[PATCH 03/15] nilfs2: convert nilfs_copy_buffer() to use kmap_local

From: Ryusuke Konishi
Date: Mon Jan 22 2024 - 09:03:12 EST


The routine nilfs_copy_buffer() that copies a block buffer still uses
the deprecated kmap_atomic(), so convert it to use kmap_local.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
---
fs/nilfs2/page.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 5c2eba1987bd..14e470fb8870 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -103,11 +103,11 @@ void nilfs_copy_buffer(struct buffer_head *dbh, struct buffer_head *sbh)
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;
--
2.34.1