Re: [PATCH 2/2] conf: Reuse virDomainDefCheckDuplicateDiskWWN to check disk serial too

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On Tue, Sep 29, 2015 at 18:38:05 +0200, Peter Krempa wrote:
> Rename the function to virDomainDefCheckDuplicateDiskInfo and make it
> check disk serials too.
> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1245013
> ---
>  src/conf/domain_conf.c   | 15 ++++++++++++++-
>  src/conf/domain_conf.h   |  2 +-
>  src/libvirt_private.syms |  2 +-
>  src/qemu/qemu_process.c  |  2 +-
>  4 files changed, 17 insertions(+), 4 deletions(-)
> 
> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index 393ece7..e9d61db 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -24451,7 +24451,7 @@ virDomainDefNeedsPlacementAdvice(virDomainDefPtr def)
> 
> 
>  int
> -virDomainDefCheckDuplicateDiskWWN(virDomainDefPtr def)
> +virDomainDefCheckDuplicateDiskInfo(virDomainDefPtr def)
>  {
>      size_t i;
>      size_t j;
> @@ -24469,6 +24469,19 @@ virDomainDefCheckDuplicateDiskWWN(virDomainDefPtr def)
>                  }
>              }
>          }
> +
> +        if (def->disks[i]->serial) {
> +            for (j = i + 1; j < def->ndisks; j++) {
> +                if (STREQ_NULLABLE(def->disks[i]->serial,
> +                                   def->disks[j]->serial)) {
> +                    virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
> +                                   _("Disks '%s' and '%s' have identical serial"),
> +                                   def->disks[i]->dst,
> +                                   def->disks[j]->dst);
> +                    return -1;
> +                }
> +            }
> +        }

Any reason for going through all disks twice? Wouldn't it be better to
go through them once and check for both serial and wwn within a single
loop? :-)

Jirka

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