Contributors: 1
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Arnaldo Carvalho de Melo |
92 |
100.00% |
1 |
100.00% |
| Total |
92 |
|
1 |
|
/*
* From code in arch/x86/lib/usercopy_64.c, copied to keep tools/ copy
* of the kernel's arch/x86/lib/memcpy_64.s used in 'perf bench mem memcpy'
* happy.
*/
#include <linux/types.h>
unsigned long __memcpy_mcsafe(void *dst, const void *src, size_t cnt);
unsigned long mcsafe_handle_tail(char *to, char *from, unsigned len);
unsigned long mcsafe_handle_tail(char *to, char *from, unsigned len)
{
for (; len; --len, to++, from++) {
/*
* Call the assembly routine back directly since
* memcpy_mcsafe() may silently fallback to memcpy.
*/
unsigned long rem = __memcpy_mcsafe(to, from, 1);
if (rem)
break;
}
return len;
}