shmem: remove unneeded function forward declaration

The forward declaration for shmem_should_replace_page() and
shmem_replace_page() is unnecessary.  Remove them.

Link: https://lkml.kernel.org/r/20210812120350.49801-4-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/shmem.c b/mm/shmem.c
index c69adf9..c4087f7 100644 (file)
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -135,9 +135,6 @@ static unsigned long shmem_default_max_inodes(void)
 }
 #endif
 
-static bool shmem_should_replace_page(struct page *page, gfp_t gfp);
-static int shmem_replace_page(struct page **pagep, gfp_t gfp,
-                               struct shmem_inode_info *info, pgoff_t index);
 static int shmem_swapin_page(struct inode *inode, pgoff_t index,
                             struct page **pagep, enum sgp_type sgp,
                             gfp_t gfp, struct vm_area_struct *vma,