From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-f43.google.com (mail-qv1-f43.google.com [209.85.219.43]) (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 DB90F1CF8B; Wed, 7 Feb 2024 06:46:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.43 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707288377; cv=none; b=jVzk7hWyQlv2asM4xVLoidj+6uWSHYWUo4yDTt946QqOBi808VzVfKD3FCoPFnT+LcJBTLVjEVm0mfePPvGDlTqahqGIEscAK/LFxs5kdr9pODrzEJuCIzvcbdp3hvUI37ng3fS/c6Ynl48Vn4pzlX9ZCAPq6qszptaM4UpRmv8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707288377; c=relaxed/simple; bh=PWIegwB5nz6v/YXJjqW/D2O29mDPZR7zuWttz9wVRxM=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=e4w29GZ/Om+TTsKaQ4lnyo6mPRs+x5DRiEc1DMXHUsyIjziIzNZFx2oFl8FJgoDVM80JSlNQeYppJvYsen1ruMvvgbun/cWAmOPA2/LlqCwZ8WijAU1uvm4A+KsrIVSuZwqiOTk59fQuT4zeg8QG+9vlzj0N9cMPA6ypq0cw0oo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=h+k29odj; arc=none smtp.client-ip=209.85.219.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="h+k29odj" Received: by mail-qv1-f43.google.com with SMTP id 6a1803df08f44-68cbff3bd92so397686d6.3; Tue, 06 Feb 2024 22:46:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1707288374; x=1707893174; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=PWIegwB5nz6v/YXJjqW/D2O29mDPZR7zuWttz9wVRxM=; b=h+k29odjIOwp96KtYcwZifXmoEAXQtmsyxbS0Ks3R4jPFCL/877KWMaSwQr83oMy/j kdOSxszSLt9BVLSwiQ83RI3WRUPlVIOZCeln0MenUln8YwfFaNG6820ezkFAt35DinEi fgx4NbEVPh3mqrjUzEpLqZH1z05KAiSgoScKzJ/WSezyk3UGm4aeUu9IbZR64uyiez+J Tk8mdLFQaVN+vXumsd2+ChbyVVGMbF8bd8+WiR+5wSDbOymm4ZOV43Kic3VjPcMdbs8B 4e0v5FBxfp8SFUA4vueFxzJK15DhmV9AmUE+GMLnwkyxeeTMopRXaXOTwIPHfEwchy+W sjSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707288374; x=1707893174; h=content-transfer-encoding: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=PWIegwB5nz6v/YXJjqW/D2O29mDPZR7zuWttz9wVRxM=; b=k6NR+19Y20GxgQZHgQC8sIM2Vesd6y/Wl4SqT3jKlWRxPWHIZuCr1/cCyrP9yA0BhX CI9WQ1bdBTFdB2agAbKXYZOcJY9RxveFovbYcfCe16RZZyb04ZqhVstUJ2E0ZSsvRk7E wGMDpNIfue08E4l4ow3iLTecDvZKLDztXt/5ZEEe56ooa3op6NeBnVdnxPjsyIHPU+7O xaSWG/W3RYssSifFxBG62x+EeUqnZpuj4d+YqlkbubPDZVwa4j6t+Yls9j//r8YYhtox xQL9xhDSXG3lcilIFtRixJzcUcj2/q6/7fA4CPKjyyHsgSlMu8J4Sk3+FYYpHPsvylij O3yw== X-Gm-Message-State: AOJu0YzG9zLujgbZGiG7wkNvU0BkqxsX829O3xrLO3UK7y0QmYo9a4ZM NQtI/FS1ipwxWNRTawwxncKHohJq18JEhqOzZy7GTE4r24i1WViJqL+gHPBdOo/xnr8OWQRfjaW KEu8/zJUaIs/ToQXfpUQz+KLqmQs= X-Google-Smtp-Source: AGHT+IGRrzhZE2376FU07LO1KsClgMkPeDEZo/RjTs4IZi0v0HYlPtfpVJO6k+WkHKQqXUOR/oapKZ02MJqojGFUz+4= X-Received: by 2002:a05:6214:62c:b0:68c:9d26:81ba with SMTP id a12-20020a056214062c00b0068c9d2681bamr3763302qvx.28.1707288374733; Tue, 06 Feb 2024 22:46:14 -0800 (PST) Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20240207025624.1019754-1-kent.overstreet@linux.dev> <20240207025624.1019754-4-kent.overstreet@linux.dev> In-Reply-To: From: Amir Goldstein Date: Wed, 7 Feb 2024 08:46:03 +0200 Message-ID: Subject: Re: [PATCH v3 3/7] fs: FS_IOC_GETUUID To: Kent Overstreet Cc: linux-fsdevel@vger.kernel.org, brauner@kernel.org, linux-btrfs@vger.kernel.org, Jan Kara , Dave Chinner , "Darrick J. Wong" , "Theodore Ts'o" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, Feb 7, 2024 at 8:41=E2=80=AFAM Amir Goldstein = wrote: > > On Wed, Feb 7, 2024 at 4:57=E2=80=AFAM Kent Overstreet > wrote: > > > > Add a new generic ioctls for querying the filesystem UUID. > > > > These are lifted versions of the ext4 ioctls, with one change: we're no= t > > using a flexible array member, because UUIDs will never be more than 16 > > bytes. > > > > This patch adds a generic implementation of FS_IOC_GETFSUUID, which > > reads from super_block->s_uuid. We're not lifting SETFSUUID from ext4 - > > that can be done on offline filesystems by the people who need it, > > trying to do it online is just asking for too much trouble. > > > > Cc: Christian Brauner > > Cc: Jan Kara > > Cc: Dave Chinner > > Cc: "Darrick J. Wong" > > Cc: Theodore Ts'o > > Cc: linux-fsdevel@vger.kernel.or typo in list address. Thanks, Amir.