From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f170.google.com (mail-oi1-f170.google.com [209.85.167.170]) (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 EC51C18C345; Thu, 15 Aug 2024 07:45:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723707909; cv=none; b=cb4zQYH7x0NkxXylO3jBOhg4Axk5uTJH0wzZOdg6H6/pXQdZOILz569UIo6HbMw+Mw7LsdZ4MLvBep7ud4R05K+dbHgnTtRQ6h/Hd38nwxnnuEK8nZIrVwLPymCjNGvMt1UmS4r+0RhbDTezZfMea+fVRutfLshQsxAKIuHJR0w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723707909; c=relaxed/simple; bh=/mB/mlfQrIgD0frh/4DcIeHDLda+/2ewOJd7MQOI3yc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=qIHWSCWawB7XpR5Uhp7Qp2sjZiAGElhi9QnaEUl6TrwqCQJ10ZJbwtWg5BJbhohl1CeCR+ABShAIrSEYDNyAFpCDSy1RDe8zxH1O25DW/kyeyrVymMTO4Q+bgM97jFa2mFRheqYnG64FU94wfg7q1yGla/rJtWjo4n20kxUcvWI= 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=MHkquwVv; arc=none smtp.client-ip=209.85.167.170 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="MHkquwVv" Received: by mail-oi1-f170.google.com with SMTP id 5614622812f47-3db504ab5f3so399843b6e.0; Thu, 15 Aug 2024 00:45:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1723707907; x=1724312707; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=bU0q1yZ+PWK8s4WWyTu7zQH49E1o8+TlEE7m0tArHx8=; b=MHkquwVvxeeUUPD1TGK4h+ZMcn5JEfy0OKps0bYAvih9GksV7ejxh+T8pmUMkHrf3q x7EE971f/Pdagxl/uahddXv3d0jb2zQ9PAnNvulpsJxI9ePHgTmQl2YsYW8FOjiPPomb kRHluAoo+R3Y1O8C1wQito8JLeKYbUBfvj0yZKVQEWX5CSdIX9ys+bUY7I2dc9Vx/soU Nb/AzGSVz2MAABkA8ld7p6q7P7hGn+DngYaq/tbCNHaTecrOAFxzxkfy49+Z9LBMf2GK 8QjGVqiwhEaZDGG0k/EkpycJ09d6jRz8RohWu16Fg+fguBHEjFDl1jeDQJIe6EFXhTn8 tfgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723707907; x=1724312707; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bU0q1yZ+PWK8s4WWyTu7zQH49E1o8+TlEE7m0tArHx8=; b=LmVupO7nXLOVOPKGMO3OLbRPEuhbbuGwU32MOWZLsvB64g3VRgBuWOhlj/CoVqFm5a q4AN4WV7qnbSk6hI2PyIcm8+Whbiep3m+XKbU+hkk9tn+9vSqU1dZASaRjnWEqWxRse8 DLUJW2DvLCakSERM4pc4RPSooAFZb9Mz0jZF8W6IXDoSjHcTgQlDD6wsFeQwxZaWXKGU VWI1UvdGxUqBS76s6vDMzgQRFbex/wOhEMdduQCjxY13W+WpFI7aHdumQsbXs4qEAdM7 X4IhpcLT0qn1CvN6EU0YUMaLm11G/4lwTK/CjX48nIFaztmjyIeBubnGCoJRIsuD26PB I4jA== X-Forwarded-Encrypted: i=1; AJvYcCXf+T9BI5kpFQDymzp3GCndSdyHPLuLbxB8jCjydBXu7saR5858jWxFCLjSDIQxcadtBE8t0YTOV9rDYQHU6wxQH6Cy7Cq+U2EoIT2H X-Gm-Message-State: AOJu0YxOms6vf2SDUnfPB6WYrwAoxjnhTWYPLYhbidl2Du41P2A0mZda EcyIae7doaSP1e73Qelwr83+z6Cgz4+SWrGuaUZ3wkRYg4MQ5UBzqvHxeQ== X-Google-Smtp-Source: AGHT+IGf1Ia5UvOW1nviDnQ+6Olj1OBL2BE1pruYmmbR28+ThG7CXAV9Vh88PbbD3/YTOAWgOEGsCA== X-Received: by 2002:a05:6870:d60a:b0:25d:e3d:b441 with SMTP id 586e51a60fabf-26fe5be0ac4mr5839090fac.40.1723707906818; Thu, 15 Aug 2024 00:45:06 -0700 (PDT) Received: from carrot.. (i222-151-34-139.s42.a014.ap.plala.or.jp. [222.151.34.139]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7127add721dsm584767b3a.42.2024.08.15.00.45.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Aug 2024 00:45:06 -0700 (PDT) From: Ryusuke Konishi To: Andrew Morton Cc: linux-nilfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/4] nilfs2: add support for FS_IOC_GETUUID Date: Thu, 15 Aug 2024 16:44:05 +0900 Message-Id: <20240815074408.5550-2-konishi.ryusuke@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240815074408.5550-1-konishi.ryusuke@gmail.com> References: <20240815074408.5550-1-konishi.ryusuke@gmail.com> Precedence: bulk X-Mailing-List: linux-nilfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Expose the UUID of a file system instance using the super_set_uuid helper and support the FS_IOC_GETUUID ioctl. Signed-off-by: Ryusuke Konishi --- fs/nilfs2/super.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index e835e1f5a712..167050b3ce7e 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -1063,6 +1063,9 @@ nilfs_fill_super(struct super_block *sb, struct fs_context *fc) if (err) goto failed_nilfs; + super_set_uuid(sb, nilfs->ns_sbp[0]->s_uuid, + sizeof(nilfs->ns_sbp[0]->s_uuid)); + cno = nilfs_last_cno(nilfs); err = nilfs_attach_checkpoint(sb, cno, true, &fsroot); if (err) { -- 2.34.1