Re: [PATCH 01/14] ext4: initialize the write hint in io_submit_init_bio

[Eric Biggers <ebiggers@kernel.org>]

On Thu, Feb 26, 2026 at 06:49:21AM -0800, Christoph Hellwig wrote:
> Make io_submit_init_bio complete by also initializing the write hint.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  fs/ext4/page-io.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
> index a8c95eee91b7..a3644d6cb65f 100644
> --- a/fs/ext4/page-io.c
> +++ b/fs/ext4/page-io.c
> @@ -416,6 +416,7 @@ void ext4_io_submit_init(struct ext4_io_submit *io,
>  }
>  
>  static void io_submit_init_bio(struct ext4_io_submit *io,
> +			       struct inode *inode,
>  			       struct buffer_head *bh)
>  {
>  	struct bio *bio;
> @@ -430,6 +431,7 @@ static void io_submit_init_bio(struct ext4_io_submit *io,
>  	bio->bi_end_io = ext4_end_bio;
>  	bio->bi_private = ext4_get_io_end(io->io_end);
>  	io->io_bio = bio;
> +	io->io_bio->bi_write_hint = inode->i_write_hint;
>  	io->io_next_block = bh->b_blocknr;
>  	wbc_init_bio(io->io_wbc, bio);
>  }

Maybe make this consistent with the other initializations by moving it
up a line and doing:

        bio->bi_write_hint = inode->i_write_hint;

- Eric