[RFC PATCH 05/20] ntfs: Undeprecate iocharset= mount option

["Pali Rohár" <pali@kernel.org>]

Other fs drivers are using iocharset= mount option for specifying charset.
So mark iocharset= mount option as preferred and deprecate nls= mount
option.

Signed-off-by: Pali Rohár <pali@kernel.org>
---
 fs/ntfs/inode.c  |  2 +-
 fs/ntfs/super.c  | 13 ++++---------
 fs/ntfs/unistr.c |  3 ++-
 3 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 4474adb393ca..3676f185b4a0 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -2303,7 +2303,7 @@ int ntfs_show_options(struct seq_file *sf, struct dentry *root)
 		seq_printf(sf, ",fmask=0%o", vol->fmask);
 		seq_printf(sf, ",dmask=0%o", vol->dmask);
 	}
-	seq_printf(sf, ",nls=%s", vol->nls_map->charset);
+	seq_printf(sf, ",iocharset=%s", vol->nls_map->charset);
 	if (NVolCaseSensitive(vol))
 		seq_printf(sf, ",case_sensitive");
 	if (NVolShowSystemFiles(vol))
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 0d7e948cb29c..02de1aa05b7c 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -192,11 +192,6 @@ static bool parse_options(ntfs_volume *vol, char *opt)
 			ntfs_warning(vol->sb, "Ignoring obsolete option %s.",
 					p);
 		else if (!strcmp(p, "nls") || !strcmp(p, "iocharset")) {
-			if (!strcmp(p, "iocharset"))
-				ntfs_warning(vol->sb, "Option iocharset is "
-						"deprecated. Please use "
-						"option nls=<charsetname> in "
-						"the future.");
 			if (!v || !*v)
 				goto needs_arg;
 use_utf8:
@@ -218,10 +213,10 @@ static bool parse_options(ntfs_volume *vol, char *opt)
 		} else if (!strcmp(p, "utf8")) {
 			bool val = false;
 			ntfs_warning(vol->sb, "Option utf8 is no longer "
-				   "supported, using option nls=utf8. Please "
-				   "use option nls=utf8 in the future and "
-				   "make sure utf8 is compiled either as a "
-				   "module or into the kernel.");
+				   "supported, using option iocharset=utf8. "
+				   "Please use option iocharset=utf8 in the "
+				   "future and make sure utf8 is compiled "
+				   "either as a module or into the kernel.");
 			if (!v || !*v)
 				val = true;
 			else if (!simple_getbool(v, &val))
diff --git a/fs/ntfs/unistr.c b/fs/ntfs/unistr.c
index a6b6c64f14a9..75a7f73bccdd 100644
--- a/fs/ntfs/unistr.c
+++ b/fs/ntfs/unistr.c
@@ -372,7 +372,8 @@ retry:			wc = nls->uni2char(le16_to_cpu(ins[i]), ns + o,
 conversion_err:
 	ntfs_error(vol->sb, "Unicode name contains characters that cannot be "
 			"converted to character set %s.  You might want to "
-			"try to use the mount option nls=utf8.", nls->charset);
+			"try to use the mount option iocharset=utf8.",
+			nls->charset);
 	if (ns != *outs)
 		kfree(ns);
 	if (wc != -ENAMETOOLONG)
-- 
2.20.1