On Fri, Dec 16, 2022 at 08:53:42PM +0000, Matthew Wilcox (Oracle) wrote:
> Remove this open-coded call to kmap()/memset()/kunmap() with the
> higher-level abstraction folio_zero_range().
>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
LGTM
Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
> ---
> fs/reiserfs/tail_conversion.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
> index a61bca73c45f..ca36bb88b8b0 100644
> --- a/fs/reiserfs/tail_conversion.c
> +++ b/fs/reiserfs/tail_conversion.c
> @@ -151,11 +151,11 @@ int direct2indirect(struct reiserfs_transaction_handle *th, struct inode *inode,
> * out the unused part of the block (it was not up to date before)
> */
> if (up_to_date_bh) {
> - unsigned pgoff =
> - (tail_offset + total_tail - 1) & (PAGE_SIZE - 1);
> - char *kaddr = kmap_atomic(up_to_date_bh->b_page);
> - memset(kaddr + pgoff, 0, blk_size - total_tail);
> - kunmap_atomic(kaddr);
> + size_t start = offset_in_folio(up_to_date_bh->b_folio,
> + (tail_offset + total_tail - 1));
> +
> + folio_zero_range(up_to_date_bh->b_folio, start,
> + blk_size - total_tail);
> }
>
> REISERFS_I(inode)->i_first_direct_byte = U32_MAX;
> --
> 2.35.1
>
