LASSERT(!cfs_list_empty(&req->rq_timed_list));
+ cfs_list_del_init(&req->rq_timed_list);
+ cfs_spin_lock(&req->rq_lock);
req->rq_at_linked = 0;
+ cfs_spin_unlock(&req->rq_lock);
array->paa_reqs_count[index]--;
array->paa_count--;
} else
- LASSERT(list_empty(&req->rq_timed_list));
- spin_unlock(&svc->srv_at_lock);
+ LASSERT(cfs_list_empty(&req->rq_timed_list));
+ cfs_spin_unlock(&svc->srv_at_lock);
/* finalize request */
if (req->rq_export) {
req->rq_export = NULL;
}
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
svc->srv_n_active_reqs--;
- list_add(&req->rq_list, &rqbd->rqbd_reqs);
+ cfs_list_add(&req->rq_list, &rqbd->rqbd_reqs);
refcount = --(rqbd->rqbd_refcount);
if (refcount == 0) {
/* request buffer is now idle: add to history */
- list_del(&rqbd->rqbd_list);
- list_add_tail(&rqbd->rqbd_list, &svc->srv_history_rqbds);
+ cfs_list_del(&rqbd->rqbd_list);
+ cfs_list_add_tail(&rqbd->rqbd_list, &svc->srv_history_rqbds);
svc->srv_n_history_rqbds++;
/* cull some history?
* I expect only about 1 or 2 rqbds need to be recycled here */
while (svc->srv_n_history_rqbds > svc->srv_max_history_rqbds) {
- rqbd = list_entry(svc->srv_history_rqbds.next,
- struct ptlrpc_request_buffer_desc,
- rqbd_list);
+ rqbd = cfs_list_entry(svc->srv_history_rqbds.next,
+ struct ptlrpc_request_buffer_desc,
+ rqbd_list);
- list_del(&rqbd->rqbd_list);
+ cfs_list_del(&rqbd->rqbd_list);
svc->srv_n_history_rqbds--;
/* remove rqbd's reqs from svc's req history while
* I've got the service lock */
- list_for_each(tmp, &rqbd->rqbd_reqs) {
- req = list_entry(tmp, struct ptlrpc_request,
- rq_list);
+ cfs_list_for_each(tmp, &rqbd->rqbd_reqs) {
+ req = cfs_list_entry(tmp, struct ptlrpc_request,
+ rq_list);
/* Track the highest culled req seq */
if (req->rq_history_seq >
svc->srv_request_max_cull_seq)
svc->srv_request_max_cull_seq =
req->rq_history_seq;
- list_del(&req->rq_history_list);
+ cfs_list_del(&req->rq_history_list);
}
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
- list_for_each_safe(tmp, nxt, &rqbd->rqbd_reqs) {
- req = list_entry(rqbd->rqbd_reqs.next,
- struct ptlrpc_request,
- rq_list);
- list_del(&req->rq_list);
+ cfs_list_for_each_safe(tmp, nxt, &rqbd->rqbd_reqs) {
+ req = cfs_list_entry(rqbd->rqbd_reqs.next,
+ struct ptlrpc_request,
+ rq_list);
+ cfs_list_del(&req->rq_list);
ptlrpc_server_free_request(req);
}
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
/*
* now all reqs including the embedded req has been
* disposed, schedule request buffer for re-use.
*/
- LASSERT(atomic_read(&rqbd->rqbd_req.rq_refcount) == 0);
- list_add_tail(&rqbd->rqbd_list, &svc->srv_idle_rqbds);
+ LASSERT(cfs_atomic_read(&rqbd->rqbd_req.rq_refcount) ==
+ 0);
+ cfs_list_add_tail(&rqbd->rqbd_list,
+ &svc->srv_idle_rqbds);
}
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
} else if (req->rq_reply_state && req->rq_reply_state->rs_prealloc) {
/* If we are low on memory, we are not interested in history */
- list_del(&req->rq_list);
- list_del_init(&req->rq_history_list);
- spin_unlock(&svc->srv_lock);
+ cfs_list_del(&req->rq_list);
+ cfs_list_del_init(&req->rq_history_list);
+ cfs_spin_unlock(&svc->srv_lock);
ptlrpc_server_free_request(req);
} else {
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
}
}
/* exports may get disconnected from the chain even though the
export has references, so we must keep the spin lock while
manipulating the lists */
- spin_lock(&exp->exp_obd->obd_dev_lock);
+ cfs_spin_lock(&exp->exp_obd->obd_dev_lock);
- if (list_empty(&exp->exp_obd_chain_timed)) {
+ if (cfs_list_empty(&exp->exp_obd_chain_timed)) {
/* this one is not timed */
- spin_unlock(&exp->exp_obd->obd_dev_lock);
+ cfs_spin_unlock(&exp->exp_obd->obd_dev_lock);
RETURN_EXIT;
}
- list_move_tail(&exp->exp_obd_chain_timed,
- &exp->exp_obd->obd_exports_timed);
+ cfs_list_move_tail(&exp->exp_obd_chain_timed,
+ &exp->exp_obd->obd_exports_timed);
- oldest_exp = list_entry(exp->exp_obd->obd_exports_timed.next,
- struct obd_export, exp_obd_chain_timed);
+ oldest_exp = cfs_list_entry(exp->exp_obd->obd_exports_timed.next,
+ struct obd_export, exp_obd_chain_timed);
oldest_time = oldest_exp->exp_last_request_time;
- spin_unlock(&exp->exp_obd->obd_dev_lock);
+ cfs_spin_unlock(&exp->exp_obd->obd_dev_lock);
if (exp->exp_obd->obd_recovering) {
/* be nice to everyone during recovery */
struct ptlrpc_at_array *array = &svc->srv_at_array;
__s32 next;
- spin_lock(&svc->srv_at_lock);
+ cfs_spin_lock(&svc->srv_at_lock);
if (array->paa_count == 0) {
cfs_timer_disarm(&svc->srv_at_timer);
- spin_unlock(&svc->srv_at_lock);
+ cfs_spin_unlock(&svc->srv_at_lock);
return;
}
ptlrpc_at_timer((unsigned long)svc);
else
cfs_timer_arm(&svc->srv_at_timer, cfs_time_shift(next));
- spin_unlock(&svc->srv_at_lock);
+ cfs_spin_unlock(&svc->srv_at_lock);
CDEBUG(D_INFO, "armed %s at %+ds\n", svc->srv_name, next);
}
if ((lustre_msghdr_get_flags(req->rq_reqmsg) & MSGHDR_AT_SUPPORT) == 0)
return(-ENOSYS);
- spin_lock(&svc->srv_at_lock);
- LASSERT(list_empty(&req->rq_timed_list));
+ cfs_spin_lock(&svc->srv_at_lock);
+ LASSERT(cfs_list_empty(&req->rq_timed_list));
index = (unsigned long)req->rq_deadline % array->paa_size;
if (array->paa_reqs_count[index] > 0) {
/* latest rpcs will have the latest deadlines in the list,
* so search backward. */
- list_for_each_entry_reverse(rq, &array->paa_reqs_array[index],
- rq_timed_list) {
+ cfs_list_for_each_entry_reverse(rq,
+ &array->paa_reqs_array[index],
