From: Christoph Hellwig <hch@infradead.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: "Mohamed Abuelfotoh, Hazem" <abuehaze@amazon.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>
Subject: Re: [PATCH] block: use plug request list tail for one-shot backmerge attempt
Date: Wed, 11 Jun 2025 22:23:18 -0700 [thread overview]
Message-ID: <aEpkRgLRQdAhNwUP@infradead.org> (raw)
In-Reply-To: <aEpkIxvuTWgY5BnO@infradead.org>
On Wed, Jun 11, 2025 at 10:22:43PM -0700, Christoph Hellwig wrote:
> Maybe byte the bullet and just make the request lists doubly linked?
> Unlike the bio memory usage for request should not be quite as
> critical. Right now in my config the las cacheline in struct request
> only has a single 8 byte field anyway, so in practive we won't even
> bloat it.
Oh, and we actualy union rq_next with a list_head anyway..
next prev parent reply other threads:[~2025-06-12 5:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-11 14:53 [PATCH] block: use plug request list tail for one-shot backmerge attempt Jens Axboe
2025-06-11 16:55 ` Mohamed Abuelfotoh, Hazem
2025-06-11 17:53 ` Jens Axboe
2025-06-12 5:22 ` Christoph Hellwig
2025-06-12 5:23 ` Christoph Hellwig [this message]
2025-06-12 11:49 ` Jens Axboe
2025-06-12 11:56 ` Christoph Hellwig
2025-06-12 12:21 ` Jens Axboe
2025-06-12 12:23 ` Christoph Hellwig
2025-06-12 12:28 ` Jens Axboe
2025-06-16 13:11 ` Christoph Hellwig
2025-06-16 16:01 ` Caleb Sander Mateos
2025-06-17 2:36 ` Ming Lei
2025-06-17 4:39 ` Christoph Hellwig
2025-06-18 6:04 ` Hannes Reinecke
2025-06-12 12:27 ` Mohamed Abuelfotoh, Hazem
2025-06-24 10:45 ` Mohamed Abuelfotoh, Hazem
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