Re: [libvirt] [PATCH] conf: fix not format priority when it is zero

2015-06-25 Thread Martin Kletzander

On Wed, Jun 24, 2015 at 12:00:36PM +0800, Luyao Huang wrote:

https://bugzilla.redhat.com/show_bug.cgi?id=1235116

We do not format the priority if it is 0, but this will
be a broken settings in guest. Change the condition of
format priority element to always format priority if
scheduler is 'fifo' or 'rr'.

Signed-off-by: Luyao Huang lhu...@redhat.com
---
I haven't intorduce a new bool parameter to mark if we
set the priority value just like the other place we avoid
this issue, because i think this looks unnecessary in this
place.

src/conf/domain_conf.c |  6 ++--


The part for domain_conf.c didn't apply properly, but it's easy enough
to fix.

I modified the commit message as follows and pushed the patch:

   conf: Format scheduler priority when it is zero

   According to our XML definition, zero is as valid as any other value.
   Mainly because it should be kernel-agnostic.

Martin


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Re: [libvirt] [PATCH] conf: fix not format priority when it is zero

2015-06-25 Thread lhuang


On 06/26/2015 05:26 AM, Martin Kletzander wrote:

On Wed, Jun 24, 2015 at 12:00:36PM +0800, Luyao Huang wrote:

https://bugzilla.redhat.com/show_bug.cgi?id=1235116

We do not format the priority if it is 0, but this will
be a broken settings in guest. Change the condition of
format priority element to always format priority if
scheduler is 'fifo' or 'rr'.

Signed-off-by: Luyao Huang lhu...@redhat.com
---
I haven't intorduce a new bool parameter to mark if we
set the priority value just like the other place we avoid
this issue, because i think this looks unnecessary in this
place.

src/conf/domain_conf.c |  6 ++--


The part for domain_conf.c didn't apply properly, but it's easy enough
to fix.

I modified the commit message as follows and pushed the patch:

   conf: Format scheduler priority when it is zero

   According to our XML definition, zero is as valid as any other value.
   Mainly because it should be kernel-agnostic.


Thanks a lot for your help and quick review.


Martin


Luyao

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[libvirt] [PATCH] conf: fix not format priority when it is zero

2015-06-23 Thread Luyao Huang
https://bugzilla.redhat.com/show_bug.cgi?id=1235116

We do not format the priority if it is 0, but this will
be a broken settings in guest. Change the condition of
format priority element to always format priority if
scheduler is 'fifo' or 'rr'.

Signed-off-by: Luyao Huang lhu...@redhat.com
---
I haven't intorduce a new bool parameter to mark if we
set the priority value just like the other place we avoid
this issue, because i think this looks unnecessary in this
place.

 src/conf/domain_conf.c |  6 ++--
 ...xml2argv-cputune-iothreadsched-zeropriority.xml | 38 ++
 tests/qemuxml2xmltest.c|  1 +
 3 files changed, 43 insertions(+), 2 deletions(-)
 create mode 100644 
tests/qemuxml2argvdata/qemuxml2argv-cputune-iothreadsched-zeropriority.xml

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 183e66c..0c766a1 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -21424,7 +21424,8 @@ virDomainDefFormatInternal(virDomainDefPtr def,
   ids, virProcessSchedPolicyTypeToString(sp-policy));
 VIR_FREE(ids);
 
-if (sp-priority)
+if (sp-policy == VIR_PROC_POLICY_FIFO ||
+sp-policy == VIR_PROC_POLICY_RR)
 virBufferAsprintf(buf,  priority='%d', sp-priority);
 virBufferAddLit(buf, /\n);
 }
@@ -21439,7 +21440,8 @@ virDomainDefFormatInternal(virDomainDefPtr def,
   ids, virProcessSchedPolicyTypeToString(sp-policy));
 VIR_FREE(ids);
 
-if (sp-priority)
+if (sp-policy == VIR_PROC_POLICY_FIFO ||
+sp-policy == VIR_PROC_POLICY_RR)
 virBufferAsprintf(buf,  priority='%d', sp-priority);
 virBufferAddLit(buf, /\n);
 }
diff --git 
a/tests/qemuxml2argvdata/qemuxml2argv-cputune-iothreadsched-zeropriority.xml 
b/tests/qemuxml2argvdata/qemuxml2argv-cputune-iothreadsched-zeropriority.xml
new file mode 100644
index 000..0996723
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-cputune-iothreadsched-zeropriority.xml
@@ -0,0 +1,38 @@
+domain type='qemu'
+  nameQEMUGuest1/name
+  uuidc7a5fdbd-edaf-9455-926a-d65c16db1809/uuid
+  memory unit='KiB'219136/memory
+  currentMemory unit='KiB'219136/currentMemory
+  vcpu placement='static'2/vcpu
+  iothreads4/iothreads
+  cputune
+shares2048/shares
+period100/period
+quota-1/quota
+vcpupin vcpu='0' cpuset='0'/
+vcpupin vcpu='1' cpuset='1'/
+emulatorpin cpuset='1'/
+vcpusched vcpus='0-1' scheduler='fifo' priority='0'/
+iothreadsched iothreads='1-3' scheduler='rr' priority='0'/
+  /cputune
+  os
+type arch='i686' machine='pc'hvm/type
+boot dev='hd'/
+  /os
+  clock offset='utc'/
+  on_poweroffdestroy/on_poweroff
+  on_rebootrestart/on_reboot
+  on_crashdestroy/on_crash
+  devices
+emulator/usr/bin/qemu/emulator
+disk type='block' device='disk'
+  source dev='/dev/HostVG/QEMUGuest1'/
+  target dev='hda' bus='ide'/
+  address type='drive' controller='0' bus='0' target='0' unit='0'/
+/disk
+controller type='usb' index='0'/
+controller type='ide' index='0'/
+controller type='pci' index='0' model='pci-root'/
+memballoon model='virtio'/
+  /devices
+/domain
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 711827d..7a41a18 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -492,6 +492,7 @@ mymain(void)
 DO_TEST(cputune);
 DO_TEST(cputune-zero-shares);
 DO_TEST_DIFFERENT(cputune-iothreadsched);
+DO_TEST(cputune-iothreadsched-zeropriority);
 DO_TEST(cputune-numatune);
 DO_TEST(vcpu-placement-static);
 
-- 
1.8.3.1

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