Re: [PATCH 09/12] xfs: flag files as supporting buffered async reads

Darrick J. Wong
2020-05-28T17:56:06Z

On Tue, May 26, 2020 at 01:51:20PM -0600, Jens Axboe wrote:
> XFS uses generic_file_read_iter(), which already supports this.
>
> Signed-off-by: Jens Axboe <axboe@kernel.dk>

Er... I guess that looks ok? Assuming you've done enough qa on
io_uring to be able to tell if this breaks anything, since touching the
mm always feels murky to me:

Acked-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
> fs/xfs/xfs_file.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
> index 4b8bdecc3863..97f44fbf17f2 100644
> --- a/fs/xfs/xfs_file.c
> +++ b/fs/xfs/xfs_file.c
> @@ -1080,7 +1080,7 @@ xfs_file_open(
> return -EFBIG;
> if (XFS_FORCED_SHUTDOWN(XFS_M(inode->i_sb)))
> return -EIO;
> - file->f_mode |= FMODE_NOWAIT;
> + file->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
> return 0;
> }
>
> --
> 2.26.2
>