diff options
| author | Greg Banks <gnb@melbourne.sgi.com> | 2005-01-04 05:41:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-01-04 05:41:31 -0800 |
| commit | 9a3ed4ef5e77e28427c33745d6317348123714c0 (patch) | |
| tree | e7592ad02be1112e078038b78167a3c61da5d13e /include | |
| parent | 066752a33fe75667a5e0e65b0e1fac8653ba4535 (diff) | |
[PATCH] oprofile: add check_user_page_readable()
Add check_user_page_readable() for kernel modules which need to follow user
space addresses but can't use get_user().
Signed-off-by: John Levon <levon@movementarian.org>
Signed-off-by: Greg Banks <gnb@melbourne.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index edc8c7d56185..93302390a475 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -802,6 +802,7 @@ extern struct page * vmalloc_to_page(void *addr); extern unsigned long vmalloc_to_pfn(void *addr); extern struct page * follow_page(struct mm_struct *mm, unsigned long address, int write); +extern int check_user_page_readable(struct mm_struct *mm, unsigned long address); int remap_pfn_range(struct vm_area_struct *, unsigned long, unsigned long, unsigned long, pgprot_t); |