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fix extended partition detection 

# mdadm --detail --export /dev/md127p1

Before:
MD_LEVEL=raid5
MD_DEVICES=4
MD_METADATA=0.90

After:
MD_LEVEL=raid5
MD_DEVICES=4
MD_CONTAINER=/dev/md0
MD_MEMBER=0
MD_UUID=55746a20:925d24a7:4f9bd7e2:9c9a411f

We parse the symlink target with a format:

../../block/mdXXX/mdXXXpYY

...and need the second '/' from the end of the string to read detect a
'md' device.

Reported-by: Krzysztof Wasilewski <krzysztof.wasilewski@intel.com>
Cc: Przemyslaw Czarnowski <przemyslaw.hawrylewicz.czarnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Dan Williams 2011-01-24 18:54:06 -08:00 committed by NeilBrown
parent 20b60dcd6c
commit aa4cab513d
1 changed files with 1 additions and 1 deletions
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2
util.c
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@ -1729,7 +1729,7 @@ int stat2devnum(struct stat *st)
link[n] = 0;
cp = strrchr(link, '/');
if (cp) *cp = 0;
cp = strchr(link, '/');
cp = strrchr(link, '/');
if (cp && strncmp(cp, "/md", 3) == 0)
return devname2devnum(cp+1);
}