From: Christoph Hellwig <hch@lst.de>
To: Kanchan Joshi <joshi.k@samsung.com>
Cc: axboe@kernel.dk, hch@lst.de, io-uring@vger.kernel.org,
linux-nvme@lists.infradead.org, asml.silence@gmail.com,
ming.lei@redhat.com, mcgrof@kernel.org, shr@fb.com,
joshiiitr@gmail.com, anuj20.g@samsung.com, gost.dev@samsung.com
Subject: Re: [PATCH v4 1/5] fs,io_uring: add infrastructure for uring-cmd
Date: Thu, 5 May 2022 15:29:02 +0200 [thread overview]
Message-ID: <20220505132902.GA11853@lst.de> (raw)
In-Reply-To: <20220505060616.803816-2-joshi.k@samsung.com>
On Thu, May 05, 2022 at 11:36:12AM +0530, Kanchan Joshi wrote:
> + void (*uring_cmd)(struct io_uring_cmd *ioucmd, unsigned int issue_flags);
This adds an overly long line now.
> } __randomize_layout;
> +struct io_uring_cmd {
> + struct file *file;
> + const u8 *cmd;
> + /* callback to defer completions to task context */
> + void (*task_work_cb)(struct io_uring_cmd *cmd);
> + u32 cmd_op;
> + u8 pdu[32]; /* available inline for free use */
And with both unused and flags gone, pdu is unaligned again and will
crash the kernel on 64-bit architectures that do not support unaligned
loads and stores, so we'll need a "u32 __pad" here now.
next prev parent reply other threads:[~2022-05-05 13:29 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20220505061142epcas5p2c943572766bfd5088138fe0f7873c96c@epcas5p2.samsung.com>
2022-05-05 6:06 ` [PATCH v4 0/5] io_uring passthrough for nvme Kanchan Joshi
2022-05-05 6:06 ` [PATCH v4 1/5] fs,io_uring: add infrastructure for uring-cmd Kanchan Joshi
2022-05-05 12:52 ` Jens Axboe
2022-05-05 13:48 ` Ming Lei
2022-05-05 13:54 ` Jens Axboe
2022-05-05 13:29 ` Christoph Hellwig [this message]
2022-05-05 16:17 ` Jens Axboe
2022-05-05 17:04 ` Jens Axboe
2022-05-06 7:12 ` Kanchan Joshi
2022-05-10 14:23 ` Kanchan Joshi
2022-05-10 14:35 ` Jens Axboe
2022-05-05 6:06 ` [PATCH v4 2/5] block: wire-up support for passthrough plugging Kanchan Joshi
2022-05-05 14:21 ` Ming Lei
2022-05-05 6:06 ` [PATCH v4 3/5] nvme: refactor nvme_submit_user_cmd() Kanchan Joshi
2022-05-05 13:30 ` Christoph Hellwig
2022-05-05 18:37 ` Clay Mayers
2022-05-05 19:03 ` Jens Axboe
2022-05-05 19:11 ` Jens Axboe
2022-05-05 19:30 ` Clay Mayers
2022-05-05 19:31 ` Jens Axboe
2022-05-05 19:50 ` hch
2022-05-05 20:44 ` Jens Axboe
2022-05-06 5:56 ` hch
2022-05-05 6:06 ` [PATCH v4 4/5] nvme: wire-up uring-cmd support for io-passthru on char-device Kanchan Joshi
2022-05-05 13:33 ` Christoph Hellwig
2022-05-05 13:38 ` Jens Axboe
2022-05-05 13:42 ` Christoph Hellwig
2022-05-05 13:50 ` Jens Axboe
2022-05-05 17:23 ` Jens Axboe
2022-05-06 8:28 ` Christoph Hellwig
2022-05-06 13:37 ` Jens Axboe
2022-05-06 14:50 ` Christoph Hellwig
2022-05-06 14:57 ` Jens Axboe
2022-05-07 5:03 ` Christoph Hellwig
2022-05-07 12:53 ` Jens Axboe
2022-05-09 6:00 ` Christoph Hellwig
2022-05-09 12:52 ` Jens Axboe
2022-05-05 6:06 ` [PATCH v4 5/5] nvme: add vectored-io support for uring-cmd Kanchan Joshi
2022-05-05 18:20 ` [PATCH v4 0/5] io_uring passthrough for nvme Jens Axboe
2022-05-05 18:29 ` Jens Axboe
2022-05-06 6:42 ` Kanchan Joshi
2022-05-06 13:14 ` Jens Axboe
2022-05-10 7:20 ` Christoph Hellwig
2022-05-10 12:29 ` Jens Axboe
2022-05-10 14:21 ` Kanchan Joshi
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=20220505132902.GA11853@lst.de \
--to=hch@lst.de \
--cc=anuj20.g@samsung.com \
--cc=asml.silence@gmail.com \
--cc=axboe@kernel.dk \
--cc=gost.dev@samsung.com \
--cc=io-uring@vger.kernel.org \
--cc=joshi.k@samsung.com \
--cc=joshiiitr@gmail.com \
--cc=linux-nvme@lists.infradead.org \
--cc=mcgrof@kernel.org \
--cc=ming.lei@redhat.com \
--cc=shr@fb.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.