This commit was manufactured by cvs2svn to create tag

[linux-2.6.git] / include / asm-i386 / string.h

diff --git a/include/asm-i386/string.h b/include/asm-i386/string.h
index a14f9f3..c5ceb5d 100644 (file)
--- a/include/asm-i386/string.h
+++ b/include/asm-i386/string.h
@@ -58,6 +58,29 @@ __asm__ __volatile__(
 return dest;
 }
 
+/*
+ * This is a more generic variant of strncpy_count() suitable for
+ * implementing string-access routines with all sorts of return
+ * code semantics. It's used by mm/usercopy.c.
+ */
+static inline size_t strncpy_count(char * dest,const char *src,size_t count)
+{
+       __asm__ __volatile__(
+
+       "1:\tdecl %0\n\t"
+       "js 2f\n\t"
+       "lodsb\n\t"
+       "stosb\n\t"
+       "testb %%al,%%al\n\t"
+       "jne 1b\n\t"
+       "2:"
+       "incl %0"
+       : "=c" (count)
+       :"S" (src),"D" (dest),"0" (count) : "memory");
+
+       return count;
+}
+
 static inline char * strcat(char * dest,const char * src)
 {
 int d0, d1, d2, d3;