Messages in this thread | | | Date | Sat, 1 Apr 2023 21:22:20 +0800 | From | Ming Lei <> | Subject | Re: [PATCH V6 17/17] block: ublk_drv: apply io_uring FUSED_CMD for supporting zero copy |
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On Fri, Mar 31, 2023 at 07:55:30PM +0000, Bernd Schubert wrote: > On 3/30/23 13:36, Ming Lei wrote:
...
> > +static inline bool ublk_check_fused_buf_dir(const struct request *req, > > + unsigned int flags) > > +{ > > + flags &= IO_URING_F_FUSED_BUF; > > ~IO_URING_F_FUSED_BUF ?
IO_URING_F_FUSED_BUF is buffer direction mask, and we can get direction flags only in above way, so the above is correct.
Thanks, Ming
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