diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/beam/erl_async.c | 5 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_process.c | 2 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_thr_queue.c | 58 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_thr_queue.h | 2 | ||||
| -rw-r--r-- | erts/emulator/test/driver_SUITE.erl | 8 |
5 files changed, 50 insertions, 25 deletions
diff --git a/erts/emulator/beam/erl_async.c b/erts/emulator/beam/erl_async.c index 2dc7237f7c..8bca9ae582 100644 --- a/erts/emulator/beam/erl_async.c +++ b/erts/emulator/beam/erl_async.c @@ -304,8 +304,9 @@ static ERTS_INLINE ErtsAsync *async_get(ErtsThrQ_t *q, switch (erts_thr_q_inspect(q, 1)) { case ERTS_THR_Q_DIRTY: break; + case ERTS_THR_Q_NEED_THR_PRGR: #ifdef ERTS_SMP - case ERTS_THR_Q_NEED_THR_PRGR: { + { ErtsThrPrgrVal prgr = erts_thr_q_need_thr_progress(q); erts_thr_progress_wakeup(NULL, prgr); /* @@ -522,8 +523,8 @@ int erts_async_ready_clean(void *varq, void *val) switch (cstate) { case ERTS_THR_Q_DIRTY: return ERTS_ASYNC_READY_DIRTY; -#ifdef ERTS_SMP case ERTS_THR_Q_NEED_THR_PRGR: +#ifdef ERTS_SMP *((ErtsThrPrgrVal *) val) = erts_thr_q_need_thr_progress(&arq->thr_q); return ERTS_ASYNC_READY_NEED_THR_PRGR; diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index 055211ad9b..b8c6b64fc0 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -769,8 +769,8 @@ misc_aux_work_clean(ErtsThrQ_t *q, case ERTS_THR_Q_DIRTY: set_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_MISC); return aux_work | ERTS_SSI_AUX_WORK_MISC; -#ifdef ERTS_SMP case ERTS_THR_Q_NEED_THR_PRGR: +#ifdef ERTS_SMP set_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_MISC_THR_PRGR); erts_thr_progress_wakeup(awdp->esdp, erts_thr_q_need_thr_progress(q)); diff --git a/erts/emulator/beam/erl_thr_queue.c b/erts/emulator/beam/erl_thr_queue.c index 9ac4cd4b8e..efb8c635d7 100644 --- a/erts/emulator/beam/erl_thr_queue.c +++ b/erts/emulator/beam/erl_thr_queue.c @@ -449,32 +449,44 @@ clean(ErtsThrQ_t *q, int max_ops, int do_notify) if (inext == (erts_aint_t) &q->tail.data.marker) { q->head.head.ptr->next.ptr = &q->tail.data.marker; q->head.head.ptr = &q->tail.data.marker; -#ifdef ERTS_SMP - if (!q->head.next.thr_progress_reached) - return ERTS_THR_Q_NEED_THR_PRGR; -#else - if (do_notify) - q->head.notify(q->head.arg); -#endif - return ERTS_THR_Q_DIRTY; + goto check_thr_progress; } } } + + if (q->q.finalizing) { + ilast = erts_atomic_read_nob(&q->tail.data.last); + if (q->head.first == ((ErtsThrQElement_t *) ilast) + && ((ErtsThrQElement_t *) ilast) == &q->tail.data.marker + && q->head.first == &q->tail.data.marker) { + destroy(q); + } + else { + goto dirty; + } + } return ERTS_THR_Q_CLEAN; } - if (q->head.first != q->head.unref_end) { - if (do_notify) - q->head.notify(q->head.arg); - return ERTS_THR_Q_DIRTY; - } + if (q->head.first != q->head.unref_end) + goto dirty; + +check_thr_progress: #ifdef ERTS_SMP - if (!q->head.next.thr_progress_reached) - return ERTS_THR_Q_NEED_THR_PRGR; + if (q->head.next.thr_progress_reached) #endif + { + int um_refc_ix = q->head.next.um_refc_ix; + if (erts_atomic_read_acqb(&q->tail.data.um_refc[um_refc_ix]) == 0) { + dirty: + if (do_notify) + q->head.notify(q->head.arg); + return ERTS_THR_Q_DIRTY; + } + } - return ERTS_THR_Q_CLEAN; /* Waiting for unmanaged threads to complete... */ + return ERTS_THR_Q_NEED_THR_PRGR; } #endif @@ -492,7 +504,9 @@ erts_thr_q_clean(ErtsThrQ_t *q) ErtsThrQCleanState_t erts_thr_q_inspect(ErtsThrQ_t *q, int ensure_empty) { -#ifdef USE_THREADS +#ifndef USE_THREADS + return ERTS_THR_Q_CLEAN; +#else if (ensure_empty) { erts_aint_t inext; inext = erts_atomic_read_acqb(&q->head.head.ptr->next.atmc); @@ -523,11 +537,15 @@ erts_thr_q_inspect(ErtsThrQ_t *q, int ensure_empty) return ERTS_THR_Q_DIRTY; #ifdef ERTS_SMP - if (!q->head.next.thr_progress_reached) - return ERTS_THR_Q_NEED_THR_PRGR; + if (q->head.next.thr_progress_reached) #endif + { + int um_refc_ix = q->head.next.um_refc_ix; + if (erts_atomic_read_acqb(&q->tail.data.um_refc[um_refc_ix]) == 0) + return ERTS_THR_Q_DIRTY; + } + return ERTS_THR_Q_NEED_THR_PRGR; #endif - return ERTS_THR_Q_CLEAN; } static void diff --git a/erts/emulator/beam/erl_thr_queue.h b/erts/emulator/beam/erl_thr_queue.h index 407c23f5eb..edcf2c3823 100644 --- a/erts/emulator/beam/erl_thr_queue.h +++ b/erts/emulator/beam/erl_thr_queue.h @@ -96,9 +96,7 @@ typedef struct { typedef enum { ERTS_THR_Q_CLEAN, -#ifdef ERTS_SMP ERTS_THR_Q_NEED_THR_PRGR, -#endif ERTS_THR_Q_DIRTY, } ErtsThrQCleanState_t; diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl index e159c37d2c..d64ec2e97b 100644 --- a/erts/emulator/test/driver_SUITE.erl +++ b/erts/emulator/test/driver_SUITE.erl @@ -2185,6 +2185,14 @@ wait_deallocations() -> end. driver_alloc_size() -> + case erlang:system_info(smp_support) of + true -> + ok; + false -> + %% driver_alloc also used by elements in lock-free queues, + %% give these some time to be deallocated... + receive after 100 -> ok end + end, wait_deallocations(), case erlang:system_info({allocator_sizes, driver_alloc}) of false -> |