diff options
| author | Alasdair Kergon <agk@redhat.com> | 2013-08-29 17:37:45 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2013-09-06 02:46:06 +0200 |
| commit | c2b04824620f30b52bb2fdcdd14c758b8c62c70f (patch) | |
| tree | 5a6c619a3f7fe93c074c437c5e7a9bb23fcecbe2 /drivers/md/dm-table.c | |
| parent | dm thin: set pool read-only if breaking_sharing fails block allocation (diff) | |
| download | linux-c2b04824620f30b52bb2fdcdd14c758b8c62c70f.tar.xz linux-c2b04824620f30b52bb2fdcdd14c758b8c62c70f.zip | |
dm ioctl: prevent rename to empty name or uuid
A device-mapper device must always have a name consisting of a non-empty
string. If the device also has a uuid, this similarly must not be an
empty string.
The DM_DEV_CREATE ioctl enforces these rules when the device is created,
but this patch is needed to enforce them when DM_DEV_RENAME is used to
change the name or uuid.
Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
Diffstat (limited to 'drivers/md/dm-table.c')
0 files changed, 0 insertions, 0 deletions