From: Jens Axboe <axboe@kernel.dk>
To: Christoph Hellwig <hch@infradead.org>
Cc: linux-fsdevel@vger.kernel.org, linux-aio@kvack.org,
linux-block@vger.kernel.org, hch@lst.de, viro@zeniv.linux.org.uk
Subject: Re: [PATCH 16/22] aio: add support for submission/completion rings
Date: Wed, 2 Jan 2019 13:32:52 -0700 [thread overview]
Message-ID: <ff1d6ba7-e99f-a6e4-e3f8-aacb114befed@kernel.dk> (raw)
In-Reply-To: <91c8d717-37ab-9696-ff41-700f339a1960@kernel.dk>
On 1/2/19 9:28 AM, Jens Axboe wrote:
>> We'd much rather allocate a file descriptor using anon_inode_getfd
>> and operate on that. That also means we can just close that fd
>> instead of needing the magic io_destroy, and save all the checks for
>> which kind of FD we operate on.
>
> I'm not against doing something else for setup, but we still need some
> way of passing in information about what we want. Things like ring
> sizing. The actual rings we could mmap from known offsets if we went the
> anon route.
OK, so we could go the anon_inode_getfd() route and make it ioctls. Move
the gup stuff to mmap off that inode. I'll try and play with it a bit.
--
Jens Axboe
next prev parent reply other threads:[~2019-01-02 20:32 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-21 19:22 [PATCHSET v10] Support for polled and buffered aio (and more) Jens Axboe
2018-12-21 19:22 ` [PATCH 01/22] fs: add an iopoll method to struct file_operations Jens Axboe
2018-12-21 19:22 ` [PATCH 02/22] block: add bio_set_polled() helper Jens Axboe
2018-12-21 19:22 ` [PATCH 03/22] block: wire up block device iopoll method Jens Axboe
2018-12-21 19:22 ` [PATCH 04/22] block: use REQ_HIPRI_ASYNC for non-sync polled IO Jens Axboe
2018-12-21 19:25 ` Jens Axboe
2018-12-27 13:15 ` Christoph Hellwig
2018-12-27 20:22 ` Jens Axboe
2018-12-21 19:22 ` [PATCH 05/22] block: use bio_set_polled() helper for O_DIRECT Jens Axboe
2018-12-21 19:22 ` [PATCH 06/22] iomap: wire up the iopoll method Jens Axboe
2018-12-21 19:22 ` [PATCH 07/22] aio: add io_setup2() system call Jens Axboe
2018-12-27 13:55 ` Christoph Hellwig
2018-12-27 20:27 ` Jens Axboe
2018-12-21 19:22 ` [PATCH 08/22] aio: support for IO polling Jens Axboe
2018-12-27 13:55 ` Christoph Hellwig
2018-12-27 20:29 ` Jens Axboe
2018-12-21 19:22 ` [PATCH 09/22] aio: add submission side request cache Jens Axboe
2018-12-27 13:56 ` Christoph Hellwig
2018-12-27 20:31 ` Jens Axboe
2018-12-21 19:22 ` [PATCH 10/22] fs: add fget_many() and fput_many() Jens Axboe
2018-12-21 19:22 ` [PATCH 11/22] aio: use fget/fput_many() for file references Jens Axboe
2018-12-21 19:22 ` [PATCH 12/22] aio: split iocb init from allocation Jens Axboe
2018-12-21 19:22 ` [PATCH 13/22] aio: batch aio_kiocb allocation Jens Axboe
2018-12-21 19:22 ` [PATCH 14/22] aio: split old ring complete out from aio_complete() Jens Axboe
2018-12-21 19:22 ` [PATCH 15/22] aio: pass in user index to __io_submit_one() Jens Axboe
2018-12-21 19:22 ` [PATCH 16/22] aio: add support for submission/completion rings Jens Axboe
2018-12-27 13:47 ` Christoph Hellwig
2019-01-02 16:28 ` Jens Axboe
2019-01-02 20:32 ` Jens Axboe [this message]
2019-01-02 19:11 ` Jeff Moyer
2018-12-21 19:22 ` [PATCH 17/22] block: implement bio helper to add iter bvec pages to bio Jens Axboe
2018-12-21 19:22 ` [PATCH 18/22] aio: add support for pre-mapped user IO buffers Jens Axboe
2018-12-27 13:57 ` Christoph Hellwig
2018-12-21 19:22 ` [PATCH 19/22] aio: support kernel side submission for aio with SCQRING Jens Axboe
2018-12-27 13:57 ` Christoph Hellwig
2018-12-27 20:34 ` Jens Axboe
2018-12-21 19:22 ` [PATCH 20/22] aio: enable polling for IOCTX_FLAG_SQTHREAD Jens Axboe
2018-12-21 19:22 ` [PATCH 21/22] aio: utilize io_event->res2 for CQ ring Jens Axboe
2018-12-21 19:22 ` [PATCH 22/22] aio: add my copyright Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ff1d6ba7-e99f-a6e4-e3f8-aacb114befed@kernel.dk \
--to=axboe@kernel.dk \
--cc=hch@infradead.org \
--cc=hch@lst.de \
--cc=linux-aio@kvack.org \
--cc=linux-block@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).