mm: filemap: move sysctl to mm/filemap.c

This moves the filemap related sysctl to mm/filemap.c, and
removes the redundant external variable declaration.

Signed-off-by: Kaixiong Yu <yukaixiong@huawei.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Joel Granados <joel.granados@kernel.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 7b1068ddcbb7..70cca450a68a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -40,8 +40,6 @@ struct user_struct;
 struct pt_regs;
 struct folio_batch;
 
-extern int sysctl_page_lock_unfairness;
-
 void mm_core_init(void);
 void init_mm_internals(void);