From: Christoph Hellwig <hch@infradead.org>
To: Demi Marie Obenour <demi@invisiblethingslab.com>
Cc: "Jens Axboe" <axboe@kernel.dk>,
"Marek Marczykowski-Górecki" <marmarek@invisiblethingslab.com>,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 1/7] block: Support creating a struct file from a block device
Date: Mon, 30 Jan 2023 00:08:23 -0800 [thread overview]
Message-ID: <Y9d692WEX/ZvBhXI@infradead.org> (raw)
In-Reply-To: <20230126033358.1880-2-demi@invisiblethingslab.com>
On Wed, Jan 25, 2023 at 10:33:53PM -0500, Demi Marie Obenour wrote:
> The newly added blkdev_get_file() function allows kernel code to create
> a struct file for any block device. The main use-case is for the
> struct file to be exposed to userspace as a file descriptor. A future
> patch will modify the DM_DEV_CREATE_CREATE ioctl to allow userspace to
> get a file descriptor to the newly created block device, avoiding nasty
> race conditions.
NAK. Do not add wierd side-way interfaces to the block layer.
next prev parent reply other threads:[~2023-01-30 8:10 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-26 3:33 [RFC PATCH 0/7] Allow race-free block device handling Demi Marie Obenour
2023-01-26 3:33 ` [dm-devel] " Demi Marie Obenour
2023-01-26 3:33 ` [RFC PATCH 1/7] block: Support creating a struct file from a block device Demi Marie Obenour
2023-01-30 8:08 ` Christoph Hellwig [this message]
2023-01-30 19:22 ` Demi Marie Obenour
2023-01-31 8:53 ` Christoph Hellwig
2023-01-31 16:27 ` Demi Marie Obenour
2023-02-01 7:45 ` Christoph Hellwig
2023-02-01 16:18 ` Demi Marie Obenour
2023-02-02 8:49 ` Ming Lei
2023-02-02 17:24 ` Demi Marie Obenour
2023-01-26 3:33 ` [RFC PATCH 2/7] Allow userspace to get an FD to a newly-created DM device Demi Marie Obenour
2023-01-26 3:33 ` [dm-devel] " Demi Marie Obenour
2023-01-26 3:33 ` [RFC PATCH 3/7] Implement diskseq checks in blkback Demi Marie Obenour
2023-01-26 3:33 ` [RFC PATCH 4/7] Increment diskseq when releasing a loop device Demi Marie Obenour
2023-01-30 8:09 ` Christoph Hellwig
2023-01-26 3:33 ` [RFC PATCH 6/7] Minor blkback cleanups Demi Marie Obenour
2023-01-26 3:33 ` [RFC PATCH 7/7] xen/blkback: Inform userspace that device has been opened Demi Marie Obenour
2023-02-02 16:50 ` [RFC PATCH 0/7] Allow race-free block device handling Mike Snitzer
2023-02-02 16:50 ` [dm-devel] " Mike Snitzer
2023-02-02 18:41 ` Demi Marie Obenour
2023-02-02 18:41 ` [dm-devel] " Demi Marie Obenour
2023-02-02 19:56 ` Mike Snitzer
2023-02-02 19:56 ` [dm-devel] " Mike Snitzer
2023-02-02 20:57 ` Demi Marie Obenour
2023-02-02 20:57 ` [dm-devel] " Demi Marie Obenour
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