diff mbox

migration: reorder code to make it symmetric

Message ID 1454626230-16334-1-git-send-email-richard.weiyang@gmail.com
State New
Headers show

Commit Message

Wei Yang Feb. 4, 2016, 10:50 p.m. UTC
In qemu_savevm_state_complete_precopy(), it iterates on each device to add
a json object and transfer related status to destination, while the order
of the last two steps could be refined.

Current order:

    json_start_object()
    	save_section_header()
    	vmstate_save()
    json_end_object()
    	save_section_footer()

After the change:

    json_start_object()
    	save_section_header()
    	vmstate_save()
    	save_section_footer()
    json_end_object()

This patch reorder the code to to make it symmetric. No functional change.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
---
 migration/savevm.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Comments

Wei Yang Feb. 11, 2016, 12:56 a.m. UTC | #1
Hello everyone,

Is this one correct?

On Thu, Feb 04, 2016 at 10:50:30PM +0000, Wei Yang wrote:
>In qemu_savevm_state_complete_precopy(), it iterates on each device to add
>a json object and transfer related status to destination, while the order
>of the last two steps could be refined.
>
>Current order:
>
>    json_start_object()
>    	save_section_header()
>    	vmstate_save()
>    json_end_object()
>    	save_section_footer()
>
>After the change:
>
>    json_start_object()
>    	save_section_header()
>    	vmstate_save()
>    	save_section_footer()
>    json_end_object()
>
>This patch reorder the code to to make it symmetric. No functional change.
>
>Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
>---
> migration/savevm.c |    5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
>diff --git a/migration/savevm.c b/migration/savevm.c
>index b9caf59..42bfab4 100644
>--- a/migration/savevm.c
>+++ b/migration/savevm.c
>@@ -1088,12 +1088,11 @@ void qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only)
>         json_prop_int(vmdesc, "instance_id", se->instance_id);
> 
>         save_section_header(f, se, QEMU_VM_SECTION_FULL);
>-
>         vmstate_save(f, se, vmdesc);
>-
>-        json_end_object(vmdesc);
>         trace_savevm_section_end(se->idstr, se->section_id, 0);
>         save_section_footer(f, se);
>+
>+        json_end_object(vmdesc);
>     }
> 
>     if (!in_postcopy) {
>-- 
>1.7.9.5
Wei Yang Feb. 20, 2016, 12:34 a.m. UTC | #2
Hi, Amit

Do you like this one?

On Thu, Feb 04, 2016 at 10:50:30PM +0000, Wei Yang wrote:
>In qemu_savevm_state_complete_precopy(), it iterates on each device to add
>a json object and transfer related status to destination, while the order
>of the last two steps could be refined.
>
>Current order:
>
>    json_start_object()
>    	save_section_header()
>    	vmstate_save()
>    json_end_object()
>    	save_section_footer()
>
>After the change:
>
>    json_start_object()
>    	save_section_header()
>    	vmstate_save()
>    	save_section_footer()
>    json_end_object()
>
>This patch reorder the code to to make it symmetric. No functional change.
>
>Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
>---
> migration/savevm.c |    5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
>diff --git a/migration/savevm.c b/migration/savevm.c
>index b9caf59..42bfab4 100644
>--- a/migration/savevm.c
>+++ b/migration/savevm.c
>@@ -1088,12 +1088,11 @@ void qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only)
>         json_prop_int(vmdesc, "instance_id", se->instance_id);
> 
>         save_section_header(f, se, QEMU_VM_SECTION_FULL);
>-
>         vmstate_save(f, se, vmdesc);
>-
>-        json_end_object(vmdesc);
>         trace_savevm_section_end(se->idstr, se->section_id, 0);
>         save_section_footer(f, se);
>+
>+        json_end_object(vmdesc);
>     }
> 
>     if (!in_postcopy) {
>-- 
>1.7.9.5
Amit Shah Feb. 22, 2016, 3:52 a.m. UTC | #3
On (Thu) 04 Feb 2016 [22:50:30], Wei Yang wrote:
> In qemu_savevm_state_complete_precopy(), it iterates on each device to add
> a json object and transfer related status to destination, while the order
> of the last two steps could be refined.
> 
> Current order:
> 
>     json_start_object()
>     	save_section_header()
>     	vmstate_save()
>     json_end_object()
>     	save_section_footer()
> 
> After the change:
> 
>     json_start_object()
>     	save_section_header()
>     	vmstate_save()
>     	save_section_footer()
>     json_end_object()
> 
> This patch reorder the code to to make it symmetric. No functional change.
> 
> Signed-off-by: Wei Yang <richard.weiyang@gmail.com>

Reviewed-by: Amit Shah <amit.shah@redhat.com>

Thanks,

		Amit
diff mbox

Patch

diff --git a/migration/savevm.c b/migration/savevm.c
index b9caf59..42bfab4 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -1088,12 +1088,11 @@  void qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only)
         json_prop_int(vmdesc, "instance_id", se->instance_id);
 
         save_section_header(f, se, QEMU_VM_SECTION_FULL);
-
         vmstate_save(f, se, vmdesc);
-
-        json_end_object(vmdesc);
         trace_savevm_section_end(se->idstr, se->section_id, 0);
         save_section_footer(f, se);
+
+        json_end_object(vmdesc);
     }
 
     if (!in_postcopy) {