+ rq_timed_list) {
if (req->rq_deadline >= rq->rq_deadline) {
- list_add(&req->rq_timed_list,
- &rq->rq_timed_list);
+ cfs_list_add(&req->rq_timed_list,
+ &rq->rq_timed_list);
break;
}
}
}
/* Add the request at the head of the list */
- if (list_empty(&req->rq_timed_list))
- list_add(&req->rq_timed_list, &array->paa_reqs_array[index]);
+ if (cfs_list_empty(&req->rq_timed_list))
+ cfs_list_add(&req->rq_timed_list,
+ &array->paa_reqs_array[index]);
+ cfs_spin_lock(&req->rq_lock);
req->rq_at_linked = 1;
+ cfs_spin_unlock(&req->rq_lock);
req->rq_at_index = index;
array->paa_reqs_count[index]++;
array->paa_count++;
array->paa_deadline = req->rq_deadline;
found = 1;
}
- spin_unlock(&svc->srv_at_lock);
+ cfs_spin_unlock(&svc->srv_at_lock);
if (found)
ptlrpc_at_set_timer(svc);
if (req->rq_export &&
lustre_msg_get_flags(req->rq_reqmsg) &
(MSG_REPLAY | MSG_REQ_REPLAY_DONE | MSG_LOCK_REPLAY_DONE)) {
- /**
- * Use at_extra as early reply period for recovery requests but
- * make sure it is not bigger than recovery time / 4
- */
- at_add(&svc->srv_at_estimate,
- min(at_extra,
- req->rq_export->exp_obd->obd_recovery_timeout / 4));
+ /* During recovery, we don't want to send too many early
+ * replies, but on the other hand we want to make sure the
+ * client has enough time to resend if the rpc is lost. So
+ * during the recovery period send at least 4 early replies,
+ * spacing them every at_extra if we can. at_estimate should
+ * always equal this fixed value during recovery. */
+ at_measured(&svc->srv_at_estimate, min(at_extra,
+ req->rq_export->exp_obd->obd_recovery_timeout / 4));
} else {
/* Fake our processing time into the future to ask the clients
* for some extra amount of time */
- at_add(&svc->srv_at_estimate, at_extra);
+ at_measured(&svc->srv_at_estimate, at_extra +
+ cfs_time_current_sec() -
+ req->rq_arrival_time.tv_sec);
+
+ /* Check to see if we've actually increased the deadline -
+ * we may be past adaptive_max */
+ if (req->rq_deadline >= req->rq_arrival_time.tv_sec +
+ at_get(&svc->srv_at_estimate)) {
+ DEBUG_REQ(D_WARNING, req, "Couldn't add any time "
+ "(%ld/%ld), not sending early reply\n",
+ olddl, req->rq_arrival_time.tv_sec +
+ at_get(&svc->srv_at_estimate) -
+ cfs_time_current_sec());
+ RETURN(-ETIMEDOUT);
+ }
}
-
newdl = cfs_time_current_sec() + at_get(&svc->srv_at_estimate);
- if (req->rq_deadline >= newdl) {
- /* We're not adding any time, no need to send an early reply
- (e.g. maybe at adaptive_max) */
- DEBUG_REQ(D_WARNING, req, "Couldn't add any time ("
- CFS_DURATION_T"/"CFS_DURATION_T"), "
- "not sending early reply\n", olddl,
- cfs_time_sub(newdl, cfs_time_current_sec()));
- RETURN(-ETIMEDOUT);
- }
OBD_ALLOC(reqcopy, sizeof *reqcopy);
if (reqcopy == NULL)
reqcopy->rq_reqmsg = reqmsg;
memcpy(reqmsg, req->rq_reqmsg, req->rq_reqlen);
- LASSERT(atomic_read(&req->rq_refcount));
+ LASSERT(cfs_atomic_read(&req->rq_refcount));
/** if it is last refcount then early reply isn't needed */
- if (atomic_read(&req->rq_refcount) == 1) {
+ if (cfs_atomic_read(&req->rq_refcount) == 1) {
DEBUG_REQ(D_ADAPTTO, reqcopy, "Normal reply already sent out, "
"abort sending early reply\n");
GOTO(out, rc = -EINVAL);
static int ptlrpc_at_check_timed(struct ptlrpc_service *svc)
{
struct ptlrpc_request *rq, *n;
- struct list_head work_list;
+ cfs_list_t work_list;
struct ptlrpc_at_array *array = &svc->srv_at_array;
__u32 index, count;
time_t deadline;
int first, counter = 0;
ENTRY;
- spin_lock(&svc->srv_at_lock);
+ cfs_spin_lock(&svc->srv_at_lock);
if (svc->srv_at_check == 0) {
- spin_unlock(&svc->srv_at_lock);
+ cfs_spin_unlock(&svc->srv_at_lock);
RETURN(0);
}
delay = cfs_time_sub(cfs_time_current(), svc->srv_at_checktime);
svc->srv_at_check = 0;
if (array->paa_count == 0) {
- spin_unlock(&svc->srv_at_lock);
+ cfs_spin_unlock(&svc->srv_at_lock);
RETURN(0);
}
first = array->paa_deadline - now;
if (first > at_early_margin) {
/* We've still got plenty of time. Reset the timer. */
- spin_unlock(&svc->srv_at_lock);
+ cfs_spin_unlock(&svc->srv_at_lock);
ptlrpc_at_set_timer(svc);
RETURN(0);
}
count = array->paa_count;
while (count > 0) {
count -= array->paa_reqs_count[index];
- list_for_each_entry_safe(rq, n, &array->paa_reqs_array[index],
- rq_timed_list) {
+ cfs_list_for_each_entry_safe(rq, n,
+ &array->paa_reqs_array[index],
+ rq_timed_list) {
if (rq->rq_deadline <= now + at_early_margin) {
- list_del_init(&rq->rq_timed_list);
+ cfs_list_del_init(&rq->rq_timed_list);
/**
* ptlrpc_server_drop_request() may drop
* refcount to 0 already. Let's check this and
* don't add entry to work_list
*/
- if (likely(atomic_inc_not_zero(&rq->rq_refcount)))
- list_add(&rq->rq_timed_list, &work_list);
+ if (likely(cfs_atomic_inc_not_zero(&rq->rq_refcount)))
+ cfs_list_add(&rq->rq_timed_list, &work_list);
counter++;
array->paa_reqs_count[index]--;
array->paa_count--;
+ cfs_spin_lock(&rq->rq_lock);
rq->rq_at_linked = 0;
+ cfs_spin_unlock(&rq->rq_lock);
continue;
}
index = 0;
}
array->paa_deadline = deadline;
- spin_unlock(&svc->srv_at_lock);
+ cfs_spin_unlock(&svc->srv_at_lock);
/* we have a new earliest deadline, restart the timer */
ptlrpc_at_set_timer(svc);
/* we took additional refcount so entries can't be deleted from list, no
* locking is needed */
- while (!list_empty(&work_list)) {
- rq = list_entry(work_list.next, struct ptlrpc_request,
- rq_timed_list);
- list_del_init(&rq->rq_timed_list);
+ while (!cfs_list_empty(&work_list)) {
