Switch from the deprecated kmap() to kmap_local_folio(). For the
kunmap_local(), I subtract off 'chars' to prevent the possibility that
p has wrapped into the next page.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/reiserfs/inode.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 41c0a785e9ab..0ca2d439510a 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -390,8 +390,7 @@ static int _get_block_create_0(struct inode *inode, sector_t block,
* sure we need to. But, this means the item might move if
* kmap schedules
*/
- p = (char *)kmap(bh_result->b_page);
- p += offset;
+ p = kmap_local_folio(bh_result->b_folio, offset);
memset(p, 0, inode->i_sb->s_blocksize);
do {
if (!is_direct_le_ih(ih)) {
@@ -439,8 +438,8 @@ static int _get_block_create_0(struct inode *inode, sector_t block,
ih = tp_item_head(&path);
} while (1);
- flush_dcache_page(bh_result->b_page);
- kunmap(bh_result->b_page);
+ flush_dcache_folio(bh_result->b_folio);
+ kunmap_local(p - chars);
finished:
pathrelse(&path);
--
2.35.1
