From db08ca25253d56f1f76eb4b3fe32a7ac1fbab741 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 25 Dec 2019 22:14:54 -0700 Subject: mm: make do_madvise() available internally This is in preparation for enabling this functionality through io_uring. Add a helper that is just exporting what sys_madvise() does, and have the system call use it. No functional changes in this patch. Reviewed-by: Pavel Begunkov Signed-off-by: Jens Axboe --- include/linux/mm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index cfaa8feecfe8..b4ba5b3bb54b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2328,6 +2328,7 @@ extern int __do_munmap(struct mm_struct *, unsigned long, size_t, struct list_head *uf, bool downgrade); extern int do_munmap(struct mm_struct *, unsigned long, size_t, struct list_head *uf); +extern int do_madvise(unsigned long start, size_t len_in, int behavior); static inline unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, -- cgit v1.2.3