From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:40890 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752269AbdIEVGz (ORCPT ); Tue, 5 Sep 2017 17:06:55 -0400 From: Jaegeuk Kim To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim , stable@vger.kernel.org Subject: [PATCH] f2fs: fix wrong bfree and bavail Date: Tue, 5 Sep 2017 14:06:53 -0700 Message-Id: <20170905210653.46186-1-jaegeuk@kernel.org> Sender: stable-owner@vger.kernel.org List-ID: This patch fixes bavail and bfree finally. long f_bfree; /* free blocks in fs */ long f_bavail; /* free blocks avail to non-superuser */ So, bfree represents all the reserved blocks, while bavail does the space only visible to normal user. Fix: 3e6d0b4d9c1c ("f2fs: fix incorrect f_bfree calculation in ->statfs") Cc: # 4.8+ Signed-off-by: Jaegeuk Kim --- fs/f2fs/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 7e29db227910..17cca4cb93af 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -955,8 +955,8 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_bsize = sbi->blocksize; buf->f_blocks = total_count - start_count; - buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; - buf->f_bavail = user_block_count - valid_user_blocks(sbi) - + buf->f_bfree = user_block_count - valid_user_blocks(sbi); + buf->f_bavail = user_block_count - valid_user_blocks(sbi) - ovp_count - sbi->reserved_blocks; avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; -- 2.14.0.rc1.383.gd1ce394fe2-goog