+ rq = cfs_list_entry(work_list.next, struct ptlrpc_request,
+ rq_timed_list);
+ cfs_list_del_init(&rq->rq_timed_list);
if (ptlrpc_at_send_early_reply(rq) == 0)
ptlrpc_at_add_timed(rq);
RETURN(rc);
}
if (req->rq_export && req->rq_ops) {
- spin_lock(&req->rq_export->exp_lock);
- list_add(&req->rq_exp_list, &req->rq_export->exp_queued_rpc);
- spin_unlock(&req->rq_export->exp_lock);
+ cfs_spin_lock(&req->rq_export->exp_lock);
+ cfs_list_add(&req->rq_exp_list,
+ &req->rq_export->exp_queued_rpc);
+ cfs_spin_unlock(&req->rq_export->exp_lock);
}
RETURN(0);
{
ENTRY;
if (req->rq_export && req->rq_ops) {
- spin_lock(&req->rq_export->exp_lock);
- list_del_init(&req->rq_exp_list);
- spin_unlock(&req->rq_export->exp_lock);
+ cfs_spin_lock(&req->rq_export->exp_lock);
+ cfs_list_del_init(&req->rq_exp_list);
+ cfs_spin_unlock(&req->rq_export->exp_lock);
}
EXIT;
}
{
ENTRY;
LASSERT(svc != NULL);
- spin_lock(&req->rq_lock);
+ cfs_spin_lock(&req->rq_lock);
if (req->rq_hp == 0) {
int opc = lustre_msg_get_opc(req->rq_reqmsg);
/* Add to the high priority queue. */
- list_move_tail(&req->rq_list, &svc->srv_request_hpq);
+ cfs_list_move_tail(&req->rq_list, &svc->srv_request_hpq);
req->rq_hp = 1;
if (opc != OBD_PING)
DEBUG_REQ(D_NET, req, "high priority req");
}
- spin_unlock(&req->rq_lock);
+ cfs_spin_unlock(&req->rq_lock);
EXIT;
}
struct ptlrpc_service *svc = req->rq_rqbd->rqbd_service;
ENTRY;
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
/* It may happen that the request is already taken for the processing
* but still in the export list, do not re-add it into the HP list. */
if (req->rq_phase == RQ_PHASE_NEW)
ptlrpc_hpreq_reorder_nolock(svc, req);
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
EXIT;
}
if (rc < 0)
RETURN(rc);
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
/* Before inserting the request into the queue, check if it is not
* inserted yet, or even already handled -- it may happen due to
* a racing ldlm_server_blocking_ast(). */
- if (req->rq_phase == RQ_PHASE_NEW && list_empty(&req->rq_list)) {
+ if (req->rq_phase == RQ_PHASE_NEW && cfs_list_empty(&req->rq_list)) {
if (rc)
ptlrpc_hpreq_reorder_nolock(svc, req);
else
- list_add_tail(&req->rq_list, &svc->srv_request_queue);
+ cfs_list_add_tail(&req->rq_list,
+ &svc->srv_request_queue);
}
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
RETURN(0);
}
static int ptlrpc_server_allow_normal(struct ptlrpc_service *svc, int force)
{
return force || !svc->srv_hpreq_handler || svc->srv_n_hpreq > 0 ||
- svc->srv_n_active_reqs < svc->srv_threads_running - 2;
+ svc->srv_threads_running < svc->srv_threads_started - 2;
}
static struct ptlrpc_request *
-ptlrpc_server_request_get(struct ptlrpc_service *svc, int force)
+ptlrpc_server_request_get(struct ptlrpc_service *svc)
{
struct ptlrpc_request *req = NULL;
ENTRY;
- if (ptlrpc_server_allow_normal(svc, force) &&
- !list_empty(&svc->srv_request_queue) &&
- (list_empty(&svc->srv_request_hpq) ||
+ if (!cfs_list_empty(&svc->srv_request_queue) &&
+ (cfs_list_empty(&svc->srv_request_hpq) ||
svc->srv_hpreq_count >= svc->srv_hpreq_ratio)) {
- req = list_entry(svc->srv_request_queue.next,
- struct ptlrpc_request, rq_list);
+ req = cfs_list_entry(svc->srv_request_queue.next,
+ struct ptlrpc_request, rq_list);
svc->srv_hpreq_count = 0;
- } else if (!list_empty(&svc->srv_request_hpq)) {
- req = list_entry(svc->srv_request_hpq.next,
- struct ptlrpc_request, rq_list);
+ } else if (!cfs_list_empty(&svc->srv_request_hpq)) {
+ req = cfs_list_entry(svc->srv_request_hpq.next,
+ struct ptlrpc_request, rq_list);
svc->srv_hpreq_count++;
}
RETURN(req);
static int ptlrpc_server_request_pending(struct ptlrpc_service *svc, int force)
{
return ((ptlrpc_server_allow_normal(svc, force) &&
- !list_empty(&svc->srv_request_queue)) ||
- !list_empty(&svc->srv_request_hpq));
+ !cfs_list_empty(&svc->srv_request_queue)) ||
+ !cfs_list_empty(&svc->srv_request_hpq));
}
/* Handle freshly incoming reqs, add to timed early reply list,
LASSERT(svc);
- spin_lock(&svc->srv_lock);
- if (list_empty(&svc->srv_req_in_queue)) {
- spin_unlock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
+ if (cfs_list_empty(&svc->srv_req_in_queue)) {
+ cfs_spin_unlock(&svc->srv_lock);
RETURN(0);
}
- req = list_entry(svc->srv_req_in_queue.next,
- struct ptlrpc_request, rq_list);
- list_del_init (&req->rq_list);
+ req = cfs_list_entry(svc->srv_req_in_queue.next,
+ struct ptlrpc_request, rq_list);
+ cfs_list_del_init (&req->rq_list);
/* Consider this still a "queued" request as far as stats are
concerned */
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
/* go through security check/transform */
rc = sptlrpc_svc_unwrap_request(req);
RETURN(1);
err_req:
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
svc->srv_n_queued_reqs--;
svc->srv_n_active_reqs++;
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
ptlrpc_server_finish_request(req);
RETURN(1);
LASSERT(svc);
- spin_lock(&svc->srv_lock);
- if (unlikely(!ptlrpc_server_request_pending(svc, 0) ||
- (
+ cfs_spin_lock(&svc->srv_lock);
#ifndef __KERNEL__
- /* !@%$# liblustre only has 1 thread */
- atomic_read(&svc->srv_n_difficult_replies) != 0 &&
-#endif
- svc->srv_n_active_reqs >= (svc->srv_threads_running - 1)))) {
- /* Don't handle regular requests in the last thread, in order * re
- * to handle difficult replies (which might block other threads)
- * as well as handle any incoming reqs, early replies, etc.
