The patch titled
Subject: nilfs2: convert nilfs_copy_buffer() to use kmap_local
has been added to the -mm mm-nonmm-unstable branch. Its filename is
nilfs2-convert-nilfs_copy_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-nilfs_copy_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@xxxxxxxxx>
Subject: nilfs2: convert nilfs_copy_buffer() to use kmap_local
Date: Mon, 22 Jan 2024 23:01:50 +0900
The routine nilfs_copy_buffer() that copies a block buffer still uses the
deprecated kmap_atomic(), so convert it to use kmap_local.
Link: https://lkml.kernel.org/r/20240122140202.6950-4-konishi.ryusuke@xxxxxxxxx
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/nilfs2/page.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/fs/nilfs2/page.c~nilfs2-convert-nilfs_copy_buffer-to-use-kmap_local
+++ a/fs/nilfs2/page.c
@@ -103,11 +103,11 @@ void nilfs_copy_buffer(struct buffer_hea
struct page *spage = sbh->b_page, *dpage = dbh->b_page;
struct buffer_head *bh;
- kaddr0 = kmap_atomic(spage);
- kaddr1 = kmap_atomic(dpage);
+ kaddr0 = kmap_local_page(spage);
+ kaddr1 = kmap_local_page(dpage);
memcpy(kaddr1 + bh_offset(dbh), kaddr0 + bh_offset(sbh), sbh->b_size);
- kunmap_atomic(kaddr1);
- kunmap_atomic(kaddr0);
+ kunmap_local(kaddr1);
+ kunmap_local(kaddr0);
dbh->b_state = sbh->b_state & NILFS_BUFFER_INHERENT_BITS;
dbh->b_blocknr = sbh->b_blocknr;
_
Patches currently in -mm which might be from konishi.ryusuke@xxxxxxxxx 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
