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metadata: Add a pv_label accessor (go from a PV to its label).

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This commit is contained in:
Petr Rockai
2013-07-29 18:54:59 +02:00
parent a2034e9a99
commit dc3a071145
2 changed files with 11 additions and 0 deletions
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10
lib/metadata/pv.c
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@ -350,3 +350,13 @@ unsigned pv_mda_set_ignored(const struct physical_volume *pv, unsigned mda_ignor
return 1; return 1;
} }
struct label *pv_label(const struct physical_volume *pv)
{
struct lvmcache_info *info =
lvmcache_info_from_pvid((const char *)&pv->id.uuid, 0);
if (!info) {
log_error(INTERNAL_ERROR "PV %s unexpectedly not in cache.", dev_name(pv->dev));
return NULL;
}
return lvmcache_get_label(info);
}

1
lib/metadata/pv.h
View File

@ -95,5 +95,6 @@ unsigned pv_mda_set_ignored(const struct physical_volume *pv, unsigned ignored);
int is_orphan(const struct physical_volume *pv); int is_orphan(const struct physical_volume *pv);
int is_missing_pv(const struct physical_volume *pv); int is_missing_pv(const struct physical_volume *pv);
int is_pv(const struct physical_volume *pv); int is_pv(const struct physical_volume *pv);
struct label *pv_label(const struct physical_volume *pv);
#endif /* _LVM_PV_H */ #endif /* _LVM_PV_H */