From: Jens Axboe <axboe@kernel.dk>
To: "Christoph Böhmwalder" <christoph.boehmwalder@linbit.com>
Cc: linux-block@vger.kernel.org,
Lars Ellenberg <lars.ellenberg@linbit.com>,
Philipp Reisner <philipp.reisner@linbit.com>,
linux-kernel@vger.kernel.org, drbd-dev@lists.linbit.com
Subject: Re: [PATCH] drbd: always set BLK_FEAT_STABLE_WRITES
Date: Wed, 11 Feb 2026 10:36:20 -0700 [thread overview]
Message-ID: <177083138009.157276.14024749739595076725.b4-ty@kernel.dk> (raw)
In-Reply-To: <20260205173928.3166880-2-christoph.boehmwalder@linbit.com>
On Thu, 05 Feb 2026 18:39:29 +0100, Christoph Böhmwalder wrote:
> DRBD requires stable pages because it may read the same bio data
> multiple times for local disk I/O and network transmission, and in
> some cases for calculating checksums.
>
> The BLK_FEAT_STABLE_WRITES flag is set when the device is first
> created, but blk_set_stacking_limits() clears it whenever a
> backing device is attached. In some cases the flag may be
> inherited from the backing device, but we want it to be enabled
> at all times.
>
> [...]
Applied, thanks!
[1/1] drbd: always set BLK_FEAT_STABLE_WRITES
commit: 2ebc8d600fb907fa6b1e7095c0b6d84fc47e91ea
Best regards,
--
Jens Axboe
prev parent reply other threads:[~2026-02-11 17:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-05 17:39 [PATCH] drbd: always set BLK_FEAT_STABLE_WRITES Christoph Böhmwalder
2026-02-06 6:43 ` Christoph Hellwig
2026-02-12 15:01 ` Christoph Böhmwalder
2026-02-13 6:05 ` Christoph Hellwig
2026-02-11 17:36 ` Jens Axboe [this message]
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