From nobody Mon Nov 25 10:27:34 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=suse.de ARC-Seal: i=1; a=rsa-sha256; t=1716491247; cv=none; d=zohomail.com; s=zohoarc; b=KCUxF2UpLveolvq9MPlcwsa3K5lYS+lHg5CjI142c1bQ6bLWjjiwJEl7cX0Z9Eifa43gMYBojp2d7gtMF5SSBx+KeD+YL7Hzhvuf/kUS03tuUygBeYjooeDIW8Bk2k7KkdyvUY6V0djW0bzc1jyO8hSP59kUD5grCj8SeqILN5w= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1716491247; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=vl2VTZZ7htmokSj3DhF+Hd+04nY+uwgKE6y9zGEpmro=; b=BvcjWXhsduJ8zx3rltyVmUZc+OV97d2n3QsFCoErhplTJbKYDS9984ES+bWKZuzXWNwX0mOyBwNfH6KeCth5JMIn8T/mG/E8l8El491J6Y8js+JxQwFG6w1/rnYYAgHd9QHMzayvFHWNFkhIuOhIG8tFxFnfxt/j2I1C+6BstAw= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1716491247663577.7188488281035; Thu, 23 May 2024 12:07:27 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sADmQ-0003Ff-AA; Thu, 23 May 2024 15:07:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sADlu-0002GY-5h for qemu-devel@nongnu.org; Thu, 23 May 2024 15:06:38 -0400 Received: from smtp-out2.suse.de ([195.135.223.131]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sADlq-0004KZ-Ua for qemu-devel@nongnu.org; Thu, 23 May 2024 15:06:37 -0400 Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 882DE20410; Thu, 23 May 2024 19:06:33 +0000 (UTC) Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id B004F13A6B; Thu, 23 May 2024 19:06:31 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id MOKiHbeTT2bUEQAAD6G6ig (envelope-from ); Thu, 23 May 2024 19:06:31 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1716491193; h=from:from:reply-to: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=vl2VTZZ7htmokSj3DhF+Hd+04nY+uwgKE6y9zGEpmro=; b=SKqit/j3lG+8BaKprymQ99mprirziwP2Kal5VikfXG5957aT+1BEx8efYzaAt3dirmLNaU FT2m8zTgBtdWdhxw4FaC3JwFBkzx2GSC8xp5FTUFPEDNXepRONAm6orY7Aj7gCXXNMapdr zBN9nRFOOd89Smen8+K4AlIj5wKeE9M= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1716491193; h=from:from:reply-to: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=vl2VTZZ7htmokSj3DhF+Hd+04nY+uwgKE6y9zGEpmro=; b=9NOZV9IvsJdEGJbF0v2c4WgQVUg3Z7r3WX6UCgCV3XpfYg1zJ2Qr3H+aR6N9Hs+HifM6jp gmT3QsiD2Z42U4DQ== Authentication-Results: smtp-out2.suse.de; dkim=pass header.d=suse.de header.s=susede2_rsa header.b="SKqit/j3"; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=9NOZV9Iv DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1716491193; h=from:from:reply-to: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=vl2VTZZ7htmokSj3DhF+Hd+04nY+uwgKE6y9zGEpmro=; b=SKqit/j3lG+8BaKprymQ99mprirziwP2Kal5VikfXG5957aT+1BEx8efYzaAt3dirmLNaU FT2m8zTgBtdWdhxw4FaC3JwFBkzx2GSC8xp5FTUFPEDNXepRONAm6orY7Aj7gCXXNMapdr zBN9nRFOOd89Smen8+K4AlIj5wKeE9M= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1716491193; h=from:from:reply-to: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=vl2VTZZ7htmokSj3DhF+Hd+04nY+uwgKE6y9zGEpmro=; b=9NOZV9IvsJdEGJbF0v2c4WgQVUg3Z7r3WX6UCgCV3XpfYg1zJ2Qr3H+aR6N9Hs+HifM6jp gmT3QsiD2Z42U4DQ== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: berrange@redhat.com, armbru@redhat.com, Peter Xu , Claudio Fontana , Jim Fehlig Subject: [PATCH v2 16/18] io/channel-file: Add direct-io support Date: Thu, 23 May 2024 16:05:46 -0300 Message-Id: <20240523190548.23977-17-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240523190548.23977-1-farosas@suse.de> References: <20240523190548.23977-1-farosas@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim,suse.de:email,imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_COUNT_TWO(0.00)[2]; DWL_DNSWL_BLOCKED(0.00)[suse.de:dkim]; RCPT_COUNT_FIVE(0.00)[6]; DKIM_TRACE(0.00)[suse.de:+] X-Rspamd-Action: no action X-Rspamd-Queue-Id: 882DE20410 X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spam-Score: -3.01 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=195.135.223.131; envelope-from=farosas@suse.de; helo=smtp-out2.suse.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @suse.de) X-ZM-MESSAGEID: 1716491247995100001 Content-Type: text/plain; charset="utf-8" Add support for setting/clearing the O_DIRECT flag on a file descriptor. This will be used for enabling O_DIRECT in the main migration channel when multifd is not in use. Signed-off-by: Fabiano Rosas --- include/io/channel-file.h | 8 ++++++++ io/channel-file.c | 25 +++++++++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/include/io/channel-file.h b/include/io/channel-file.h index d373a4e44d..ecb4450e8e 100644 --- a/include/io/channel-file.h +++ b/include/io/channel-file.h @@ -107,4 +107,12 @@ qio_channel_file_new_path(const char *path, mode_t mode, Error **errp); =20 +/** + * qio_channel_file_set_direct_io: + * @ioc: the QIOChannel object + * @enabled: the desired state of the O_DIRECT flag + * @errp: pointer to initialized error object + */ +void qio_channel_file_set_direct_io(QIOChannel *ioc, bool enabled, + Error **errp); #endif /* QIO_CHANNEL_FILE_H */ diff --git a/io/channel-file.c b/io/channel-file.c index 2ea8d08360..a89cd3a6d5 100644 --- a/io/channel-file.c +++ b/io/channel-file.c @@ -231,6 +231,31 @@ static int qio_channel_file_set_blocking(QIOChannel *i= oc, #endif } =20 +void qio_channel_file_set_direct_io(QIOChannel *ioc, bool enabled, Error *= *errp) +{ +#ifdef O_DIRECT + QIOChannelFile *fioc =3D QIO_CHANNEL_FILE(ioc); + int flags =3D fcntl(fioc->fd, F_GETFL); + + if (flags =3D=3D -1) { + error_setg_errno(errp, errno, "Unable to read file descriptor flag= s"); + return; + } + + if (enabled) { + flags |=3D O_DIRECT; + } else { + flags &=3D ~O_DIRECT; + } + + if (fcntl(fioc->fd, F_SETFL, flags) =3D=3D -1) { + error_setg_errno(errp, errno, "Unable to set file descriptor flags= "); + return; + } +#else + error_setg(errp, "System does not support O_DIRECT"); +#endif +} =20 static off_t qio_channel_file_seek(QIOChannel *ioc, off_t offset, --=20 2.35.3