From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f42.google.com (mail-ed1-f42.google.com [209.85.208.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 097291B2524 for ; Thu, 29 Aug 2024 15:05:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.42 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724943905; cv=none; b=gAiBi8PKZcsK9z8puHUIDgooCP9gm6IXT1GiaFbdiG6/iyTdJCE6+uPIKawwwodprR9iNBihrM/f2J8PXuUuztohNc4gr8/X9KRUQ0eSn4BbLgHXRWiwxTITyz7Ezx6DDsftGXYxPMihD+bo6Lp3JEX854s7H14pAmKQ/DGHsDI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724943905; c=relaxed/simple; bh=DsJ4bZcfJKBvtNEIQaWZaz6y5C2wq+VgDv3ekEf69NM=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=TAEI9RLlC6dXbW3o5VW9fJ7H6ouGi87pK94zhtIxtyxfLIr/hFCTgI8gqaBlFYl3u8VgnPxUQudJ4r0SiIpUtGd4UjoKzTwnotKfeU6LtX2q0c+pfTB78YUlLexb2rZesXnDe+M0jmNCt771q7tMNuXJrwmIsuehZRX2wF/YLVU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=szeredi.hu; spf=pass smtp.mailfrom=szeredi.hu; dkim=pass (1024-bit key) header.d=szeredi.hu header.i=@szeredi.hu header.b=YxyICWLK; arc=none smtp.client-ip=209.85.208.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=szeredi.hu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=szeredi.hu Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=szeredi.hu header.i=@szeredi.hu header.b="YxyICWLK" Received: by mail-ed1-f42.google.com with SMTP id 4fb4d7f45d1cf-5c0a9f2b967so884220a12.2 for ; Thu, 29 Aug 2024 08:05:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=szeredi.hu; s=google; t=1724943902; x=1725548702; darn=vger.kernel.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=PTKBAD4B1Yj171/JDWLju2+zytOazWI1J+O0ary/GQg=; b=YxyICWLKsTycSZ+iAqjFHLtR1pdoao5Uq5llXE9mIIUmkWmsPZbxIwx/eH38JcMSr3 WsXF5VUz88E89MJ5DAlAVQlcGIwydHfVEHe73Ky7Nwyaw0FXwF+d+G1M+IcYfQt/9EXf qvD+zUCHdt0/KUjj+LzhV29bP/NKOPeTDNoEk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724943902; x=1725548702; 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=PTKBAD4B1Yj171/JDWLju2+zytOazWI1J+O0ary/GQg=; b=I2hzfW7OSF356RpBii8DLcoxcYaCnbZO6R/WVisjbfhV2Zcn4KvkPQPlD3VqHciGWu 2lzGkSavayJYPEiAekdz7jaUW/+rzDpnMu3eI+A2kVOcrH4JD0XXH0QT7l88p0uGcie2 H4KsQaSa/Rp8yBv2T4VH9WoXaOW+30ImcPwMdQDFRz7klWBWiz3q4av11igUzcG0U5XQ nb+tZegn2uVlgC2Wfa3VgYx67I5gtuqNbpnzd0EadNCdTVJ4TS3lFGUjHP8MDgRLOjnj pPr2Vz8eJaANxk+g+AktI8IlplX11Qeq/YkXpSb0zT1YxDt89Z1FEv3QrvLfKWUwaMVP oUIQ== X-Forwarded-Encrypted: i=1; AJvYcCV6Xz0AALAWkrAH0cBCrFcdwCUt9COplX4dDsoRozaOJPbWcOf/Z+Axacusk/mP5zwHcCd7qBwYhkSWND13@vger.kernel.org X-Gm-Message-State: AOJu0YwSuaVQx8tLOogU3aGFZFroW10xg1g4twVrJKduOVlgXy2k/ur5 5HVHE94MUfB3cBapao/ghNGOIyvU7b7cd23bO0jSGri4Z6ijbNPrDlJgCrbF4Jd4v2KvV5vy1Fq IHWMNobRWYUOOujOGdTT1sbxH7y8XFrAWHDLAIg== X-Google-Smtp-Source: AGHT+IFpGowd+Q+ZG451Q3joT2SLkB4g5Q4YqUCCmWpN3XktmKBsb64iumCrsbOfqFfuWLzE0N3Udyal8WmTI229cDs= X-Received: by 2002:a05:6402:2550:b0:5c0:bab8:7910 with SMTP id 4fb4d7f45d1cf-5c21ed96fd6mr2853555a12.27.1724943901113; Thu, 29 Aug 2024 08:05:01 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20240108120824.122178-1-aleksandr.mikhalitsyn@canonical.com> <20240108120824.122178-3-aleksandr.mikhalitsyn@canonical.com> <20240829-hurtig-vakuum-5011fdeca0ed@brauner> In-Reply-To: From: Miklos Szeredi Date: Thu, 29 Aug 2024 17:04:48 +0200 Message-ID: Subject: Re: [PATCH v1 2/9] fs/fuse: add FUSE_OWNER_UID_GID_EXT extension To: Aleksandr Mikhalitsyn Cc: Christian Brauner , mszeredi@redhat.com, stgraber@stgraber.org, linux-fsdevel@vger.kernel.org, Seth Forshee , Amir Goldstein , Bernd Schubert , linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" On Thu, 29 Aug 2024 at 16:39, Aleksandr Mikhalitsyn wrote: > So, your point is to set uid/gid to -1 for FUSE_{READ,WRITE,LOOKUP,RELEASE,...}? Yes. Not sure what will happen with those servers that check permissions based on these values, but my guess is it's still better than sending the unmapped value. Thanks, Miklos