- * That means we always need at least 2 service threads. */
- spin_unlock(&svc->srv_lock);
+ /* !@%$# liblustre only has 1 thread */
+ if (cfs_atomic_read(&svc->srv_n_difficult_replies) != 0) {
+ cfs_spin_unlock(&svc->srv_lock);
RETURN(0);
- }
-
- request = ptlrpc_server_request_get(svc, 0);
+ }
+#endif
+ request = ptlrpc_server_request_get(svc);
if (request == NULL) {
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
RETURN(0);
}
if (unlikely(fail_opc)) {
if (request->rq_export && request->rq_ops) {
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
OBD_FAIL_TIMEOUT(fail_opc, 4);
- spin_lock(&svc->srv_lock);
- request = ptlrpc_server_request_get(svc, 0);
+ cfs_spin_lock(&svc->srv_lock);
+ request = ptlrpc_server_request_get(svc);
if (request == NULL) {
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
RETURN(0);
}
- LASSERT(ptlrpc_server_request_pending(svc, 0));
}
}
- list_del_init(&request->rq_list);
+ cfs_list_del_init(&request->rq_list);
svc->srv_n_queued_reqs--;
svc->srv_n_active_reqs++;
if (request->rq_hp)
/* The phase is changed under the lock here because we need to know
* the request is under processing (see ptlrpc_hpreq_reorder()). */
ptlrpc_rqphase_move(request, RQ_PHASE_INTERPRET);
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
ptlrpc_hpreq_fini(request);
if(OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_DUMP_LOG))
libcfs_debug_dumplog();
- do_gettimeofday(&work_start);
+ cfs_gettimeofday(&work_start);
timediff = cfs_timeval_sub(&work_start, &request->rq_arrival_time,NULL);
if (likely(svc->srv_stats != NULL)) {
lprocfs_counter_add(svc->srv_stats, PTLRPC_REQWAIT_CNTR,
(request->rq_export ?
(char *)request->rq_export->exp_client_uuid.uuid : "0"),
(request->rq_export ?
- atomic_read(&request->rq_export->exp_refcount) : -99),
+ cfs_atomic_read(&request->rq_export->exp_refcount) : -99),
lustre_msg_get_status(request->rq_reqmsg), request->rq_xid,
libcfs_id2str(request->rq_peer),
lustre_msg_get_opc(request->rq_reqmsg));
request->rq_deadline));
}
- do_gettimeofday(&work_end);
+ cfs_gettimeofday(&work_end);
timediff = cfs_timeval_sub(&work_end, &work_start, NULL);
CDEBUG(D_RPCTRACE, "Handled RPC pname:cluuid+ref:pid:xid:nid:opc "
"%s:%s+%d:%d:x"LPU64":%s:%d Request procesed in "
- "%lds (%lds total) trans "LPU64" rc %d/%d\n",
+ "%ldus (%ldus total) trans "LPU64" rc %d/%d\n",
cfs_curproc_comm(),
(request->rq_export ?
(char *)request->rq_export->exp_client_uuid.uuid : "0"),
(request->rq_export ?
- atomic_read(&request->rq_export->exp_refcount) : -99),
+ cfs_atomic_read(&request->rq_export->exp_refcount) : -99),
lustre_msg_get_status(request->rq_reqmsg),
request->rq_xid,
libcfs_id2str(request->rq_peer),
}
out_req:
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
if (request->rq_hp)
svc->srv_n_hpreq--;
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
ptlrpc_server_finish_request(request);
RETURN(1);
LASSERT (rs->rs_difficult);
LASSERT (rs->rs_scheduled);
- LASSERT (list_empty(&rs->rs_list));
+ LASSERT (cfs_list_empty(&rs->rs_list));
- spin_lock (&exp->exp_lock);
+ cfs_spin_lock (&exp->exp_lock);
/* Noop if removed already */
- list_del_init (&rs->rs_exp_list);
- spin_unlock (&exp->exp_lock);
+ cfs_list_del_init (&rs->rs_exp_list);
+ cfs_spin_unlock (&exp->exp_lock);
/* The disk commit callback holds exp_uncommitted_replies_lock while it
* iterates over newly committed replies, removing them from
* HRT threads and further commit callbacks by checking rs_committed
* which is set in the commit callback while it holds both
* rs_lock and exp_uncommitted_reples.
- *
+ *
* If we see rs_committed clear, the commit callback _may_ not have
* handled this reply yet and we race with it to grab
* exp_uncommitted_replies_lock before removing the reply from
* rs_lock, which we do right next.
