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Detect duplicate PV uuids - select the one on an md device if appropriate.

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This commit is contained in:
Alasdair Kergon 2003-01-06 21:10:43 +00:00
parent fdf481c665
commit f3f3424f9a
1 changed files with 23 additions and 0 deletions
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23
lib/cache/cache.c vendored
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@ -11,6 +11,9 @@
#include "toolcontext.h" #include "toolcontext.h"
#include "dev-cache.h" #include "dev-cache.h"
#include "metadata.h" #include "metadata.h"
#include "filter.h"
#include <linux/kdev_t.h>
static struct hash_table *_pvid_hash = NULL; static struct hash_table *_pvid_hash = NULL;
static struct hash_table *_vgid_hash = NULL; static struct hash_table *_vgid_hash = NULL;
@ -409,6 +412,26 @@ struct cache_info *cache_add(struct labeller *labeller, const char *pvid,
list_init(&info->list); list_init(&info->list);
info->dev = dev; info->dev = dev;
} else { } else {
if (existing->dev != dev) {
/* Is the existing entry a duplicate pvid e.g. md ? */
if (MAJOR(existing->dev->dev) == md_major() &&
MAJOR(dev->dev) != md_major()) {
log_very_verbose("Ignoring duplicate PV %s on "
"%s - using md %s",
pvid, dev_name(dev),
dev_name(existing->dev));
return NULL;
} else if (MAJOR(existing->dev->dev) != md_major() &&
MAJOR(dev->dev) == md_major())
log_very_verbose("Duplicate PV %s on %s - "
"using md %s", pvid,
dev_name(existing->dev),
dev_name(dev));
else
log_error("Found duplicate PV %s: using %s not "
"%s", pvid, dev_name(dev),
dev_name(existing->dev));
}
info = existing; info = existing;
/* Has labeller changed? */ /* Has labeller changed? */
if (info->label->labeller != labeller) { if (info->label->labeller != labeller) {