diff options
Diffstat (limited to 'include/linux/uaccess.h')
| -rw-r--r-- | include/linux/uaccess.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index 558129af828a..9442423979c1 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -2,6 +2,9 @@ #define __LINUX_UACCESS_H__ #include <linux/sched.h> + +#define uaccess_kernel() segment_eq(get_fs(), KERNEL_DS) + #include <asm/uaccess.h> static __always_inline void pagefault_disabled_inc(void) @@ -111,4 +114,11 @@ extern long strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count); #define probe_kernel_address(addr, retval) \ probe_kernel_read(&retval, addr, sizeof(retval)) +#ifndef user_access_begin +#define user_access_begin() do { } while (0) +#define user_access_end() do { } while (0) +#define unsafe_get_user(x, ptr, err) do { if (unlikely(__get_user(x, ptr))) goto err; } while (0) +#define unsafe_put_user(x, ptr, err) do { if (unlikely(__put_user(x, ptr))) goto err; } while (0) +#endif + #endif /* __LINUX_UACCESS_H__ */ |