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authorLorenzo Stoakes <lstoakes@gmail.com>2016-10-13 01:20:19 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-19 08:12:14 -0700
commit6347e8d5bcce33fc36e651901efefbe2c93a43ef (patch)
tree8b738e79772acf156b4bbeca09127afb7dae9554 /include/linux/mm.h
parent442486ec1096781c50227b73f721a63974b0fdda (diff)
mm: replace access_remote_vm() write parameter with gup_flags
This removes the 'write' argument from access_remote_vm() and replaces it with 'gup_flags' as use of this function previously silently implied FOLL_FORCE, whereas after this patch callers explicitly pass this flag. We make this explicit as use of FOLL_FORCE can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ecc4be7b67e0..f31bf9058587 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1268,7 +1268,7 @@ static inline int fixup_user_fault(struct task_struct *tsk,
extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
- void *buf, int len, int write);
+ void *buf, int len, unsigned int gup_flags);
long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,