From nobody Sun Oct 5 19:25:06 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1632780664043758.8189029389695; Mon, 27 Sep 2021 15:11:04 -0700 (PDT) Received: from localhost ([::1]:35654 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mUypy-0002rT-QI for importer@patchew.org; Mon, 27 Sep 2021 18:11:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54628) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mUybl-0002j7-Qp for qemu-devel@nongnu.org; Mon, 27 Sep 2021 17:56:23 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:34631) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mUybh-0002yy-6o for qemu-devel@nongnu.org; Mon, 27 Sep 2021 17:56:20 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-97-EFklq3HmMlGbWrNtvPru_w-1; Mon, 27 Sep 2021 17:56:15 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 02ED6801E72; Mon, 27 Sep 2021 21:56:14 +0000 (UTC) Received: from blue.redhat.com (ovpn-113-87.phx2.redhat.com [10.3.113.87]) by smtp.corp.redhat.com (Postfix) with ESMTP id F2F2E5D9D5; Mon, 27 Sep 2021 21:56:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1632779776; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nYcY8/gPpGTrFbLOdoGvl9L1U7nOty+5ARQWlo+lWf0=; b=ERpVzBVSzluS3HmPVTfVk3oVYmHHJJPqpR1l/N/6wvHcQb+wvoDa53XcR9tH2HGcxvPkex 7lUYiKq5kUQ/qRMfzF32RM/2UVEgRIPf0JGr7vNRaR/aZKPTe2dDSn2gMb1CZ9k0wd+aFg qHj03RjqCD9MrfF8NaOz5Q2LbIWWbXY= X-MC-Unique: EFklq3HmMlGbWrNtvPru_w-1 From: Eric Blake To: qemu-devel@nongnu.org Subject: [PULL 12/20] block/io: allow 64bit discard requests Date: Mon, 27 Sep 2021 16:55:37 -0500 Message-Id: <20210927215545.3930309-13-eblake@redhat.com> In-Reply-To: <20210927215545.3930309-1-eblake@redhat.com> References: <20210927215545.3930309-1-eblake@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eblake@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=eblake@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , Kevin Wolf , Vladimir Sementsov-Ogievskiy , "open list:Block I/O path" , Hanna Reitz , Stefan Hajnoczi Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1632780665706100001 Content-Type: text/plain; charset="utf-8" From: Vladimir Sementsov-Ogievskiy Now that all drivers are updated by the previous commit, we can drop the last limiter on pdiscard path: INT_MAX in bdrv_co_pdiscard(). Now everything is prepared for implementing incredibly cool and fast big-discard requests in NBD and qcow2. And any other driver which wants it of course. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Eric Blake Message-Id: <20210903102807.27127-12-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake --- block/io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/io.c b/block/io.c index 3846e2ed961b..18d345a87af3 100644 --- a/block/io.c +++ b/block/io.c @@ -3104,7 +3104,7 @@ int coroutine_fn bdrv_co_pdiscard(BdrvChild *child, i= nt64_t offset, goto out; } - max_pdiscard =3D QEMU_ALIGN_DOWN(MIN_NON_ZERO(bs->bl.max_pdiscard, INT= _MAX), + max_pdiscard =3D QEMU_ALIGN_DOWN(MIN_NON_ZERO(bs->bl.max_pdiscard, INT= 64_MAX), align); assert(max_pdiscard >=3D bs->bl.request_alignment); --=20 2.31.1