[libvirt] [PATCH] qemu: Do not ignore mandatory features in migration cookie

Michal Privoznik mprivozn at redhat.com
Wed Feb 20 10:42:01 UTC 2013


On 20.02.2013 10:37, Jiri Denemark wrote:
> Due to "feature"/"features" nasty typo, any features marked as mandatory
> by one side of a migration are silently considered optional by the other
> side. The following is the code that formats mandatory features in
> migration cookie:
> 
>     for (i = 0 ; i < QEMU_MIGRATION_COOKIE_FLAG_LAST ; i++) {
>         if (mig->flagsMandatory & (1 << i))
>             virBufferAsprintf(buf, "  <feature name='%s'/>\n",
>                               qemuMigrationCookieFlagTypeToString(i));
>     }
> ---
>  src/qemu/qemu_migration.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
> index 82c3f97..17c1714 100644
> --- a/src/qemu/qemu_migration.c
> +++ b/src/qemu/qemu_migration.c
> @@ -863,7 +863,7 @@ qemuMigrationCookieXMLParse(qemuMigrationCookiePtr mig,
>  
>      /* Check to ensure all mandatory features from XML are also
>       * present in 'flags' */
> -    if ((n = virXPathNodeSet("./features", ctxt, &nodes)) < 0)
> +    if ((n = virXPathNodeSet("./feature", ctxt, &nodes)) < 0)
>          goto error;
>  
>      for (i = 0 ; i < n ; i++) {
> 

ACK. Nice catch.

Michal




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