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dm ioctl: allow dm_copy_name_and_uuid to return only one field
authorMilan Broz <mbroz@redhat.com>
Tue, 6 Jan 2009 03:05:04 +0000 (03:05 +0000)
committerAlasdair G Kergon <agk@redhat.com>
Tue, 6 Jan 2009 03:05:04 +0000 (03:05 +0000)
Allow NULL buffer in dm_copy_name_and_uuid if you only want to return one of
the fields.

(Required by a following patch that adds these fields to sysfs.)

Signed-off-by: Milan Broz <mbroz@redhat.com>
Reviewed-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

No differences found
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