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storage: Refactor iSCSI Source matching

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Create a separate iSCSI Source matching subroutine. Makes the calling
code a bit cleaner as well as sets up for future patches which need to
do better source hosts[0].name processing/checking.

As part of the effort the logic will be inverted from a multi-level
if statement to a series of single level checks for better readability
and further separation

Signed-off-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
John Ferlan 2015-03-30 19:59:26 -04:00
parent 4864e377c9
commit fc20b41271
1 changed files with 22 additions and 11 deletions
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33
src/conf/storage_conf.c
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@ -2406,6 +2406,26 @@ matchSCSIAdapterParent(virStoragePoolObjPtr pool,
}
static bool
virStoragePoolSourceISCSIMatch(virStoragePoolObjPtr matchpool,
virStoragePoolDefPtr def)
{
virStoragePoolSourcePtr poolsrc = &matchpool->def->source;
virStoragePoolSourcePtr defsrc = &def->source;
if (poolsrc->nhost != 1 && defsrc->nhost != 1)
return false;
if (STRNEQ(poolsrc->hosts[0].name, defsrc->hosts[0].name))
return false;
if (STRNEQ_NULLABLE(poolsrc->initiator.iqn, defsrc->initiator.iqn))
return false;
return true;
}
int
virStoragePoolSourceFindDuplicate(virConnectPtr conn,
virStoragePoolObjListPtr pools,
@ -2505,17 +2525,8 @@ virStoragePoolSourceFindDuplicate(virConnectPtr conn,
case VIR_STORAGE_POOL_ISCSI:
matchpool = virStoragePoolSourceFindDuplicateDevices(pool, def);
if (matchpool) {
if (matchpool->def->source.nhost == 1 && def->source.nhost == 1) {
if (STREQ(matchpool->def->source.hosts[0].name, def->source.hosts[0].name)) {
if ((matchpool->def->source.initiator.iqn) && (def->source.initiator.iqn)) {
if (STREQ(matchpool->def->source.initiator.iqn, def->source.initiator.iqn))
break;
matchpool = NULL;
}
break;
}
}
matchpool = NULL;
if (!virStoragePoolSourceISCSIMatch(matchpool, def))
matchpool = NULL;
}
break;
case VIR_STORAGE_POOL_FS: