diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/curl.c | 2 | ||||
| -rw-r--r-- | block/io.c | 5 | ||||
| -rw-r--r-- | block/iscsi.c | 8 | ||||
| -rw-r--r-- | block/null.c | 4 | ||||
| -rw-r--r-- | block/qed.c | 12 | ||||
| -rw-r--r-- | block/qed.h | 3 | ||||
| -rw-r--r-- | block/throttle-groups.c | 2 |
7 files changed, 34 insertions, 2 deletions
diff --git a/block/curl.c b/block/curl.c index 792fef8269..65e6da1f2c 100644 --- a/block/curl.c +++ b/block/curl.c @@ -424,9 +424,11 @@ static void curl_multi_timeout_do(void *arg) return; } + aio_context_acquire(s->aio_context); curl_multi_socket_action(s->multi, CURL_SOCKET_TIMEOUT, 0, &running); curl_multi_check_completion(s); + aio_context_release(s->aio_context); #else abort(); #endif diff --git a/block/io.c b/block/io.c index 76dfaf4250..dd6c74f62c 100644 --- a/block/io.c +++ b/block/io.c @@ -2080,6 +2080,11 @@ void bdrv_aio_cancel(BlockAIOCB *acb) if (acb->aiocb_info->get_aio_context) { aio_poll(acb->aiocb_info->get_aio_context(acb), true); } else if (acb->bs) { + /* qemu_aio_ref and qemu_aio_unref are not thread-safe, so + * assert that we're not using an I/O thread. Thread-safe + * code should use bdrv_aio_cancel_async exclusively. + */ + assert(bdrv_get_aio_context(acb->bs) == qemu_get_aio_context()); aio_poll(bdrv_get_aio_context(acb->bs), true); } else { abort(); diff --git a/block/iscsi.c b/block/iscsi.c index 1860f1bc91..664b71a8fa 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -174,7 +174,7 @@ static void iscsi_retry_timer_expired(void *opaque) struct IscsiTask *iTask = opaque; iTask->complete = 1; if (iTask->co) { - qemu_coroutine_enter(iTask->co); + aio_co_wake(iTask->co); } } @@ -1392,16 +1392,20 @@ static void iscsi_nop_timed_event(void *opaque) { IscsiLun *iscsilun = opaque; + aio_context_acquire(iscsilun->aio_context); if (iscsi_get_nops_in_flight(iscsilun->iscsi) >= MAX_NOP_FAILURES) { error_report("iSCSI: NOP timeout. Reconnecting..."); iscsilun->request_timed_out = true; } else if (iscsi_nop_out_async(iscsilun->iscsi, NULL, NULL, 0, NULL) != 0) { error_report("iSCSI: failed to sent NOP-Out. Disabling NOP messages."); - return; + goto out; } timer_mod(iscsilun->nop_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + NOP_INTERVAL); iscsi_set_events(iscsilun); + +out: + aio_context_release(iscsilun->aio_context); } static void iscsi_readcapacity_sync(IscsiLun *iscsilun, Error **errp) diff --git a/block/null.c b/block/null.c index b300390944..356209a42b 100644 --- a/block/null.c +++ b/block/null.c @@ -141,7 +141,11 @@ static void null_bh_cb(void *opaque) static void null_timer_cb(void *opaque) { NullAIOCB *acb = opaque; + AioContext *ctx = bdrv_get_aio_context(acb->common.bs); + + aio_context_acquire(ctx); acb->common.cb(acb->common.opaque, 0); + aio_context_release(ctx); timer_deinit(&acb->timer); qemu_aio_unref(acb); } diff --git a/block/qed.c b/block/qed.c index 7f1c508676..a21d0255f0 100644 --- a/block/qed.c +++ b/block/qed.c @@ -345,10 +345,22 @@ static void qed_need_check_timer_cb(void *opaque) trace_qed_need_check_timer_cb(s); + qed_acquire(s); qed_plug_allocating_write_reqs(s); /* Ensure writes are on disk before clearing flag */ bdrv_aio_flush(s->bs->file->bs, qed_clear_need_check, s); + qed_release(s); +} + +void qed_acquire(BDRVQEDState *s) +{ + aio_context_acquire(bdrv_get_aio_context(s->bs)); +} + +void qed_release(BDRVQEDState *s) +{ + aio_context_release(bdrv_get_aio_context(s->bs)); } static void qed_start_need_check_timer(BDRVQEDState *s) diff --git a/block/qed.h b/block/qed.h index 9676ab9479..ce8c314089 100644 --- a/block/qed.h +++ b/block/qed.h @@ -198,6 +198,9 @@ enum { */ typedef void QEDFindClusterFunc(void *opaque, int ret, uint64_t offset, size_t len); +void qed_acquire(BDRVQEDState *s); +void qed_release(BDRVQEDState *s); + /** * Generic callback for chaining async callbacks */ diff --git a/block/throttle-groups.c b/block/throttle-groups.c index 17b2efb7c7..aade5def39 100644 --- a/block/throttle-groups.c +++ b/block/throttle-groups.c @@ -416,7 +416,9 @@ static void timer_cb(BlockBackend *blk, bool is_write) qemu_mutex_unlock(&tg->lock); /* Run the request that was waiting for this timer */ + aio_context_acquire(blk_get_aio_context(blk)); empty_queue = !qemu_co_enter_next(&blkp->throttled_reqs[is_write]); + aio_context_release(blk_get_aio_context(blk)); /* If the request queue was empty then we have to take care of * scheduling the next one */ |