[PATCH] table-driven filesystems option parsing

From: "Randy.Dunlap" <rddunlap@osdl.org>, Will Dyson <will_dyson@pobox.com>, me

Add generic filesystem options parser (infrastructure) and use it to parse
mount options in several filesystems (adfs, affs, autofs, autofs4, ext2,
ext3, fat, hfs, hpfs, isofs, jfs, procfs, udf, and ufs).

It saves between 128 and 512 bytes per filesystem.

1 files changed, 21 insertions, 0 deletions

diff --git a/include/linux/parser.h b/include/linux/parser.h
new file mode 100644
index 000000000000..5f982a1a2600
--- /dev/null
+++ b/include/linux/parser.h
@@ -0,0 +1,21 @@
+struct match_token {
+	int token;
+	char *pattern;
+};
+
+typedef struct match_token match_table_t[];
+
+enum {MAX_OPT_ARGS = 3};
+
+typedef struct {
+	char *from;
+	char *to;
+} substring_t;
+
+int match_token(char *s, match_table_t table, substring_t args[]);
+
+int match_int(substring_t *, int *result);
+int match_octal(substring_t *, int *result);
+int match_hex(substring_t *, int *result);
+void match_strcpy(char *, substring_t *);
+char *match_strdup(substring_t *);