*/
if (!rs->rs_committed) {
- spin_lock(&exp->exp_uncommitted_replies_lock);
- list_del_init(&rs->rs_obd_list);
- spin_unlock(&exp->exp_uncommitted_replies_lock);
+ cfs_spin_lock(&exp->exp_uncommitted_replies_lock);
+ cfs_list_del_init(&rs->rs_obd_list);
+ cfs_spin_unlock(&exp->exp_uncommitted_replies_lock);
}
- spin_lock(&rs->rs_lock);
+ cfs_spin_lock(&rs->rs_lock);
been_handled = rs->rs_handled;
rs->rs_handled = 1;
}
if ((!been_handled && rs->rs_on_net) || nlocks > 0) {
- spin_unlock(&rs->rs_lock);
+ cfs_spin_unlock(&rs->rs_lock);
if (!been_handled && rs->rs_on_net) {
LNetMDUnlink(rs->rs_md_h);
ldlm_lock_decref(&rs->rs_locks[nlocks],
rs->rs_modes[nlocks]);
- spin_lock(&rs->rs_lock);
+ cfs_spin_lock(&rs->rs_lock);
}
rs->rs_scheduled = 0;
if (!rs->rs_on_net) {
/* Off the net */
- spin_unlock(&rs->rs_lock);
+ cfs_spin_unlock(&rs->rs_lock);
class_export_put (exp);
rs->rs_export = NULL;
ptlrpc_rs_decref (rs);
- atomic_dec (&svc->srv_outstanding_replies);
- if (atomic_dec_and_test(&svc->srv_n_difficult_replies) &&
+ cfs_atomic_dec (&svc->srv_outstanding_replies);
+ if (cfs_atomic_dec_and_test(&svc->srv_n_difficult_replies) &&
svc->srv_is_stopping)
cfs_waitq_broadcast(&svc->srv_waitq);
RETURN(1);
}
/* still on the net; callback will schedule */
- spin_unlock(&rs->rs_lock);
+ cfs_spin_unlock(&rs->rs_lock);
RETURN(1);
}
struct ptlrpc_reply_state *rs = NULL;
ENTRY;
- spin_lock(&svc->srv_lock);
- if (!list_empty(&svc->srv_reply_queue)) {
- rs = list_entry(svc->srv_reply_queue.prev,
- struct ptlrpc_reply_state,
- rs_list);
- list_del_init(&rs->rs_list);
+ cfs_spin_lock(&svc->srv_lock);
+ if (!cfs_list_empty(&svc->srv_reply_queue)) {
+ rs = cfs_list_entry(svc->srv_reply_queue.prev,
+ struct ptlrpc_reply_state,
+ rs_list);
+ cfs_list_del_init(&rs->rs_list);
}
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
if (rs != NULL)
ptlrpc_handle_rs(rs);
RETURN(rs != NULL);
{
int did_something = 0;
int rc;
- struct list_head *tmp, *nxt;
+ cfs_list_t *tmp, *nxt;
ENTRY;
/* I'm relying on being single threaded, not to have to lock
* ptlrpc_all_services etc */
- list_for_each_safe (tmp, nxt, &ptlrpc_all_services) {
+ cfs_list_for_each_safe (tmp, nxt, &ptlrpc_all_services) {
struct ptlrpc_service *svc =
- list_entry (tmp, struct ptlrpc_service, srv_list);
+ cfs_list_entry (tmp, struct ptlrpc_service, srv_list);
if (svc->srv_threads_running != 0) /* I've recursed */
continue;
return (-ETIMEDOUT);
}
+/**
+ * Status bits to pass todo info from
+ * ptlrpc_main_check_event to ptlrpc_main.
+ */
+#define PTLRPC_MAIN_STOPPING 0x01
+#define PTLRPC_MAIN_IN_REQ 0x02
+#define PTLRPC_MAIN_ACTIVE_REQ 0x04
+#define PTLRPC_MAIN_CHECK_TIMED 0x08
+#define PTLRPC_MAIN_REPOST 0x10
+
+/**
+ * A container to share per-thread status variables between
+ * ptlrpc_main_check_event and ptlrpc_main functions.
+ */
+struct ptlrpc_main_check_s {
+ /** todo info for the ptrlrpc_main */
+ int todo;
+ /** is this thread counted as running or not? */
+ int running;
+};
+
+/**
+ * Check whether current service thread has work to do.
+ */
+static int ptlrpc_main_check_event(struct ptlrpc_thread *t,
+ struct ptlrpc_main_check_s *status)
+{
+ struct ptlrpc_service *svc = t->t_svc;
+ ENTRY;
+
+ status->todo = 0;
+
+ /* check the stop flags w/o any locking to make all
+ * concurrently running threads stop faster. */
+ if (unlikely((t->t_flags & SVC_STOPPING) ||
+ svc->srv_is_stopping)) {
+ status->todo |= PTLRPC_MAIN_STOPPING;
+ goto out;
+ }
+
+ cfs_spin_lock(&svc->srv_lock);
+ /* count this thread as not running before possible sleep in
+ * the outer wait event if it is not done yet. */
+ if (status->running) {
+ LASSERT(svc->srv_threads_running > 0);
+ svc->srv_threads_running--;
+ status->running = 0;
+ }
+ /* Process all incoming reqs before handling any */
+ if (!cfs_list_empty(&svc->srv_req_in_queue)) {
+ status->todo |= PTLRPC_MAIN_IN_REQ;
+ }
+ /* Don't handle regular requests in the last thread, in order
+ * to handle any incoming reqs, early replies, etc. */
+ if (ptlrpc_server_request_pending(svc, 0) &&
+ (svc->srv_threads_running < (svc->srv_threads_started - 1))) {
+ status->todo |= PTLRPC_MAIN_ACTIVE_REQ;
+ }
+ if (svc->srv_at_check) {
+ status->todo |= PTLRPC_MAIN_CHECK_TIMED;
+ }
+ if ((!cfs_list_empty(&svc->srv_idle_rqbds) &&
+ svc->srv_rqbd_timeout == 0)) {
+ status->todo |= PTLRPC_MAIN_REPOST;
+ }
+ /* count this thread as active if it goes out the outer
+ * wait event */
+ if (status->todo) {
+ svc->srv_threads_running++;
+ status->running = 1;
+ }
+ cfs_spin_unlock(&svc->srv_lock);
+ out:
+ RETURN(status->todo);
+}
+
+/**
+ * Main prlrpc service thread routine.
