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[2620:137:e000::1:20]) by mx.google.com with ESMTP id 66-20020a621845000000b0064388918719si2300590pfy.85.2023.06.20.13.03.39; Tue, 20 Jun 2023 13:04:02 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@szeredi.hu header.s=google header.b=BlynXctA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=szeredi.hu Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230317AbjFTT2t (ORCPT + 99 others); Tue, 20 Jun 2023 15:28:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57218 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230242AbjFTT2q (ORCPT ); Tue, 20 Jun 2023 15:28:46 -0400 Received: from mail-ej1-x634.google.com (mail-ej1-x634.google.com [IPv6:2a00:1450:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99309170A for ; Tue, 20 Jun 2023 12:28:45 -0700 (PDT) Received: by mail-ej1-x634.google.com with SMTP id a640c23a62f3a-988883b0d8fso448241266b.1 for ; Tue, 20 Jun 2023 12:28:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=szeredi.hu; s=google; t=1687289324; x=1689881324; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=XH1eTCKvssGWMBfvFrdgcklOsCxNlyt2GIpnc07LELQ=; b=BlynXctAWH1QRQ92/1liGst5sDK4J+VQcZkeHhN/JzMTNaMJ1YVs/a+8TpEn7V+e2z 5rsT4otCl2HBLFcn3UZI9U8/bLdOsI5BJgt9hPBTvRlotni4E07NsF/Dwxb5rbyEmVrn Cp4ves6PTyv0l/TrGTJFH5VxYdufbQ6URbqso= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687289324; x=1689881324; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=XH1eTCKvssGWMBfvFrdgcklOsCxNlyt2GIpnc07LELQ=; b=aFR9SY3Y8BXzRPZMqmbv4/QkyH1093NLxXqBnjrpnUNTcm9czH/tk/AUh0GJS2LW8a oOaJGNJmbqodKfeQXMVZZe4Y7fNTMg/6JbdfPVUdywqethYT/n2obGOSj+Nx1fcMxjHr r5UIofusKGqDYmkeVdmv/ahraxiafQv2exbtWnlOtPVpOlotBm5w3NkA1ViMt2DeGWXY ccBbvGvcsHzIT/tlvnnyB/l8mk7+DnkuR8U6Jx7eoStTZ4Xr9qMtFImKN8cMNfUzFBGV iQ5dBT2djSPGsN4VqTN+XDVRmoG7nQnJY5hgd9Tw4XGvppSfqbV4EUB3+ccQtkMSBBlx y5TQ== X-Gm-Message-State: AC+VfDyN44VQspNcNiQOfXI19T7/CKvkv2bbbyjxEJlGMwLm4FklzCnA /M2Lcgjrfilg92OFNNkno/lC5DqySWrpi+oHM7pOsQ== X-Received: by 2002:a17:906:6a0c:b0:988:bb33:53a8 with SMTP id qw12-20020a1709066a0c00b00988bb3353a8mr5382005ejc.9.1687289324011; Tue, 20 Jun 2023 12:28:44 -0700 (PDT) MIME-Version: 1.0 References: <20230620151328.1637569-1-keiichiw@chromium.org> <20230620151328.1637569-3-keiichiw@chromium.org> In-Reply-To: <20230620151328.1637569-3-keiichiw@chromium.org> From: Miklos Szeredi Date: Tue, 20 Jun 2023 21:28:32 +0200 Message-ID: Subject: Re: [PATCH 2/3] fuse: Add negative_dentry_timeout option To: Keiichi Watanabe Cc: LKML , mhiramat@google.com, takayas@chromium.org, drosen@google.com, sarthakkukreti@google.com, uekawa@chromium.org, Jonathan Corbet , linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 20 Jun 2023 at 17:14, Keiichi Watanabe wrote: > > Add `negative_dentry_timeout` mount option for FUSE to cache negative > dentries for the specified duration. This is already possible, no kernel changes needed. See e.g. xmp_init() in libfuse/example/passthrough.c. Thanks, Miklos