From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:49302 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932383AbcIAMqV (ORCPT ); Thu, 1 Sep 2016 08:46:21 -0400 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id CD2E7AAF1 for ; Thu, 1 Sep 2016 12:45:54 +0000 (UTC) From: David Sterba To: linux-btrfs@vger.kernel.org Cc: David Sterba Subject: [PATCH] btrfs: create example debugfs file only in debugging build Date: Thu, 1 Sep 2016 14:44:32 +0200 Message-Id: <1472733872-32549-1-git-send-email-dsterba@suse.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Signed-off-by: David Sterba --- fs/btrfs/sysfs.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 804bd1c42e47..31f09564e170 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -836,9 +836,18 @@ static int btrfs_init_debugfs(void) if (!btrfs_debugfs_root_dentry) return -ENOMEM; + /* + * Example code, how export data through debugfs. + * + * file: /sys/kernel/debug/btrfs/test + * contents of: btrfs_debugfs_test + */ +#ifdef CONFIG_BTRFS_DEBUG debugfs_create_u64("test", S_IRUGO | S_IWUSR, btrfs_debugfs_root_dentry, &btrfs_debugfs_test); #endif + +#endif return 0; } -- 2.7.1