+ */
static int ptlrpc_main(void *arg)
{
struct ptlrpc_svc_data *data = (struct ptlrpc_svc_data *)arg;
struct ptlrpc_thread *thread = data->thread;
struct obd_device *dev = data->dev;
struct ptlrpc_reply_state *rs;
+ struct ptlrpc_main_check_s st;
#ifdef WITH_GROUP_INFO
- struct group_info *ginfo = NULL;
+ cfs_group_info_t *ginfo = NULL;
#endif
struct lu_env env;
int counter = 0, rc = 0;
if (svc->srv_cpu_affinity) {
int cpu, num_cpu;
- for (cpu = 0, num_cpu = 0; cpu < num_possible_cpus(); cpu++) {
- if (!cpu_online(cpu))
+ for (cpu = 0, num_cpu = 0; cpu < cfs_num_possible_cpus();
+ cpu++) {
+ if (!cfs_cpu_online(cpu))
continue;
- if (num_cpu == thread->t_id % num_online_cpus())
+ if (num_cpu == thread->t_id % cfs_num_online_cpus())
break;
num_cpu++;
}
- set_cpus_allowed(cfs_current(), node_to_cpumask(cpu_to_node(cpu)));
+ cfs_set_cpus_allowed(cfs_current(),
+ node_to_cpumask(cpu_to_node(cpu)));
}
#endif
#ifdef WITH_GROUP_INFO
- ginfo = groups_alloc(0);
+ ginfo = cfs_groups_alloc(0);
if (!ginfo) {
rc = -ENOMEM;
goto out;
}
- set_current_groups(ginfo);
- put_group_info(ginfo);
+ cfs_set_current_groups(ginfo);
+ cfs_put_group_info(ginfo);
#endif
if (svc->srv_init != NULL) {
goto out_srv_fini;
}
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
/* SVC_STOPPING may already be set here if someone else is trying
* to stop the service while this new thread has been dynamically
* forked. We still set SVC_RUNNING to let our creator know that
* we are now running, however we will exit as soon as possible */
thread->t_flags |= SVC_RUNNING;
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
/*
* wake up our creator. Note: @data is invalid after this point,
*/
cfs_waitq_signal(&thread->t_ctl_waitq);
- thread->t_watchdog = lc_watchdog_add(GET_TIMEOUT(svc), NULL, NULL);
+ thread->t_watchdog = lc_watchdog_add(CFS_GET_TIMEOUT(svc), NULL, NULL);
- spin_lock(&svc->srv_lock);
- svc->srv_threads_running++;
- list_add(&rs->rs_list, &svc->srv_free_rs_list);
- spin_unlock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
+ cfs_list_add(&rs->rs_list, &svc->srv_free_rs_list);
+ cfs_spin_unlock(&svc->srv_lock);
cfs_waitq_signal(&svc->srv_free_rs_waitq);
CDEBUG(D_NET, "service thread %d (#%d) started\n", thread->t_id,
/* XXX maintain a list of all managed devices: insert here */
- while (!(thread->t_flags & SVC_STOPPING) && !svc->srv_is_stopping) {
+ st.running = 0;
+ st.todo = 0;
+
+ while (!(st.todo & PTLRPC_MAIN_STOPPING)) {
/* Don't exit while there are replies to be handled */
struct l_wait_info lwi = LWI_TIMEOUT(svc->srv_rqbd_timeout,
ptlrpc_retry_rqbds, svc);
lc_watchdog_disable(thread->t_watchdog);
- cond_resched();
+ cfs_cond_resched();
l_wait_event_exclusive (svc->srv_waitq,
- thread->t_flags & SVC_STOPPING ||
- svc->srv_is_stopping ||
- (!list_empty(&svc->srv_idle_rqbds) &&
- svc->srv_rqbd_timeout == 0) ||
- !list_empty(&svc->srv_req_in_queue) ||
- (ptlrpc_server_request_pending(svc, 0) &&
- (svc->srv_n_active_reqs <
- (svc->srv_threads_running - 1))) ||
- svc->srv_at_check,
- &lwi);
-
- if (thread->t_flags & SVC_STOPPING || svc->srv_is_stopping)
- break;
+ ptlrpc_main_check_event(thread, &st),
+ &lwi);
- lc_watchdog_touch(thread->t_watchdog, GET_TIMEOUT(svc));
+ lc_watchdog_touch(thread->t_watchdog, CFS_GET_TIMEOUT(svc));
ptlrpc_check_rqbd_pool(svc);
/* Ignore return code - we tried... */
ptlrpc_start_thread(dev, svc);
- if (!list_empty(&svc->srv_req_in_queue)) {
- /* Process all incoming reqs before handling any */
+ if (st.todo & PTLRPC_MAIN_IN_REQ) {
ptlrpc_server_handle_req_in(svc);
/* but limit ourselves in case of flood */
if (counter++ < 1000)
continue;
counter = 0;
}
-
- if (svc->srv_at_check)
+ if (st.todo & PTLRPC_MAIN_CHECK_TIMED) {
ptlrpc_at_check_timed(svc);
-
- /* don't handle requests in the last thread */
- if (ptlrpc_server_request_pending(svc, 0) &&
- (svc->srv_n_active_reqs < (svc->srv_threads_running - 1))) {
+ }
+ if (st.todo & PTLRPC_MAIN_ACTIVE_REQ) {
lu_context_enter(&env.le_ctx);
ptlrpc_server_handle_request(svc, thread);
lu_context_exit(&env.le_ctx);
}
-
- if (!list_empty(&svc->srv_idle_rqbds) &&
+ if ((st.todo & PTLRPC_MAIN_REPOST) &&
ptlrpc_server_post_idle_rqbds(svc) < 0) {
- /* I just failed to repost request buffers. Wait
- * for a timeout (unless something else happens)
- * before I try again */
+ /* I just failed to repost request buffers.
