Re: [PATCH v5 03/10] fs: Initial atomic write support

Jens Axboe
2024-03-08T16:34:31Z

On 2/26/24 10:36 AM, John Garry wrote:
> diff --git a/io_uring/rw.c b/io_uring/rw.c
> index d5e79d9bdc71..099dda3ff151 100644
> --- a/io_uring/rw.c
> +++ b/io_uring/rw.c
> @@ -719,7 +719,7 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode)
> struct kiocb *kiocb = &rw->kiocb;
> struct io_ring_ctx *ctx = req->ctx;
> struct file *file = req->file;
> - int ret;
> + int ret, rw_type = (mode == FMODE_WRITE) ? WRITE : READ;
>
> if (unlikely(!file || !(file->f_mode & mode)))
> return -EBADF;
> @@ -728,7 +728,7 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode)
> req->flags |= io_file_get_flags(file);
>
> kiocb->ki_flags = file->f_iocb_flags;
> - ret = kiocb_set_rw_flags(kiocb, rw->flags);
> + ret = kiocb_set_rw_flags(kiocb, rw->flags, rw_type);
> if (unlikely(ret))
> return ret;
> kiocb->ki_flags |= IOCB_ALLOC_CACHE;

Not sure why you took the lazy way out here rather than just pass it in,
now there's another branhc in the hot path. NAK.

--
Jens Axboe