From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5C51CA9EB9 for ; Thu, 24 Oct 2019 02:34:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C4D721872 for ; Thu, 24 Oct 2019 02:34:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HOaQy1e/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406448AbfJXCen (ORCPT ); Wed, 23 Oct 2019 22:34:43 -0400 Received: from mail-qt1-f194.google.com ([209.85.160.194]:46202 "EHLO mail-qt1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726928AbfJXCem (ORCPT ); Wed, 23 Oct 2019 22:34:42 -0400 Received: by mail-qt1-f194.google.com with SMTP id u22so35440803qtq.13; Wed, 23 Oct 2019 19:34:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=xn5B/vWX4/5/L633ZiUXRAOXf5Sfp3irsNXPi/hnTvY=; b=HOaQy1e/F3vF9ZWEaNhz8sCI0vRcsUXdW7RONBuzVK00TZUTAKWZH8MkD3KfuuStzp Uz95XSOBtaiN68JEtliuneain+XrpA81jZbOaATHZFRjqeFzVgCnFYHV06tjjKgMr1wh 8nDK44TY0Gs4eWdg4h1mIMxoIUE4Yu5FvulkH/9aqfIG3N/Z759rknSez0n6uRVqj1Up QiXdTqYlNgYrMoqL1NlWIpZ4MwZ9bUfIZJkGoU1tVvyrj2+mfHZk1dOwIzUZuR2SNV3+ xCuCEfHYi5w9FDXICUBxxCPvcMa9K7hkyIJuH0EsUPE8rHbW/9rfoPz8Vg2RlOv4lh+f oHww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=xn5B/vWX4/5/L633ZiUXRAOXf5Sfp3irsNXPi/hnTvY=; b=IbrsgI0u0BUzesWifVoWtrQIEUlUbB4+kOKD+cNcdVr0r1G7qCuL30FSBf4SZ4vI01 mzoPkYsgSEsnTIUKkYaIh2QUQ1kk6C1mNxGJUTsKiSSJNLwY9M345O+JiCeqhhXusWO6 VHOv5tYGxK8adYq4q3DjgTiHD7wf2Y3DNpUtIQy5mqwi+4yXtt6buXsVL/El8aXhFESu JbsqktcDKgYXyxGJWEnwnQDEurhMwXML/z1M6crxiaT3Naks4K5cYl/JO57WWioQfKdk l9AJruhBlN4Zd0qmagthOCnxp4XlBgHeLfuT8KI9FT/EFUcJngXpFmNAsB2QORwoJChg 0Mkw== X-Gm-Message-State: APjAAAV7qozmpsYIzZvnThK3niEzP7P1slBBd9LMWmw/3yV25eYby9YN Pez+2tj/dbSkUnFXORLXlTiQKSk2 X-Google-Smtp-Source: APXvYqyNhJNo3RvCu1gy5NnJCBx/ex4BCCEqhW4R3CurPNNM6c120p8qNKcvY2Peu6iiPMSuGqSQ1Q== X-Received: by 2002:aed:2088:: with SMTP id 8mr1948861qtb.295.1571884481019; Wed, 23 Oct 2019 19:34:41 -0700 (PDT) Received: from localhost.localdomain ([186.212.94.31]) by smtp.gmail.com with ESMTPSA id q16sm10252495qke.22.2019.10.23.19.34.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Oct 2019 19:34:40 -0700 (PDT) From: Marcos Paulo de Souza To: linux-kernel@vger.kernel.org Cc: clm@fb.com, josef@toxicpanda.com, dsterba@suse.com, linux-btrfs@vger.kernel.org, mpdesouza@suse.com Subject: [PATCH 1/5] btrfs: sysfs: Add envp argument to btrfs_kobject_uevent Date: Wed, 23 Oct 2019 23:36:32 -0300 Message-Id: <20191024023636.21124-2-marcos.souza.org@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191024023636.21124-1-marcos.souza.org@gmail.com> References: <20191024023636.21124-1-marcos.souza.org@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org From: Marcos Paulo de Souza This new argument will be used by the next patches for sending uevents related to subvolumes being added/removed. These uevents will contain environment data that will be sent to userspace, making it possible to take actions once these events arrive. Signed-off-by: Marcos Paulo de Souza --- fs/btrfs/sysfs.c | 7 +++++-- fs/btrfs/sysfs.h | 3 ++- fs/btrfs/volumes.c | 2 +- 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index f6d3c80f2e28..93a8ed9e4fe8 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -998,11 +998,14 @@ int btrfs_sysfs_add_device_link(struct btrfs_fs_devices *fs_devices, return error; } -void btrfs_kobject_uevent(struct block_device *bdev, enum kobject_action action) +void btrfs_kobject_uevent(struct block_device *bdev, + enum kobject_action action, + char *envp[]) { int ret; - ret = kobject_uevent(&disk_to_dev(bdev->bd_disk)->kobj, action); + ret = kobject_uevent_env(&disk_to_dev(bdev->bd_disk)->kobj, + action, envp); if (ret) pr_warn("BTRFS: Sending event '%d' to kobject: '%s' (%p): failed\n", action, kobject_name(&disk_to_dev(bdev->bd_disk)->kobj), diff --git a/fs/btrfs/sysfs.h b/fs/btrfs/sysfs.h index 610e9c36a94c..5be3953074ad 100644 --- a/fs/btrfs/sysfs.h +++ b/fs/btrfs/sysfs.h @@ -26,7 +26,8 @@ void btrfs_sysfs_update_sprout_fsid(struct btrfs_fs_devices *fs_devices, const u8 *fsid); void btrfs_sysfs_feature_update(struct btrfs_fs_info *fs_info, u64 bit, enum btrfs_feature_set set); -void btrfs_kobject_uevent(struct block_device *bdev, enum kobject_action action); +void btrfs_kobject_uevent(struct block_device *bdev, + enum kobject_action action, char *env[]); int __init btrfs_init_sysfs(void); void __cold btrfs_exit_sysfs(void); diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index bdfe4493e43a..7a7a9cae9b80 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -7580,7 +7580,7 @@ void btrfs_scratch_superblocks(struct block_device *bdev, const char *device_pat } /* Notify udev that device has changed */ - btrfs_kobject_uevent(bdev, KOBJ_CHANGE); + btrfs_kobject_uevent(bdev, KOBJ_CHANGE, NULL); /* Update ctime/mtime for device path for libblkid */ update_dev_time(device_path); -- 2.23.0