+ * Wait for a timeout (unless something else
+ * happens) before I try again */
svc->srv_rqbd_timeout = cfs_time_seconds(1)/10;
CDEBUG(D_RPCTRACE,"Posted buffers: %d\n",
svc->srv_nrqbd_receiving);
CDEBUG(D_RPCTRACE, "service thread [ %p : %u ] %d exiting: rc %d\n",
thread, thread->t_pid, thread->t_id, rc);
- spin_lock(&svc->srv_lock);
- svc->srv_threads_running--; /* must know immediately */
+ cfs_spin_lock(&svc->srv_lock);
+ if (st.running)
+ svc->srv_threads_running--;
thread->t_id = rc;
thread->t_flags = SVC_STOPPED;
-
cfs_waitq_signal(&thread->t_ctl_waitq);
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
return rc;
}
};
static int hrt_dont_sleep(struct ptlrpc_hr_thread *t,
- struct list_head *replies)
+ cfs_list_t *replies)
{
int result;
- spin_lock(&t->hrt_lock);
- list_splice_init(&t->hrt_queue, replies);
- result = test_bit(HRT_STOPPING, &t->hrt_flags) ||
- !list_empty(replies);
- spin_unlock(&t->hrt_lock);
+ cfs_spin_lock(&t->hrt_lock);
+ cfs_list_splice_init(&t->hrt_queue, replies);
+ result = cfs_test_bit(HRT_STOPPING, &t->hrt_flags) ||
+ !cfs_list_empty(replies);
+ cfs_spin_unlock(&t->hrt_lock);
return result;
}
cfs_daemonize_ctxt(threadname);
#if defined(CONFIG_SMP) && defined(HAVE_NODE_TO_CPUMASK)
- set_cpus_allowed(cfs_current(),
- node_to_cpumask(cpu_to_node(hr_args->cpu_index)));
+ cfs_set_cpus_allowed(cfs_current(),
+ node_to_cpumask(cpu_to_node(hr_args->cpu_index)));
#endif
- set_bit(HRT_RUNNING, &t->hrt_flags);
+ cfs_set_bit(HRT_RUNNING, &t->hrt_flags);
cfs_waitq_signal(&t->hrt_wait);
- while (!test_bit(HRT_STOPPING, &t->hrt_flags)) {
+ while (!cfs_test_bit(HRT_STOPPING, &t->hrt_flags)) {
- cfs_wait_event(t->hrt_wait, hrt_dont_sleep(t, &replies));
- while (!list_empty(&replies)) {
+ l_cfs_wait_event(t->hrt_wait, hrt_dont_sleep(t, &replies));
+ while (!cfs_list_empty(&replies)) {
struct ptlrpc_reply_state *rs;
- rs = list_entry(replies.prev,
- struct ptlrpc_reply_state,
- rs_list);
- list_del_init(&rs->rs_list);
+ rs = cfs_list_entry(replies.prev,
+ struct ptlrpc_reply_state,
+ rs_list);
+ cfs_list_del_init(&rs->rs_list);
ptlrpc_handle_rs(rs);
}
}
- clear_bit(HRT_RUNNING, &t->hrt_flags);
- complete(&t->hrt_completion);
+ cfs_clear_bit(HRT_RUNNING, &t->hrt_flags);
+ cfs_complete(&t->hrt_completion);
return 0;
}
rc = cfs_kernel_thread(ptlrpc_hr_main, (void*)&args,
CLONE_VM|CLONE_FILES);
if (rc < 0) {
- complete(&t->hrt_completion);
+ cfs_complete(&t->hrt_completion);
GOTO(out, rc);
}
- cfs_wait_event(t->hrt_wait, test_bit(HRT_RUNNING, &t->hrt_flags));
+ l_cfs_wait_event(t->hrt_wait, cfs_test_bit(HRT_RUNNING, &t->hrt_flags));
RETURN(0);
out:
return rc;
{
ENTRY;
- set_bit(HRT_STOPPING, &t->hrt_flags);
+ cfs_set_bit(HRT_STOPPING, &t->hrt_flags);
cfs_waitq_signal(&t->hrt_wait);
- wait_for_completion(&t->hrt_completion);
+ cfs_wait_for_completion(&t->hrt_completion);
EXIT;
}
for (n = 0, cpu = 0; n < hr->hr_n_threads; n++) {
#if defined(CONFIG_SMP) && defined(HAVE_NODE_TO_CPUMASK)
- while(!cpu_online(cpu)) {
+ while(!cfs_cpu_online(cpu)) {
cpu++;
- if (cpu >= num_possible_cpus())
+ if (cpu >= cfs_num_possible_cpus())
cpu = 0;
}
#endif
CDEBUG(D_RPCTRACE, "Stopping thread [ %p : %u ]\n",
thread, thread->t_pid);
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
/* let the thread know that we would like it to stop asap */
thread->t_flags |= SVC_STOPPING;
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
cfs_waitq_broadcast(&svc->srv_waitq);
l_wait_event(thread->t_ctl_waitq,
(thread->t_flags & SVC_STOPPED), &lwi);
- spin_lock(&svc->srv_lock);
- list_del(&thread->t_link);
- spin_unlock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
+ cfs_list_del(&thread->t_link);
+ cfs_spin_unlock(&svc->srv_lock);
OBD_FREE_PTR(thread);
EXIT;
struct ptlrpc_thread *thread;
ENTRY;
- spin_lock(&svc->srv_lock);
- while (!list_empty(&svc->srv_threads)) {
- thread = list_entry(svc->srv_threads.next,
- struct ptlrpc_thread, t_link);
+ cfs_spin_lock(&svc->srv_lock);
+ while (!cfs_list_empty(&svc->srv_threads)) {
+ thread = cfs_list_entry(svc->srv_threads.next,
+ struct ptlrpc_thread, t_link);
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
ptlrpc_stop_thread(svc, thread);
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
}
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
EXIT;
}
RETURN(-ENOMEM);
cfs_waitq_init(&thread->t_ctl_waitq);
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
if (svc->srv_threads_started >= svc->srv_threads_max) {
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
OBD_FREE_PTR(thread);
RETURN(-EMFILE);
}
- list_add(&thread->t_link, &svc->srv_threads);
+ cfs_list_add(&thread->t_link, &svc->srv_threads);
id = svc->srv_threads_started++;
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
thread->t_svc = svc;
thread->t_id = id;
if (rc < 0) {
CERROR("cannot start thread '%s': rc %d\n", name, rc);
- spin_lock(&svc->srv_lock);
- list_del(&thread->t_link);
+ cfs_spin_lock(&svc->srv_lock);
+ cfs_list_del(&thread->t_link);
--svc->srv_threads_started;
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
OBD_FREE(thread, sizeof(*thread));
RETURN(rc);
int ptlrpc_hr_init(void)
{
int i;
- int n_cpus = num_online_cpus();
+ int n_cpus = cfs_num_online_cpus();
struct ptlrpc_hr_service *hr;
int size;
int rc;
for (i = 0; i < n_cpus; i++) {
struct ptlrpc_hr_thread *t = &hr->hr_threads[i];
- spin_lock_init(&t->hrt_lock);
+ cfs_spin_lock_init(&t->hrt_lock);
cfs_waitq_init(&t->hrt_wait);
CFS_INIT_LIST_HEAD(&t->hrt_queue);
- init_completion(&t->hrt_completion);
+ cfs_init_completion(&t->hrt_completion);
