eCryptfs: Minor fixes to printk messages

The printk statements that result when the user does not have the
proper key available could use some refining.
Signed-off-by: Mike Halcrow <mhalcrow@us.ibm.com>
Cc: Mike Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/ecryptfs/crypto.c

@@ -1527,9 +1527,10 @@ int ecryptfs_read_xattr_region(char *page_virt, struct inode *ecryptfs_inode)
 	size = ecryptfs_getxattr_lower(lower_dentry, ECRYPTFS_XATTR_NAME,
 				       page_virt, ECRYPTFS_DEFAULT_EXTENT_SIZE);
 	if (size < 0) {
-		printk(KERN_ERR "Error attempting to read the [%s] "
-		       "xattr from the lower file; return value = [%zd]\n",
-		       ECRYPTFS_XATTR_NAME, size);
+		if (unlikely(ecryptfs_verbosity > 0))
+			printk(KERN_INFO "Error attempting to read the [%s] "
+			       "xattr from the lower file; return value = "
+			       "[%zd]\n", ECRYPTFS_XATTR_NAME, size);
 		rc = -EINVAL;
 		goto out;
 	}

fs/ecryptfs/file.c

@@ -209,9 +209,10 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
 			if (!(mount_crypt_stat->flags
 			      & ECRYPTFS_PLAINTEXT_PASSTHROUGH_ENABLED)) {
 				rc = -EIO;
-				printk(KERN_WARNING "Attempt to read file that "
+				printk(KERN_WARNING "Either the lower file "
 				       "is not in a valid eCryptfs format, "
-				       "and plaintext passthrough mode is not "
+				       "or the key could not be retrieved. "
+				       "Plaintext passthrough mode is not "
 				       "enabled; returning -EIO\n");
 				mutex_unlock(&crypt_stat->cs_mutex);
 				goto out_free;

fs/ecryptfs/inode.c

@@ -873,11 +873,11 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
 			if (!(mount_crypt_stat->flags
 			      & ECRYPTFS_PLAINTEXT_PASSTHROUGH_ENABLED)) {
 				rc = -EIO;
-				printk(KERN_WARNING "Attempt to read file that "
+				printk(KERN_WARNING "Either the lower file "
 				       "is not in a valid eCryptfs format, "
-				       "and plaintext passthrough mode is not "
+				       "or the key could not be retrieved. "
+				       "Plaintext passthrough mode is not "
 				       "enabled; returning -EIO\n");
-
 				mutex_unlock(&crypt_stat->cs_mutex);
 				goto out;
 			}