From: Christoph Hellwig <hch@lst.de>
To: Mike Snitzer <snitzer@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, dm-devel@redhat.com,
Linus Torvalds <torvalds@linux-foundation.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [dm-devel] enforce read-only state at the block layer
Date: Wed, 7 Jun 2023 07:33:08 +0200 [thread overview]
Message-ID: <20230607053308.GA20390@lst.de> (raw)
In-Reply-To: <ZH9alEbuNxHNwYYe@redhat.com>
> Not sure of a crafty hack to workaround. Hopefully 5 year old lvm2
> remains tightly coupled to kernels of the same vintage and we get
> lucky moving forward.
>
> So I agree with Linus, worth trying this simple change again and
> seeing if there is fallout. Revert/worry about it again as needed.
I'm actually looking into implementing Linus' suggestion now and
track in the block_device if it has ever been opened for writing.
--
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WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Mike Snitzer <snitzer@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
Linus Torvalds <torvalds@linux-foundation.org>,
dm-devel@redhat.com, linux-block@vger.kernel.org
Subject: Re: enforce read-only state at the block layer
Date: Wed, 7 Jun 2023 07:33:08 +0200 [thread overview]
Message-ID: <20230607053308.GA20390@lst.de> (raw)
In-Reply-To: <ZH9alEbuNxHNwYYe@redhat.com>
> Not sure of a crafty hack to workaround. Hopefully 5 year old lvm2
> remains tightly coupled to kernels of the same vintage and we get
> lucky moving forward.
>
> So I agree with Linus, worth trying this simple change again and
> seeing if there is fallout. Revert/worry about it again as needed.
I'm actually looking into implementing Linus' suggestion now and
track in the block_device if it has ever been opened for writing.
next prev parent reply other threads:[~2023-06-07 5:33 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-01 7:28 [dm-devel] enforce read-only state at the block layer Christoph Hellwig
2023-06-01 7:28 ` Christoph Hellwig
2023-06-01 7:28 ` [dm-devel] [PATCH 1/3] block: remove a duplicate bdev_read_only declaration Christoph Hellwig
2023-06-01 7:28 ` Christoph Hellwig
2023-06-01 7:28 ` [dm-devel] [PATCH 2/3] block: simplify the check for flushes in bio_check_ro Christoph Hellwig
2023-06-01 7:28 ` Christoph Hellwig
2023-06-01 7:28 ` [dm-devel] [PATCH 3/3] block: fail writes to read-only devices Christoph Hellwig
2023-06-01 7:28 ` Christoph Hellwig
2023-06-02 1:02 ` [dm-devel] " Linus Torvalds
2023-06-02 1:02 ` Linus Torvalds
2023-06-02 15:41 ` [dm-devel] " Christoph Hellwig
2023-06-02 15:41 ` Christoph Hellwig
2023-06-02 15:56 ` [dm-devel] " Linus Torvalds
2023-06-02 15:56 ` Linus Torvalds
2023-06-06 16:13 ` [dm-devel] " Mike Snitzer
2023-06-06 16:13 ` Mike Snitzer
2023-06-06 16:11 ` [dm-devel] enforce read-only state at the block layer Mike Snitzer
2023-06-06 16:11 ` Mike Snitzer
2023-06-07 5:33 ` Christoph Hellwig [this message]
2023-06-07 5:33 ` Christoph Hellwig
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