+ nilfs2-convert-segment-buffer-to-use-kmap_local.patch added to mm-nonmm-unstable branch

+ nilfs2-convert-segment-buffer-to-use-kmap_local.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: nilfs2: convert segment buffer to use kmap_local
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     nilfs2-convert-segment-buffer-to-use-kmap_local.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/nilfs2-convert-segment-buffer-to-use-kmap_local.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Subject: nilfs2: convert segment buffer to use kmap_local
Date: Mon, 22 Jan 2024 23:01:49 +0900

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>
---

 fs/nilfs2/segbuf.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/nilfs2/segbuf.c~nilfs2-convert-segment-buffer-to-use-kmap_local
+++ a/fs/nilfs2/segbuf.c
@@ -220,9 +220,9 @@ static void nilfs_segbuf_fill_in_data_cr
 		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);
 }
_

Patches currently in -mm which might be from konishi.ryusuke@gmail.com are

nilfs2-convert-recovery-logic-to-use-kmap_local.patch
nilfs2-convert-segment-buffer-to-use-kmap_local.patch
nilfs2-convert-nilfs_copy_buffer-to-use-kmap_local.patch
nilfs2-convert-metadata-file-common-code-to-use-kmap_local.patch
nilfs2-convert-sufile-to-use-kmap_local.patch
nilfs2-convert-persistent-object-allocator-to-use-kmap_local.patch
nilfs2-convert-dat-to-use-kmap_local.patch
nilfs2-move-nilfs_bmap_write-call-out-of-nilfs_write_inode_common.patch
nilfs2-do-not-acquire-rwsem-in-nilfs_bmap_write.patch
nilfs2-convert-ifile-to-use-kmap_local.patch
nilfs2-localize-highmem-mapping-for-checkpoint-creation-within-cpfile.patch
nilfs2-localize-highmem-mapping-for-checkpoint-finalization-within-cpfile.patch
nilfs2-localize-highmem-mapping-for-checkpoint-reading-within-cpfile.patch
nilfs2-remove-nilfs_cpfile_getput_checkpoint.patch
nilfs2-convert-cpfile-to-use-kmap_local.patch