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Wed, 28 Apr 2021 07:02:07 -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-555-Vljhfga3OemUna_uNBf8VQ-1; Wed, 28 Apr 2021 07:02:00 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A6871107ACC7; Wed, 28 Apr 2021 11:01:59 +0000 (UTC) Received: from dgilbert-t580.localhost (ovpn-115-35.ams2.redhat.com [10.36.115.35]) by smtp.corp.redhat.com (Postfix) with ESMTP id 53DF51002D71; Wed, 28 Apr 2021 11:01:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1619607723; 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=52sJo4zGbTiWFJ96lEj14we1NkkFAPEqKSP8AvKcADo=; b=L75c+H1xzDrI3+ukqztBRXwJMBogLWmOJkGLtuWl8M1Nub6Aww1XxFltkyGo80iuML8Nn0 iCgTklu+tj1BwxkTVCVuL1hdnLoN6LuUmop0G4JmOlfuLGlmW61yp1sCsK4zVXmzXabLZc ZC4WULlDQyNBaGYi1ZYQJ5ikEm4QPfk= X-MC-Unique: Vljhfga3OemUna_uNBf8VQ-1 From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, vgoyal@redhat.com, stefanha@redhat.com, groug@kaod.org Subject: [PATCH v3 17/26] DAX: virtiofsd: Perform an unmap on destroy Date: Wed, 28 Apr 2021 12:00:51 +0100 Message-Id: <20210428110100.27757-18-dgilbert@redhat.com> In-Reply-To: <20210428110100.27757-1-dgilbert@redhat.com> References: <20210428110100.27757-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dgilbert@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=dgilbert@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.22, 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_H4=0.001, RCVD_IN_MSPIKE_WL=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: virtio-fs@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Type: text/plain; charset="utf-8" From: "Dr. David Alan Gilbert" Force unmap all remaining dax cache entries on a destroy. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Stefan Hajnoczi --- tools/virtiofsd/passthrough_ll.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough= _ll.c index ed5b6c9e2d..600e102839 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -3129,6 +3129,20 @@ static void lo_destroy(void *userdata, struct fuse_s= ession *se) { struct lo_data *lo =3D (struct lo_data *)userdata; =20 + if (fuse_lowlevel_is_virtio(se)) { + VhostUserFSSlaveMsg *msg =3D g_malloc0(sizeof(VhostUserFSSlaveMsg)= + + sizeof(VhostUserFSSlaveMsgEnt= ry)); + + msg->count =3D 0; + msg->entries[0].len =3D ~(uint64_t)0; /* Special: means 'all' */ + msg->entries[0].c_offset =3D 0; + if (fuse_virtio_unmap(se, msg)) { + fuse_log(FUSE_LOG_ERR, "%s: unmap during destroy failed\n", + __func__); + } + g_free(msg); + } + pthread_mutex_lock(&lo->mutex); while (true) { GHashTableIter iter; --=20 2.31.1