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shmem: include header file to declare swap_info 

It's bad to extern swap_info[] in .c.  Include corresponding header file
instead.

Link: https://lkml.kernel.org/r/20210812120350.49801-5-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>
This commit is contained in:
Miaohe Lin 2021-09-02 14:54:15 -07:00 committed by Linus Torvalds
parent cdd89d4cb6
commit 86a2f3f2d9
1 changed files with 1 additions and 2 deletions
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3
mm/shmem.c
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@ -38,6 +38,7 @@
#include <linux/hugetlb.h>
#include <linux/frontswap.h>
#include <linux/fs_parser.h>
#include <linux/swapfile.h>
static struct vfsmount *shm_mnt;
@ -1152,8 +1153,6 @@ static void shmem_evict_inode(struct inode *inode)
clear_inode(inode);
}
extern struct swap_info_struct *swap_info[];
static int shmem_find_swap_entries(struct address_space *mapping,
pgoff_t start, unsigned int nr_entries,
struct page **entries, pgoff_t *indices,