[libvirt] [PATCH v2 08/13] Remove pointless 'qemuVersion' field from virQEMUDriverPtr

[Daniel P. Berrange]

From: "Daniel P. Berrange" <berrange at redhat.com>

The QEMU driver struct has a 'qemuVersion' field that was previously
used to cache the version lookup from capabilities. With the recent
QEMU capabilities rewrite the caching happens at a lower level so
this field is pointless. Removing it avoids worries about locking
when updating it.

Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
---
 src/qemu/qemu_conf.h   | 2 --
 src/qemu/qemu_driver.c | 5 +++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h
index 1cc277f..2b27a3e 100644
--- a/src/qemu/qemu_conf.h
+++ b/src/qemu/qemu_conf.h
@@ -158,8 +158,6 @@ struct _virQEMUDriver {
 
     virThreadPoolPtr workerPool;
 
-    unsigned int qemuVersion;
-
     int nextvmid;
 
     virCgroupPtr cgroup;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 603c4fa..e2c6d07 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -1502,14 +1502,15 @@ cleanup:
 static int qemuGetVersion(virConnectPtr conn, unsigned long *version) {
     virQEMUDriverPtr driver = conn->privateData;
     int ret = -1;
+    unsigned int qemuVersion;
 
     qemuDriverLock(driver);
     if (qemuCapsGetDefaultVersion(driver->caps,
                                   driver->capsCache,
-                                  &driver->qemuVersion) < 0)
+                                  &qemuVersion) < 0)
         goto cleanup;
 
-    *version = driver->qemuVersion;
+    *version = qemuVersion;
     ret = 0;
 
 cleanup:
-- 
1.8.0.2