diff options
Diffstat (limited to 'mm')
-rw-r--r-- | mm/maccess.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/mm/maccess.c b/mm/maccess.c index 9073695ff25f..4e348dbaecd7 100644 --- a/mm/maccess.c +++ b/mm/maccess.c | |||
@@ -14,7 +14,11 @@ | |||
14 | * Safely read from address @src to the buffer at @dst. If a kernel fault | 14 | * Safely read from address @src to the buffer at @dst. If a kernel fault |
15 | * happens, handle that and return -EFAULT. | 15 | * happens, handle that and return -EFAULT. |
16 | */ | 16 | */ |
17 | long probe_kernel_read(void *dst, void *src, size_t size) | 17 | |
18 | long __weak probe_kernel_read(void *dst, void *src, size_t size) | ||
19 | __attribute__((alias("__probe_kernel_read"))); | ||
20 | |||
21 | long __probe_kernel_read(void *dst, void *src, size_t size) | ||
18 | { | 22 | { |
19 | long ret; | 23 | long ret; |
20 | mm_segment_t old_fs = get_fs(); | 24 | mm_segment_t old_fs = get_fs(); |
@@ -39,7 +43,10 @@ EXPORT_SYMBOL_GPL(probe_kernel_read); | |||
39 | * Safely write to address @dst from the buffer at @src. If a kernel fault | 43 | * Safely write to address @dst from the buffer at @src. If a kernel fault |
40 | * happens, handle that and return -EFAULT. | 44 | * happens, handle that and return -EFAULT. |
41 | */ | 45 | */ |
42 | long notrace __weak probe_kernel_write(void *dst, void *src, size_t size) | 46 | long __weak probe_kernel_write(void *dst, void *src, size_t size) |
47 | __attribute__((alias("__probe_kernel_write"))); | ||
48 | |||
49 | long __probe_kernel_write(void *dst, void *src, size_t size) | ||
43 | { | 50 | { |
44 | long ret; | 51 | long ret; |
45 | mm_segment_t old_fs = get_fs(); | 52 | mm_segment_t old_fs = get_fs(); |