Re: [PATCH v2 4/5] io_uring: add fsetxattr and setxattr support

[Pavel Begunkov <asml.silence@gmail.com>]

On 12/1/21 05:51, Stefan Roesch wrote:
> This adds support to io_uring for the fsetxattr and setxattr API.

io_uring part (4/5 and 5/5) look sane, just one comments below

  
> Signed-off-by: Stefan Roesch <shr@fb.com>
> ---
>   fs/io_uring.c                 | 174 ++++++++++++++++++++++++++++++++++
>   include/uapi/linux/io_uring.h |   6 +-
>   2 files changed, 179 insertions(+), 1 deletion(-)
> 
> diff --git a/fs/io_uring.c b/fs/io_uring.c
> index 568729677e25..9d977bf243fd 100644
> --- a/fs/io_uring.c
> +++ b/fs/io_uring.c
[...]
> +static int io_fsetxattr_prep(struct io_kiocb *req,
> +			const struct io_uring_sqe *sqe)
> +{
> +	if (!req->file)
> +		return -EBADF;

No need, io_init_req() will fail the request if it can't get a file.
Same for fgetxattr.


> +
> +	return __io_setxattr_prep(req, sqe, file_mnt_user_ns(req->file));
> +}
> +

-- 
Pavel Begunkov