From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 739FA1F5F6 for ; Thu, 25 Jan 2024 15:07:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706195234; cv=none; b=GrDMVRpqT1giZSHJ+JrmKXMfwYP7Kpt9UUMTwn5QujEMLkzNyEEtKhgHtN2klTAENLj1cShEDcd1IfXE9rZEQbpN51FnQvnwKf1C8ZNhpJBBfXh7imeHgmakB+K2U0EfbH7eCaEpvNYNtE+i4Xi3ChJoC4GB4mLsW1cHSw9Bmx8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706195234; c=relaxed/simple; bh=WNIz1pM1nip4d96uZ6FyoK3kb+lo8a/ChWuGHglRprg=; h=From:In-Reply-To:References:To:Cc:Subject:MIME-Version: Content-Type:Date:Message-ID; b=pek2TAc4M0wKtBVD0XBNc13qIlcTO+T5FvGMKok241MpY+PtTe1+YCVzBfRAenA+02/1w0t93slIN7AWXQhsW3Qms2SaqnTUgkbbrPidWAPgZ4VFd+7+L56y1EoPQ+tPrFfKR9HNGN4kUeTrPG/s2vPOMmoZtLlg73Bx8GZZrKQ= 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=L0Jdqtpq; arc=none smtp.client-ip=170.10.133.124 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="L0Jdqtpq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1706195232; 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=oAZlY5FFShoqY2jzLb0BK5KQwuTtjmp0YybmXSZUEAw=; b=L0Jdqtpq9WuhOjZQulyXgdl4RNpVQAT0C24jPvlhgjGKzkJY/Y7f9m3SoxqsfslRo+r59d uB3mluXP6iurR7SJuB98NBts9dQimzxpjCYXhI5QM5eqL402zMBEpIN0euaE6CwSnHMAAr 75FTvR0668uJkSHvE4t/ghGXyy2y5iw= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-216-c9iSLK8_Pc6WcUKnO_R9ng-1; Thu, 25 Jan 2024 10:07:07 -0500 X-MC-Unique: c9iSLK8_Pc6WcUKnO_R9ng-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (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 mimecast-mx02.redhat.com (Postfix) with ESMTPS id E9553381AE4A; Thu, 25 Jan 2024 15:07:06 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.245]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3DE6F1121306; Thu, 25 Jan 2024 15:07:05 +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: <520668.1706191347@warthog.procyon.org.uk> To: Benjamin Coddington Cc: dhowells@redhat.com, Gao Xiang , Jeff Layton , Christian Brauner , Matthew Wilcox , Eric Sandeen , v9fs@lists.linux.dev, linux-afs@lists.infradead.org, ceph-devel@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Roadmap for netfslib and local caching (cachefiles) 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: <524117.1706195224.1@warthog.procyon.org.uk> Date: Thu, 25 Jan 2024 15:07:04 +0000 Message-ID: <524118.1706195224@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.3 Benjamin Coddington wrote: > > NFS. NFS at the very least needs to be altered to give up the use of > > PG_private_2. > > Forgive what may be a naive question, but where is NFS using PG_private_2? aka PG_fscache. See nfs_fscache_release_folio() for example where it uses folio_test_fscache() and folio_wait_fscache(). David