eCryptfs: Remove ecryptfs_unlink_sigs warnings

A feature was added to the eCryptfs umount helper to automatically
unlink the keys used for an eCryptfs mount from the kernel keyring upon
umount.  This patch keeps the unrecognized mount option warnings for
ecryptfs_unlink_sigs out of the logs.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 7638b0a02c8d..ccabd5faa04d 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -208,7 +208,7 @@ enum { ecryptfs_opt_sig, ecryptfs_opt_ecryptfs_sig,
        ecryptfs_opt_passthrough, ecryptfs_opt_xattr_metadata,
        ecryptfs_opt_encrypted_view, ecryptfs_opt_fnek_sig,
        ecryptfs_opt_fn_cipher, ecryptfs_opt_fn_cipher_key_bytes,
-       ecryptfs_opt_err };
+       ecryptfs_opt_unlink_sigs, ecryptfs_opt_err };
 
 static const match_table_t tokens = {
         {ecryptfs_opt_sig, "sig=%s"},
@@ -222,6 +222,7 @@ static const match_table_t tokens = {
         {ecryptfs_opt_fnek_sig, "ecryptfs_fnek_sig=%s"},
         {ecryptfs_opt_fn_cipher, "ecryptfs_fn_cipher=%s"},
         {ecryptfs_opt_fn_cipher_key_bytes, "ecryptfs_fn_key_bytes=%u"},
+        {ecryptfs_opt_unlink_sigs, "ecryptfs_unlink_sigs"},
         {ecryptfs_opt_err, NULL}
 };
 
@@ -402,6 +403,9 @@ static int ecryptfs_parse_options(struct super_block *sb, char *options)
                                 fn_cipher_key_bytes;
                         fn_cipher_key_bytes_set = 1;
                         break;
+                case ecryptfs_opt_unlink_sigs:
+                        mount_crypt_stat->flags |= ECRYPTFS_UNLINK_SIGS;
+                        break;
                 case ecryptfs_opt_err:
                 default:
                         printk(KERN_WARNING