}
hr->hr_n_threads = n_cpus;
hr->hr_size = size;
int rc;
struct l_wait_info lwi = LWI_TIMEOUT(cfs_time_seconds(10),
NULL, NULL);
- rc = l_wait_event(svc->srv_waitq,
- atomic_read(&svc->srv_n_difficult_replies) == 0,
+ rc = l_wait_event(svc->srv_waitq, cfs_atomic_read(&svc-> \
+ srv_n_difficult_replies) == 0,
&lwi);
if (rc == 0)
break;
{
int rc;
struct l_wait_info lwi;
- struct list_head *tmp;
+ cfs_list_t *tmp;
struct ptlrpc_reply_state *rs, *t;
struct ptlrpc_at_array *array = &service->srv_at_array;
ENTRY;
cfs_timer_disarm(&service->srv_at_timer);
ptlrpc_stop_all_threads(service);
- LASSERT(list_empty(&service->srv_threads));
+ LASSERT(cfs_list_empty(&service->srv_threads));
- spin_lock (&ptlrpc_all_services_lock);
- list_del_init (&service->srv_list);
- spin_unlock (&ptlrpc_all_services_lock);
+ cfs_spin_lock (&ptlrpc_all_services_lock);
+ cfs_list_del_init (&service->srv_list);
+ cfs_spin_unlock (&ptlrpc_all_services_lock);
ptlrpc_lprocfs_unregister_service(service);
/* Unlink all the request buffers. This forces a 'final' event with
* its 'unlink' flag set for each posted rqbd */
- list_for_each(tmp, &service->srv_active_rqbds) {
+ cfs_list_for_each(tmp, &service->srv_active_rqbds) {
struct ptlrpc_request_buffer_desc *rqbd =
- list_entry(tmp, struct ptlrpc_request_buffer_desc,
- rqbd_list);
+ cfs_list_entry(tmp, struct ptlrpc_request_buffer_desc,
+ rqbd_list);
rc = LNetMDUnlink(rqbd->rqbd_md_h);
LASSERT (rc == 0 || rc == -ENOENT);
/* Wait for the network to release any buffers it's currently
* filling */
for (;;) {
- spin_lock(&service->srv_lock);
+ cfs_spin_lock(&service->srv_lock);
rc = service->srv_nrqbd_receiving;
- spin_unlock(&service->srv_lock);
+ cfs_spin_unlock(&service->srv_lock);
if (rc == 0)
break;
}
/* schedule all outstanding replies to terminate them */
- spin_lock(&service->srv_lock);
- while (!list_empty(&service->srv_active_replies)) {
+ cfs_spin_lock(&service->srv_lock);
+ while (!cfs_list_empty(&service->srv_active_replies)) {
struct ptlrpc_reply_state *rs =
- list_entry(service->srv_active_replies.next,
- struct ptlrpc_reply_state, rs_list);
- spin_lock(&rs->rs_lock);
+ cfs_list_entry(service->srv_active_replies.next,
+ struct ptlrpc_reply_state, rs_list);
+ cfs_spin_lock(&rs->rs_lock);
ptlrpc_schedule_difficult_reply(rs);
- spin_unlock(&rs->rs_lock);
+ cfs_spin_unlock(&rs->rs_lock);
}
- spin_unlock(&service->srv_lock);
+ cfs_spin_unlock(&service->srv_lock);
/* purge the request queue. NB No new replies (rqbds all unlinked)
* and no service threads, so I'm the only thread noodling the
* request queue now */
- while (!list_empty(&service->srv_req_in_queue)) {
+ while (!cfs_list_empty(&service->srv_req_in_queue)) {
struct ptlrpc_request *req =
- list_entry(service->srv_req_in_queue.next,
- struct ptlrpc_request,
- rq_list);
+ cfs_list_entry(service->srv_req_in_queue.next,
+ struct ptlrpc_request,
+ rq_list);
- list_del(&req->rq_list);
+ cfs_list_del(&req->rq_list);
service->srv_n_queued_reqs--;
service->srv_n_active_reqs++;
ptlrpc_server_finish_request(req);
while (ptlrpc_server_request_pending(service, 1)) {
struct ptlrpc_request *req;
- req = ptlrpc_server_request_get(service, 1);
- list_del(&req->rq_list);
+ req = ptlrpc_server_request_get(service);
+ cfs_list_del(&req->rq_list);
service->srv_n_queued_reqs--;
service->srv_n_active_reqs++;
ptlrpc_hpreq_fini(req);
LASSERT(service->srv_n_queued_reqs == 0);
LASSERT(service->srv_n_active_reqs == 0);
LASSERT(service->srv_n_history_rqbds == 0);
- LASSERT(list_empty(&service->srv_active_rqbds));
+ LASSERT(cfs_list_empty(&service->srv_active_rqbds));
/* Now free all the request buffers since nothing references them
* any more... */
- while (!list_empty(&service->srv_idle_rqbds)) {
+ while (!cfs_list_empty(&service->srv_idle_rqbds)) {
struct ptlrpc_request_buffer_desc *rqbd =
- list_entry(service->srv_idle_rqbds.next,
- struct ptlrpc_request_buffer_desc,
- rqbd_list);
+ cfs_list_entry(service->srv_idle_rqbds.next,
+ struct ptlrpc_request_buffer_desc,
+ rqbd_list);
ptlrpc_free_rqbd(rqbd);
}
ptlrpc_wait_replies(service);
- list_for_each_entry_safe(rs, t, &service->srv_free_rs_list, rs_list) {
- list_del(&rs->rs_list);
+ cfs_list_for_each_entry_safe(rs, t, &service->srv_free_rs_list,
+ rs_list) {
+ cfs_list_del(&rs->rs_list);
OBD_FREE(rs, service->srv_max_reply_size);
}
if (array->paa_reqs_array != NULL) {
OBD_FREE(array->paa_reqs_array,
- sizeof(struct list_head) * array->paa_size);
+ sizeof(cfs_list_t) * array->paa_size);
array->paa_reqs_array = NULL;
}
if (svc == NULL)
return 0;
- do_gettimeofday(&right_now);
+ cfs_gettimeofday(&right_now);
- spin_lock(&svc->srv_lock);
+ cfs_spin_lock(&svc->srv_lock);
if (!ptlrpc_server_request_pending(svc, 1)) {
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
return 0;
}
/* How long has the next entry been waiting? */
- if (list_empty(&svc->srv_request_queue))
- request = list_entry(svc->srv_request_hpq.next,
- struct ptlrpc_request, rq_list);
+ if (cfs_list_empty(&svc->srv_request_queue))
+ request = cfs_list_entry(svc->srv_request_hpq.next,
+ struct ptlrpc_request, rq_list);
else
- request = list_entry(svc->srv_request_queue.next,
- struct ptlrpc_request, rq_list);
+ request = cfs_list_entry(svc->srv_request_queue.next,
+ struct ptlrpc_request, rq_list);
timediff = cfs_timeval_sub(&right_now, &request->rq_arrival_time, NULL);
- spin_unlock(&svc->srv_lock);
+ cfs_spin_unlock(&svc->srv_lock);
if ((timediff / ONE_MILLION) > (AT_OFF ? obd_timeout * 3/2 :
at_max)) {
git://git.whamcloud.com / fs / lustre-release.git / blobdiff