From: Jens Axboe <[email protected]>
To: Christoph Hellwig <[email protected]>
Cc: Jann Horn <[email protected]>,
Andreas Smas <[email protected]>,
linux-fsdevel <[email protected]>,
io-uring <[email protected]>
Subject: Re: io_uring, IORING_OP_RECVMSG and ancillary data
Date: Mon, 27 Apr 2020 14:13:18 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On 4/27/20 2:10 PM, Christoph Hellwig wrote:
> On Mon, Apr 27, 2020 at 02:08:25PM -0600, Jens Axboe wrote:
>> Possibly... Totally untested, maybe I forgot to mention that :-)
>> I'll check.
>>
>> The question was more "in principle" if this was a viable approach. The
>> whole cmsg_type and cmsg_level is really a mess.
>
> FYI, I have a series in the works to sort out the set_fs and
> casting to/from __user mess around msg_control. It needs a little
> more work, but hopefully I can find some time the next days.
That'd be great - looking at it right now, I'd need to refactor
____sys_sendmsg (and ditto receive side) to poke at cmsg before
allowing us to proceed. I'll wait for you to post your series and
base it on top of that, if appropriate.
--
Jens Axboe
next prev parent reply other threads:[~2020-04-27 20:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAObFT-S27KXFGomqPZdXA8oJDe6QxmoT=T6CBgD9R9UHNmakUQ@mail.gmail.com>
2020-04-25 20:23 ` io_uring, IORING_OP_RECVMSG and ancillary data Jens Axboe
2020-04-27 18:56 ` Andreas Smas
2020-04-27 19:20 ` Jann Horn
2020-04-27 19:29 ` Jens Axboe
2020-04-27 19:53 ` Jens Axboe
2020-04-27 20:03 ` Jann Horn
2020-04-27 20:08 ` Jens Axboe
2020-04-27 20:10 ` Christoph Hellwig
2020-04-27 20:13 ` Jens Axboe [this message]
2020-05-28 18:42 ` Andreas Smas
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