Patchwork [5/5] spice: drop obsolete iothread locking

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Submitter Gerd Hoffmann
Date May 11, 2011, 1:28 p.m.
Message ID <1305120482-8207-6-git-send-email-kraxel@redhat.com>
Download mbox | patch
Permalink /patch/95141/
State New
Headers show

Comments

Gerd Hoffmann - May 11, 2011, 1:28 p.m.
We don't use qemu internals from spice server context any more.
Thus we don't also need to grab the iothread mutex from spice
server context.  And we don't have to temporarely release the
lock to avoid deadlocks.  Drop all the calls.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 196a778428989217b82de042725dc8eb29c8f8d8)
---
 hw/qxl.c           |    8 --------
 ui/spice-display.c |    6 ------
 2 files changed, 0 insertions(+), 14 deletions(-)

Patch

diff --git a/hw/qxl.c b/hw/qxl.c
index 4dfddf0..2bb36c6 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -666,10 +666,8 @@  static void qxl_hard_reset(PCIQXLDevice *d, int loadvm)
     dprint(d, 1, "%s: start%s\n", __FUNCTION__,
            loadvm ? " (loadvm)" : "");
 
-    qemu_mutex_unlock_iothread();
     d->ssd.worker->reset_cursor(d->ssd.worker);
     d->ssd.worker->reset_image_cache(d->ssd.worker);
-    qemu_mutex_lock_iothread();
     qxl_reset_surfaces(d);
     qxl_reset_memslots(d);
 
@@ -799,9 +797,7 @@  static void qxl_reset_surfaces(PCIQXLDevice *d)
 {
     dprint(d, 1, "%s:\n", __FUNCTION__);
     d->mode = QXL_MODE_UNDEFINED;
-    qemu_mutex_unlock_iothread();
     d->ssd.worker->destroy_surfaces(d->ssd.worker);
-    qemu_mutex_lock_iothread();
     memset(&d->guest_surfaces.cmds, 0, sizeof(d->guest_surfaces.cmds));
 }
 
@@ -870,9 +866,7 @@  static void qxl_destroy_primary(PCIQXLDevice *d)
     dprint(d, 1, "%s\n", __FUNCTION__);
 
     d->mode = QXL_MODE_UNDEFINED;
-    qemu_mutex_unlock_iothread();
     d->ssd.worker->destroy_primary_surface(d->ssd.worker, 0);
-    qemu_mutex_lock_iothread();
 }
 
 static void qxl_set_mode(PCIQXLDevice *d, int modenr, int loadvm)
@@ -942,10 +936,8 @@  static void ioport_write(void *opaque, uint32_t addr, uint32_t val)
     case QXL_IO_UPDATE_AREA:
     {
         QXLRect update = d->ram->update_area;
-        qemu_mutex_unlock_iothread();
         d->ssd.worker->update_area(d->ssd.worker, d->ram->update_surface,
                                    &update, NULL, 0, 0);
-        qemu_mutex_lock_iothread();
         break;
     }
     case QXL_IO_NOTIFY_CMD:
diff --git a/ui/spice-display.c b/ui/spice-display.c
index 8579bfd..15f0704 100644
--- a/ui/spice-display.c
+++ b/ui/spice-display.c
@@ -176,18 +176,14 @@  void qemu_spice_create_host_primary(SimpleSpiceDisplay *ssd)
     surface.mem        = (intptr_t)ssd->buf;
     surface.group_id   = MEMSLOT_GROUP_HOST;
 
-    qemu_mutex_unlock_iothread();
     ssd->worker->create_primary_surface(ssd->worker, 0, &surface);
-    qemu_mutex_lock_iothread();
 }
 
 void qemu_spice_destroy_host_primary(SimpleSpiceDisplay *ssd)
 {
     dprint(1, "%s:\n", __FUNCTION__);
 
-    qemu_mutex_unlock_iothread();
     ssd->worker->destroy_primary_surface(ssd->worker, 0);
-    qemu_mutex_lock_iothread();
 }
 
 void qemu_spice_vm_change_state_handler(void *opaque, int running, int reason)
@@ -197,9 +193,7 @@  void qemu_spice_vm_change_state_handler(void *opaque, int running, int reason)
     if (running) {
         ssd->worker->start(ssd->worker);
     } else {
-        qemu_mutex_unlock_iothread();
         ssd->worker->stop(ssd->worker);
-        qemu_mutex_lock_iothread();
     }
     ssd->running = running;
 }