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From: Yang Xiuwei <yangxiuwei@kylinos.cn>
To: x-professor@outlook.com
Cc: mkp@kernel.org, James.Bottomley@HansenPartnership.com,
	linux-scsi@vger.kernel.org, bvanassche@acm.org, axboe@kernel.dk,
	io-uring@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 6/6] scsi: bsg: release io_uring requests in end-I/O
Date: Tue, 27 Oct 2026 17:35:28 +0800	[thread overview]
Message-ID: <20261027093528.477408-1-yangxiuwei@kylinos.cn> (raw)
In-Reply-To: <20261026094010.1324076-1-yangxiuwei@kylinos.cn>

Hi Yingjie,

On Mon, 26 Oct 2026, Yang Xiuwei wrote:
> Tested in a VM: INQUIRY batch latency went from 30us to 42us with this
> allocation.

For reference: scsi_mq_init_request() already allocates sense_buffer
from scsi_sense_cache. A second buffer from that cache, bsg_sense, can
hold the copy.

Thanks,
Yang Xiuwei


  reply	other threads:[~2026-10-27  9:35 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-26  8:29 [PATCH v2 0/6] scsi: release completed passthrough requests before user copyback Yingjie Wang
2026-10-26  8:29 ` [PATCH v2 1/6] scsi: core: release SG_IO request " Yingjie Wang
2026-10-26  8:29 ` [PATCH v2 2/6] scsi: core: release legacy ioctl " Yingjie Wang
2026-10-26  8:29 ` [PATCH v2 3/6] scsi: sr: release CDDA " Yingjie Wang
2026-10-26  8:29 ` [PATCH v2 4/6] scsi: bsg: release synchronous " Yingjie Wang
2026-10-26  8:29 ` [PATCH v2 5/6] scsi: bsg: clear io_uring sense length on copy failure Yingjie Wang
2026-10-26  9:40   ` Yang Xiuwei
2026-10-26  8:29 ` [PATCH v2 6/6] scsi: bsg: release io_uring requests in end-I/O Yingjie Wang
2026-10-26  9:40   ` Yang Xiuwei
2026-10-27  9:35     ` Yang Xiuwei [this message]
2026-10-29 16:39       ` Yingjie Wang
2026-10-26 15:56   ` Bart Van Assche

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