From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=220.197.31.3 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793093759; b=CJnNugBcK9gukNeeU7v80Ryq4ucpPEssSseLWyrGYQLD/CysKx/Ienic4zNbkbNQGO8E 5FnQ38ZIEWv2Zs8JN80gANHIdvKP335MDgYKw3t0sir8MmzcDN9eQHhrSHHbnRypsjCnp 3w8ZvVl3uKU2CYqnCuwfRFh2Lraa6oZqgsJ+8zTZ1HJkWHq2HdCIR8wwwQAgaoxY5ky8+ YbKuI3bDkLXmc28MStfZ0wfHSHcOhgKJNXQE8wNiAzY3YP84Oz2tAxjrcYS+2c2QfRn5p 4RxUy22Q5GH2yC/FBqUzdLsO5HGla2VK0sVpyxnYjK9kfcpgl93SNUbFlU8txZ2A3kA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793093759; h=DMARC-Filter:DKIM-Signature:Received:From:To:Cc:Subject:Date: Message-Id:X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding:X-CM-TRANSID:X-Coremail-Antispam:Sender: X-CM-SenderInfo; bh=7pfwiZQ1QMUC3lRm80MKhMN/yJv3QIp3Bl6CJz+OVbQ=; b=XWu3e8XlqvUryJLCYuX85Kf8znrJ1i+5lZvE6IGbE/cLGBc44eqV5T5eRhbQKPipYxjl /3XxWeeTv9qNx4+15Eb3JCMDwbsGJwR7b12KuvR42tYJuxFu14ehED3ZxFnqck4r/9Em3 N5Q4zODlynYthXezro1pFADAvRCbyDIv64INk5KZPV4j/IEYfk3UWyQaycUSBuzJKaIg9 me0iUrtUI+kdCjXwZgYj08lC3ZuweepCd39nDsYxBuofLkRUrssuqYqlQX3NWHIuwlD/3 jMiJWKz7m6gfDONOqipkVJr8NcA/v/7j9Pp1wUrwE5ooB2wBjypbD1CE23EmSHHbUAA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=kylinos.cn; spf=pass smtp.mailfrom=163.com; dkim=pass header.d=163.com header.i=@163.com header.a=rsa-sha256 header.s=s110527 header.b=dtW0xXrW; arc=none smtp.remote-ip=220.197.31.3 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 68E90606A31A; Tue, 27 Oct 2026 09:35:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 68E90606A31A Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256 header.s=s110527 header.b=dtW0xXrW DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=7p fwiZQ1QMUC3lRm80MKhMN/yJv3QIp3Bl6CJz+OVbQ=; b=dtW0xXrWYN3Yw8gcEw 2932+o0gvyWdZNQKkjT3Err0PtvWoBi8uV29130TVlg1/NEEwLEfM8yf+a5UsZDA A2mWLMDEwdJWtB6v5CG/Gcw2tQtvtUHv/OL3t1CY3tJLQKenUqtMwJ1o9Eexg/Xt nbobo0iuQ6UYvi+GGukMEVBVM= Received: from localhost.localdomain (unknown []) by gzsmtp1 (Coremail) with SMTP id PCgvCgD3n4FgcOBqzyd0CA--.7090S2; Tue, 27 Oct 2026 17:35:30 +0800 (CST) From: Yang Xiuwei 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 Message-Id: <20261027093528.477408-1-yangxiuwei@kylinos.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20261026094010.1324076-1-yangxiuwei@kylinos.cn> References: <8f30e238d2b169702308303687e9504c7513ecc8.1793003363.git.x-professor@outlook.com> <20261026094010.1324076-1-yangxiuwei@kylinos.cn> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:PCgvCgD3n4FgcOBqzyd0CA--.7090S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UbIYCTnIWIevJa73UjIFyTuYvjxUY5r4UUUUU Sender: yangxiuwei2025@163.com X-CM-SenderInfo: p1dqw55lxzvxisqskqqrwthudrp/xtbC6gIHl2rgcGLCDwAA3t 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