aboutsummaryrefslogtreecommitdiffstats
path: root/mm/maccess.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-01-08 17:04:20 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-08 17:04:20 -0500
commit9993b364d2c42acc2949ddbc6371405e17829e32 (patch)
treeb9eb8126c46f08cf09d513f77a48a53e941b7a92 /mm/maccess.c
parent82062e7b50280bcf0feca70ac35a44f375602976 (diff)
parentb11e1eca7ed9c0b5dab21a62c11acc711d9bdda0 (diff)
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: kgdb: Fix kernel-doc format error in kgdb.h blackfin,kgdb: Do not put PC in gdb_regs into retx. blackfin,kgdb,probe_kernel: Cleanup probe_kernel_read/write maccess,probe_kernel: Allow arch specific override probe_kernel_(read|write)
Diffstat (limited to 'mm/maccess.c')
-rw-r--r--mm/maccess.c11
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 */
17long probe_kernel_read(void *dst, void *src, size_t size) 17
18long __weak probe_kernel_read(void *dst, void *src, size_t size)
19 __attribute__((alias("__probe_kernel_read")));
20
21long __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 */
42long notrace __weak probe_kernel_write(void *dst, void *src, size_t size) 46long __weak probe_kernel_write(void *dst, void *src, size_t size)
47 __attribute__((alias("__probe_kernel_write")));
48
49long __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();