dm ioctl: allow dm_copy_name_and_uuid to return only one field

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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>

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Milan Broz 2009-01-06 03:05:04 +00:00 • committed by Alasdair G Kergon

parent ac1f0ac22c

commit 23d39f63aa

1 changed files with 4 additions and 2 deletions

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drivers/md/dm-ioctl.c

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