diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2021-01-06 18:19:05 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-19 18:27:33 +0100 |
| commit | 0eb56457d239f5ee555ad9dc0c086a0abd933f1b (patch) | |
| tree | 328dd3e3a8d8d9ae68b500f38f43f3df8861bef8 /drivers/md/dm.c | |
| parent | 26865769ed8f03c49106c3e2e588733ca55c3525 (diff) | |
dm: eliminate potential source of excessive kernel log noise
commit 0378c625afe80eb3f212adae42cc33c9f6f31abf upstream.
There wasn't ever a real need to log an error in the kernel log for
ioctls issued with insufficient permissions. Simply return an error
and if an admin/user is sufficiently motivated they can enable DM's
dynamic debugging to see an explanation for why the ioctls were
disallowed.
Reported-by: Nir Soffer <nsoffer@redhat.com>
Fixes: e980f62353c6 ("dm: don't allow ioctls to targets that don't map to whole devices")
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 4e0cbfe3f14d..1e99a4c1eca4 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -562,7 +562,7 @@ static int dm_blk_ioctl(struct block_device *bdev, fmode_t mode, * subset of the parent bdev; require extra privileges. */ if (!capable(CAP_SYS_RAWIO)) { - DMWARN_LIMIT( + DMDEBUG_LIMIT( "%s: sending ioctl %x to DM device without required privilege.", current->comm, cmd); r = -ENOIOCTLCMD; |