diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2017-03-20 21:08:07 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-03-28 16:43:25 -0400 |
| commit | db68ce10c4f0a27c1ff9fa0e789e5c41f8c4ea63 (patch) | |
| tree | 77eda1d247853a2d414e0047c620b3c72bb11a1a /arch/arm | |
| parent | aaa2e7ac80f679230faf28a8e12e8d68dbe977eb (diff) | |
new helper: uaccess_kernel()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/uaccess.h | 2 | ||||
| -rw-r--r-- | arch/arm/lib/uaccess_with_memcpy.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 9677a7cf7987..b63527359d52 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -266,7 +266,7 @@ static inline void set_fs(mm_segment_t fs) #define access_ok(type, addr, size) (__range_ok(addr, size) == 0) #define user_addr_max() \ - (segment_eq(get_fs(), KERNEL_DS) ? ~0UL : get_fs()) + (uaccess_kernel() ? ~0UL : get_fs()) /* * The "__xxx" versions of the user access functions do not verify the diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c index 6bd1089b07e0..9b4ed1728616 100644 --- a/arch/arm/lib/uaccess_with_memcpy.c +++ b/arch/arm/lib/uaccess_with_memcpy.c @@ -90,7 +90,7 @@ __copy_to_user_memcpy(void __user *to, const void *from, unsigned long n) unsigned long ua_flags; int atomic; - if (unlikely(segment_eq(get_fs(), KERNEL_DS))) { + if (uaccess_kernel()) { memcpy((void *)to, from, n); return 0; } @@ -162,7 +162,7 @@ __clear_user_memset(void __user *addr, unsigned long n) { unsigned long ua_flags; - if (unlikely(segment_eq(get_fs(), KERNEL_DS))) { + if (uaccess_kernel()) { memset((void *)addr, 0, n); return 0; } |