linux-kernel - [PATCH 04/17] nilfs2: Remove page_address() from nilfs_add

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Message-Id: <20231127143036.2425-5-konishi.ryusuke@gmail.com>
Date:   Mon, 27 Nov 2023 23:30:23 +0900
From:   Ryusuke Konishi <konishi.ryusuke@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-nilfs@...r.kernel.org, Matthew Wilcox <willy@...radead.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 04/17] nilfs2: Remove page_address() from nilfs_add_link

From: "Matthew Wilcox (Oracle)" <willy@...radead.org>

In preparation for removing kmap from directory handling, use
offset_in_page() to calculate 'from'.  Matches ext2.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@...il.com>
---
 fs/nilfs2/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 9c0513245a3b..73f135290288 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -493,7 +493,7 @@ int nilfs_add_link(struct dentry *dentry, struct inode *inode)
 	return -EINVAL;
 
 got_it:
-	from = (char *)de - (char *)page_address(page);
+	from = offset_in_page(de);
 	to = from + rec_len;
 	err = nilfs_prepare_chunk(page, from, to);
 	if (err)
-- 
2.34.1