[PATCH 2/8] nilfs2: drop usage of page_index

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From: Kairui Song <kasong@xxxxxxxxxxx>

page_index is only for mixed usage of page cache and swap cache, for
pure page cache usage, the caller can just use page->index instead.

It can't be a swap cache page here (being part of buffer head),
so just drop it.

Signed-off-by: Kairui Song <kasong@xxxxxxxxxxx>
Cc: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
Cc: linux-nilfs@xxxxxxxxxxxxxxx
 fs/nilfs2/bmap.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index 383f0afa2cea..4594a4459862 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -453,8 +453,7 @@ __u64 nilfs_bmap_data_get_key(const struct nilfs_bmap *bmap,
 	struct buffer_head *pbh;
 	__u64 key;
-	key = page_index(bh->b_page) << (PAGE_SHIFT -
-					 bmap->b_inode->i_blkbits);
+	key = bh->b_page->index << (PAGE_SHIFT - bmap->b_inode->i_blkbits);
 	for (pbh = page_buffers(bh->b_page); pbh != bh; pbh = pbh->b_this_page)

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