diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2009-10-13 17:41:57 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-10-13 17:41:57 -0700 |
| commit | aae5a11207cf6da1682e6a76e116a19e21473f03 (patch) | |
| tree | 795953d4c515c82e2a43027e3f2861dc53efc77a /Detail.c | |
| parent | d2b9eb5993b6c36bf1d66980811bda1b6eefb19f (diff) | |
Detail: export MD_UUID from mapfile
The load_super() from an mdadm --detail call may race against an mdmon
update. When this happens the load_super sees an inconsistent metadata
block and returns an error. The fallback path to use the map file
contents lacks uuid reporting, so provide __fname_from_uuid for
generically printing a uuid.
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'Detail.c')
| -rw-r--r-- | Detail.c | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -194,7 +194,12 @@ int Detail(char *dev, int brief, int export, int test, char *homehost) st->ss->export_detail_super(st); } else { struct map_ent *mp, *map = NULL; + char nbuf[64]; mp = map_by_devnum(&map, fd2devnum(fd)); + if (mp) { + __fname_from_uuid(mp->uuid, 0, nbuf, ':'); + printf("MD_UUID=%s\n", nbuf+5); + } if (mp && mp->path && strncmp(mp->path, "/dev/md/", 8) == 0) printf("MD_DEVNAME=%s\n", mp->path+8); |