From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 061A02FD7CA for ; Tue, 2 Dec 2025 12:20:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764678019; cv=none; b=h0QHBmObIilXczFpOgGxFEv/6pwqf/Vf1ihiuJMEhjp25xCZEeSM8k52dU9R6HtaN8Lzntzo29b7DZEGf+/vGAkg4+ijODbGmwQPi+8gsEGxvkff6NXhx0FwwKr7dyLU/10lbQNEZU7X+rHluTqFZjI3yKiXcK+JKN/TIEV7pDc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764678019; c=relaxed/simple; bh=pAYUDsG9fA1ZsDM39eaeEM9va1rM1BvMAX2tJ37Yn+A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=psHXo8z4bvIgUDzzleysC3SSf9YaU9yDigmi/KNVyFFPJ+1O0swaDQQhCRlsrJ4Vqa32f9+42EXu1ayb+EET58VQUu+Os05wbZyCtSeFOwAXflZmbDb7DsUIQTJuZ3UDSVl+04vM+R0tii8EbyjiW5ImnlqpzJyqBHOqfjSkzTo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=brZBXveJ; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="brZBXveJ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1764678016; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=sNeO6+o17xw32M6GMEwWVX0VaRniG8mDdEriDfxdHlA=; b=brZBXveJ8WXSY2xZf0fTbn099BC3MCe8CpKfgdO1zrb12l9XedLRqLDZeGCJRjARRTL6lg O+A9GRRKD5O5KKYCX+1yT3aFC8JLQTbRRVDaQfKrJIHkK2WN1aMx9/O2yUPgrMYpKRM6Hk QuZnyMDGxMBbDRrB27RIroXgJ7S83Rk= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-481-iBGytWPcMFOqzYC2SXVX-Q-1; Tue, 02 Dec 2025 07:20:11 -0500 X-MC-Unique: iBGytWPcMFOqzYC2SXVX-Q-1 X-Mimecast-MFC-AGG-ID: iBGytWPcMFOqzYC2SXVX-Q_1764678010 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id EC68B1800561; Tue, 2 Dec 2025 12:20:09 +0000 (UTC) Received: from localhost (unknown [10.72.116.20]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id F1CDA1800367; Tue, 2 Dec 2025 12:20:08 +0000 (UTC) From: Ming Lei To: Jens Axboe , linux-block@vger.kernel.org Cc: Caleb Sander Mateos , Uday Shankar , Ming Lei Subject: [PATCH V5 02/21] ublk: prepare for not tracking task context for command batch Date: Tue, 2 Dec 2025 20:18:56 +0800 Message-ID: <20251202121917.1412280-3-ming.lei@redhat.com> In-Reply-To: <20251202121917.1412280-1-ming.lei@redhat.com> References: <20251202121917.1412280-1-ming.lei@redhat.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 batch io is designed to be independent of task context, and we will not track task context for batch io feature. Reviewed-by: Caleb Sander Mateos Signed-off-by: Ming Lei --- drivers/block/ublk_drv.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index 7219ccbd6364..771d591f3158 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -2254,7 +2254,10 @@ static int __ublk_fetch(struct io_uring_cmd *cmd, struct ublk_device *ub, ublk_fill_io_cmd(io, cmd); - WRITE_ONCE(io->task, get_task_struct(current)); + if (ublk_dev_support_batch_io(ub)) + WRITE_ONCE(io->task, NULL); + else + WRITE_ONCE(io->task, get_task_struct(current)); ublk_mark_io_ready(ub); return 0; -- 2.47.0