ecryptfs: remove debug as mount option, and warn if set via modprobe

ecryptfs_debug really should not be a mount option; it is not per-mount,
but rather sets a global "ecryptfs_verbosity" variable which affects all
mounted filesysytems.  It's already settable as a module load option,
I think we can leave it at that.

Also, if set, since secret values come out in debug messages, kick
things off with a stern warning.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Acked-by: Mike Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 4 deletions

diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index 0556604e8dc2..c27ac2b358a1 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -174,10 +174,6 @@ static int ecryptfs_show_options(struct seq_file *m, struct vfsmount *mnt)
         }
         mutex_unlock(&mount_crypt_stat->global_auth_tok_list_mutex);
 
-        /* Note this is global and probably shouldn't be a mount option */
-        if (ecryptfs_verbosity)
-                seq_printf(m, ",ecryptfs_debug=%d\n", ecryptfs_verbosity);
-
         seq_printf(m, ",ecryptfs_cipher=%s",
                 mount_crypt_stat->global_default_cipher_name);