linux-kernel - [PATCH 02/15] nilfs2: convert segment buffer to use kmap

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Date: Mon, 22 Jan 2024 23:01:49 +0900
From: Ryusuke Konishi <konishi.ryusuke@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-nilfs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 02/15] nilfs2: convert segment buffer to use kmap_local

In the segment buffer code used for log writing, a CRC calculation
routine uses the deprecated kmap_atomic(), so convert it to use
kmap_local.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@...il.com>
---
 fs/nilfs2/segbuf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index 6e59dc19a732..dc431b4c34c9 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -220,9 +220,9 @@ static void nilfs_segbuf_fill_in_data_crc(struct nilfs_segment_buffer *segbuf,
 		crc = crc32_le(crc, bh->b_data, bh->b_size);
 	}
 	list_for_each_entry(bh, &segbuf->sb_payload_buffers, b_assoc_buffers) {
-		kaddr = kmap_atomic(bh->b_page);
+		kaddr = kmap_local_page(bh->b_page);
 		crc = crc32_le(crc, kaddr + bh_offset(bh), bh->b_size);
-		kunmap_atomic(kaddr);
+		kunmap_local(kaddr);
 	}
 	raw_sum->ss_datasum = cpu_to_le32(crc);
 }
-- 
2.34.1