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authorLorenzo Stoakes <lstoakes@gmail.com>2016-10-13 01:20:14 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-12-17 21:55:16 +0100
commitffe6376c1803b5e964f609e8bc01507642397641 (patch)
tree1c3534cd6ac2c075f410f680a06ea725cc2145aa /include/linux/mm.h
parent2b29980eb75bc7dcb23ed0436fe805ac6e684542 (diff)
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mm: replace get_user_pages_locked() write/force parameters with gup_flags
commit 3b913179c3fa89dd0e304193fa0c746fc0481447 upstream. This removes the 'write' and 'force' use from get_user_pages_locked() and replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers as use of this flag 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> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> [bwh: Backported to 4.4: adjust context] 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.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index c043c936a4a5..cbb9bd8b910a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1203,8 +1203,7 @@ long get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
struct vm_area_struct **vmas);
long get_user_pages_locked(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
- int write, int force, struct page **pages,
- int *locked);
+ unsigned int gup_flags, struct page **pages, int *locked);
long __get_user_pages_unlocked(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
struct page **pages, unsigned int gup_flags);