writeback: Fix performance regression in wb_over_bg_thresh()

[deliverable/linux.git] / lib / string.c

diff --git a/lib/string.c b/lib/string.c
index e9c9db161d2cf4f7a5d01bb9c707288f3811955e..ed83562a53ae5c57b7c55232cf703d3e4de90c58 100644 (file)
--- a/lib/string.c
+++ b/lib/string.c
@@ -656,35 +656,6 @@ int match_string(const char * const *array, size_t n, const char *string)
 }
 EXPORT_SYMBOL(match_string);
 
-/**
- * strtobool - convert common user inputs into boolean values
- * @s: input string
- * @res: result
- *
- * This routine returns 0 iff the first character is one of 'Yy1Nn0'.
- * Otherwise it will return -EINVAL.  Value pointed to by res is
- * updated upon finding a match.
- */
-int strtobool(const char *s, bool *res)
-{
-       switch (s[0]) {
-       case 'y':
-       case 'Y':
-       case '1':
-               *res = true;
-               break;
-       case 'n':
-       case 'N':
-       case '0':
-               *res = false;
-               break;
-       default:
-               return -EINVAL;
-       }
-       return 0;
-}
-EXPORT_SYMBOL(strtobool);
-
 #ifndef __HAVE_ARCH_MEMSET
 /**
  * memset - Fill a region of memory with the given value