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| author | Lorenzo Stoakes <lstoakes@gmail.com> | 2016-10-13 01:20:19 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-17 21:55:17 +0100 |
| commit | 079d9ea86202777cd57c69879a5ba8db6a2c1b1e (patch) | |
| tree | 17bc1be04948e68d213297e2f2be79c82df692b4 /include/linux/mm.h | |
| parent | 2b8143d6874b385c79b60257bb0f0ad328ee2194 (diff) | |
| download | linux-stable-079d9ea86202777cd57c69879a5ba8db6a2c1b1e.tar.gz linux-stable-079d9ea86202777cd57c69879a5ba8db6a2c1b1e.tar.bz2 linux-stable-079d9ea86202777cd57c69879a5ba8db6a2c1b1e.zip | |
mm: replace access_remote_vm() write parameter with gup_flags
commit 6347e8d5bcce33fc36e651901efefbe2c93a43ef upstream.
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>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index d1cfd3657cce..9a0716e900b5 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1191,7 +1191,7 @@ 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, |