From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-180.mta0.migadu.com (out-180.mta0.migadu.com [91.218.175.180]) (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 4689238382 for ; Tue, 9 Jul 2024 01:12:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720487549; cv=none; b=CcjuOiRNAXfZuPhXyEzKWbXyIg/pWPWd7OoXQc8TswgrBDzgzjVADfatwcAb3j46kCvHi6o9qODDtqXvZO7NCj6f7QfMdksofwiHvZ1qw3OWlSLx1Hdtu7l3Xb8XZ+LPh0uVg+fxbLjXLa+bUTf+dV/OeC8fwbGRDUUxA6B72+c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720487549; c=relaxed/simple; bh=M/haVXt9kBWZPHRlKxuQqZvuBj87zF8ixybMgHC7E4g=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=KY+hYkoa+O0Mx7hjFcdkHq8AgIZ5ER6sAvjb78Ag5hEaxWZVFNHYy8bXupjNz8zliF5TmQ9OFuxARl9kWgRS+rPhWTenyvkRgmtpvJwSR/H/Zih0ZUQLkx6BESIQ7yzbZz/oZwkLxJ5THPPNlmfIILc8URsvk/xAQ3HCxszi1fQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=HMBQot+u; arc=none smtp.client-ip=91.218.175.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="HMBQot+u" X-Envelope-To: kent.overstreet@linux.dev DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1720487544; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/WRsCkWo4c3DSYd+4rnVQGauuQ75xbcJ6EVIzRWnhf8=; b=HMBQot+uW12ycR0be1x+LA7NH1Xuewq3jNHRzRtVH5MoisdbjDktD882jU3Abf0RGnDWIk L62EgibZP3vRqv4l4YInaqGk0XzPKCy8MwP08H1CEwEgQzc3TKhOYabdKmpEDVEd78PR+c quyMYBGkHWMjWo54NkVcPj7gaI+py9k= X-Envelope-To: linux-bcachefs@vger.kernel.org X-Envelope-To: linux-kernel@vger.kernel.org X-Envelope-To: youling.tang@linux.dev X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Youling Tang To: Kent Overstreet Cc: linux-bcachefs@vger.kernel.org, linux-kernel@vger.kernel.org, Youling Tang Subject: [PATCH 2/2] bcachefs: Add support for FS_IOC_GETFSSYSFSPATH Date: Tue, 9 Jul 2024 09:11:34 +0800 Message-Id: <20240709011134.79954-2-youling.tang@linux.dev> In-Reply-To: <20240709011134.79954-1-youling.tang@linux.dev> References: <20240709011134.79954-1-youling.tang@linux.dev> Precedence: bulk X-Mailing-List: linux-bcachefs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT From: Kent Overstreet [TEST]: ``` $ cat ioctl_getsysfspath.c #include #include #include #include #include #include int main(int argc, char *argv[]) { int fd; struct fs_sysfs_path sysfs_path = {}; if (argc != 2) { fprintf(stderr, "Usage: %s \n", argv[0]); exit(EXIT_FAILURE); } fd = open(argv[1], O_RDONLY); if (fd == -1) { perror("open"); exit(EXIT_FAILURE); } if (ioctl(fd, FS_IOC_GETFSSYSFSPATH, &sysfs_path) == -1) { perror("ioctl FS_IOC_GETFSSYSFSPATH"); close(fd); exit(EXIT_FAILURE); } printf("FS_IOC_GETFSSYSFSPATH: %s\n", sysfs_path.name); close(fd); return 0; } $ gcc ioctl_getsysfspath.c $ sudo bcachefs format /dev/sda $ sudo mount.bcachefs /dev/sda /mnt $ sudo ./a.out /mnt FS_IOC_GETFSSYSFSPATH: bcachefs/c380b4ab-fbb6-41d2-b805-7a89cae9cadb ``` Original patch link: [1]: https://lore.kernel.org/all/20240207025624.1019754-8-kent.overstreet@linux.dev/ Signed-off-by: Kent Overstreet Signed-off-by: Youling Tang --- fs/bcachefs/fs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/bcachefs/fs.c b/fs/bcachefs/fs.c index 011ee5075a52..8699770398d1 100644 --- a/fs/bcachefs/fs.c +++ b/fs/bcachefs/fs.c @@ -1978,6 +1978,7 @@ static int bch2_fs_get_tree(struct fs_context *fc) sb->s_time_min = div_s64(S64_MIN, c->sb.time_units_per_sec) + 1; sb->s_time_max = div_s64(S64_MAX, c->sb.time_units_per_sec); super_set_uuid(sb, c->sb.user_uuid.b, sizeof(c->sb.user_uuid)); + super_set_sysfs_name_uuid(sb); sb->s_shrink->seeks = 0; c->vfs_sb = sb; strscpy(sb->s_id, c->name, sizeof(sb->s_id)); -- 2.34.1