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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.

Link: https://lkml.kernel.org/r/20240122140202.6950-3-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Ryusuke Konishi 2024-01-22 23:01:49 +09:00 committed by Andrew Morton
parent 598daf7520
commit f7aeb97a58
1 changed files with 2 additions and 2 deletions
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4
fs/nilfs2/segbuf.c
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@ -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);
}