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 C60D433FD for ; Thu, 6 Mar 2025 13:48:47 +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=1741268929; cv=none; b=lU0Z+wK5I1XXnMqj1zyT1h5vRSDbel89YRJzifltgRle4Kf8WMOkUsD3rUIDrhZ4pzg/iLNXzEAzLjdihH8fLBhkDEdRkQ7AsFVHzZ8LE5ktB2rf3bV5ICCl3dDCeo6tRsWI6Wq3AccVVl6JQ0mkR4b1S8aYiFxinbsQmb/9+D8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741268929; c=relaxed/simple; bh=+o6WkqIB49XPWTR3gth0aOKsZCX8yZfrhX1MeQVcCuI=; h=From:In-Reply-To:References:To:Cc:Subject:MIME-Version: Content-Type:Date:Message-ID; b=HluMFgBMkyLsbf8eZLAw2J+HpUcXOsfAmTUfLj408ZZ+ZhBO37yqHsFQUFtq3pgfffmMw6NiPHhj3lD0p3MLZz1rWcq96LgU4tn8sdPsxqnwzGUhUCkWE26TnM/mBJWo3AnrN0p0Wqfi10MJW/PL9D9hr+DvcNWstevs2irBIyI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none 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=jKi0mvBo; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none 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="jKi0mvBo" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1741268926; 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: in-reply-to:in-reply-to:references:references; bh=UOJn3sLvhIcVBzGvoXPLfCNWG4W5Sr8ulGI85ofafqY=; b=jKi0mvBoTDRqHek1IiwWgdREao/WOFyy6U363uuehv8LaB+q2i+yMkN8MT/4wC93jPgTSc 8nXm6C9ZK3ItQ439rkaPkBWm9od6maPqlS9khsmN2XbRHU4WrSIx1Ke54M6fWk5XS3y1ik WhvggFu4bRTeQGCtugw9RcDXxGafQfo= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-303-wRgdpZh3OQWfdXVYjM5HZg-1; Thu, 06 Mar 2025 08:48:37 -0500 X-MC-Unique: wRgdpZh3OQWfdXVYjM5HZg-1 X-Mimecast-MFC-AGG-ID: wRgdpZh3OQWfdXVYjM5HZg_1741268916 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (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-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 3C1921956053; Thu, 6 Mar 2025 13:48:36 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.44.32.200]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 50DE11955DCE; Thu, 6 Mar 2025 13:48:31 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: References: <3989572.1734546794@warthog.procyon.org.uk> <4170997.1741192445@warthog.procyon.org.uk> <4177847.1741206158@warthog.procyon.org.uk> To: Alex Markuze Cc: dhowells@redhat.com, Viacheslav Dubeyko , Ilya Dryomov , Xiubo Li , Jeff Layton , ceph-devel@vger.kernel.org, netfs@lists.linux.dev, linux-fsdevel@vger.kernel.org, Gregory Farnum , Venky Shankar , Patrick Donnelly Subject: Re: Is EOLDSNAPC actually generated? -- Re: Ceph and Netfslib Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <127229.1741268910.1@warthog.procyon.org.uk> Date: Thu, 06 Mar 2025 13:48:30 +0000 Message-ID: <127230.1741268910@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Alex Markuze wrote: > Yes, that won't work on sparc/parsic/alpha and mips. > Both the Block device server and the meta data server may return a > code 85 to a client's request. > Notice in this example that the rc value is taken from the request > struct which in turn was serialised from the network. > > static void ceph_aio_complete_req(struct ceph_osd_request *req) > { > int rc = req->r_result; The term "ewww" springs to mind :-) Does that mean that EOLDSNAPC can arrive by this function? David