diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2018-02-03 07:16:20 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-01-11 13:57:24 +0100 |
| commit | 83d11973fa78be5bf0fd0e00791245e974fe4af3 (patch) | |
| tree | 242507524d8d462a8c80ea6ddd048581fac7b7bb /block/iscsi.c | |
| parent | f92fa85f982bb169c72e790ce07ffb12bda1a89c (diff) | |
| download | qemu-83d11973fa78be5bf0fd0e00791245e974fe4af3.zip | |
block/iscsi: take iscsilun->mutex in iscsi_timed_check_events()
Commit d045c466d9e62b4321fadf586d024d54ddfd8bd4 ("iscsi: do not use
aio_context_acquire/release") introduced iscsilun->mutex but appears to
have overlooked iscsi_timed_check_events() when introducing the mutex.
iscsi_service() and iscsi_set_events() must be called with
iscsilun->mutex held.
iscsi_timed_check_events() is invoked from the AioContext and does not
take the mutex.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20180203061621.7033-3-stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'block/iscsi.c')
| -rw-r--r-- | block/iscsi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/block/iscsi.c b/block/iscsi.c index a4e3730a82..1924a2b58e 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -344,6 +344,8 @@ static void iscsi_timed_check_events(void *opaque) { IscsiLun *iscsilun = opaque; + qemu_mutex_lock(&iscsilun->mutex); + /* check for timed out requests */ iscsi_service(iscsilun->iscsi, 0); @@ -356,6 +358,8 @@ static void iscsi_timed_check_events(void *opaque) * to return to service once this situation changes. */ iscsi_set_events(iscsilun); + qemu_mutex_unlock(&iscsilun->mutex); + timer_mod(iscsilun->event_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + EVENT_INTERVAL); } |