cifs: move cache mount options to fs_context.ch

Helps to shrink connect.c and make it more readable
by moving mount related code to fs_context.c and
fs_context.h
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>

fs/cifs/connect.c

@@ -280,25 +280,6 @@ static const match_table_t cifs_mount_option_tokens = {
 	{ Opt_err, NULL }
 };
 
-/* cache flavors */
-enum {
-	Opt_cache_loose,
-	Opt_cache_strict,
-	Opt_cache_none,
-	Opt_cache_ro,
-	Opt_cache_rw,
-	Opt_cache_err
-};
-
-static const match_table_t cifs_cacheflavor_tokens = {
-	{ Opt_cache_loose, "loose" },
-	{ Opt_cache_strict, "strict" },
-	{ Opt_cache_none, "none" },
-	{ Opt_cache_ro, "ro" },
-	{ Opt_cache_rw, "singleclient" },
-	{ Opt_cache_err, NULL }
-};
-
 static const match_table_t cifs_smb_version_tokens = {
 	{ Smb_1, SMB1_VERSION_STRING },
 	{ Smb_20, SMB20_VERSION_STRING},
@@ -1346,49 +1327,6 @@ static int get_option_gid(substring_t args[], kgid_t *result)
 	return 0;
 }
 
-static int
-cifs_parse_cache_flavor(char *value, struct smb_vol *vol)
-{
-	substring_t args[MAX_OPT_ARGS];
-
-	switch (match_token(value, cifs_cacheflavor_tokens, args)) {
-	case Opt_cache_loose:
-		vol->direct_io = false;
-		vol->strict_io = false;
-		vol->cache_ro = false;
-		vol->cache_rw = false;
-		break;
-	case Opt_cache_strict:
-		vol->direct_io = false;
-		vol->strict_io = true;
-		vol->cache_ro = false;
-		vol->cache_rw = false;
-		break;
-	case Opt_cache_none:
-		vol->direct_io = true;
-		vol->strict_io = false;
-		vol->cache_ro = false;
-		vol->cache_rw = false;
-		break;
-	case Opt_cache_ro:
-		vol->direct_io = false;
-		vol->strict_io = false;
-		vol->cache_ro = true;
-		vol->cache_rw = false;
-		break;
-	case Opt_cache_rw:
-		vol->direct_io = false;
-		vol->strict_io = false;
-		vol->cache_ro = false;
-		vol->cache_rw = true;
-		break;
-	default:
-		cifs_dbg(VFS, "bad cache= option: %s\n", value);
-		return 1;
-	}
-	return 0;
-}
-
 static int
 cifs_parse_smb_version(char *value, struct smb_vol *vol, bool is_smb3)
 {

fs/cifs/fs_context.c

@@ -82,3 +82,55 @@ int cifs_parse_security_flavors(char *value, struct smb_vol *vol)
 
 	return 0;
 }
+
+static const match_table_t cifs_cacheflavor_tokens = {
+	{ Opt_cache_loose, "loose" },
+	{ Opt_cache_strict, "strict" },
+	{ Opt_cache_none, "none" },
+	{ Opt_cache_ro, "ro" },
+	{ Opt_cache_rw, "singleclient" },
+	{ Opt_cache_err, NULL }
+};
+
+int
+cifs_parse_cache_flavor(char *value, struct smb_vol *vol)
+{
+	substring_t args[MAX_OPT_ARGS];
+
+	switch (match_token(value, cifs_cacheflavor_tokens, args)) {
+	case Opt_cache_loose:
+		vol->direct_io = false;
+		vol->strict_io = false;
+		vol->cache_ro = false;
+		vol->cache_rw = false;
+		break;
+	case Opt_cache_strict:
+		vol->direct_io = false;
+		vol->strict_io = true;
+		vol->cache_ro = false;
+		vol->cache_rw = false;
+		break;
+	case Opt_cache_none:
+		vol->direct_io = true;
+		vol->strict_io = false;
+		vol->cache_ro = false;
+		vol->cache_rw = false;
+		break;
+	case Opt_cache_ro:
+		vol->direct_io = false;
+		vol->strict_io = false;
+		vol->cache_ro = true;
+		vol->cache_rw = false;
+		break;
+	case Opt_cache_rw:
+		vol->direct_io = false;
+		vol->strict_io = false;
+		vol->cache_ro = false;
+		vol->cache_rw = true;
+		break;
+	default:
+		cifs_dbg(VFS, "bad cache= option: %s\n", value);
+		return 1;
+	}
+	return 0;
+}

fs/cifs/fs_context.h

@@ -12,6 +12,17 @@
 #include <linux/parser.h>
 #include "cifsglob.h"
 
+enum {
+	Opt_cache_loose,
+	Opt_cache_strict,
+	Opt_cache_none,
+	Opt_cache_ro,
+	Opt_cache_rw,
+	Opt_cache_err
+};
+
+int cifs_parse_cache_flavor(char *value, struct smb_vol *vol);
+
 enum cifs_sec_param {
 	Opt_sec_krb5,
 	Opt_sec_krb5i,