linux-kernel - [PATCH] ext3: fix non-update ctime when changing the file's permission by setfacl

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Message-ID: <4BFE2D38.2010501@cn.fujitsu.com>
Date:	Thu, 27 May 2010 16:28:40 +0800
From:	Miao Xie <miaox@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>, adilger@....com
CC:	Linux-Ext4 <linux-ext4@...r.kernel.org>,
	Linux-Kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH] ext3: fix non-update ctime when changing the file's permission
 by setfacl

ext3 didn't update the ctime of the file when its permission was changed.

Steps to reproduce:
 # touch aaa
 # stat -c %Z aaa
 1275289822
 # setfacl -m  'u::x,g::x,o::x' aaa
 # stat -c %Z aaa
 1275289822				<- unchanged

But, according to the spec of the ctime, ext3 must update it.

Signed-off-by: Miao Xie <miaox@...fujitsu.com>
---
 fs/ext3/acl.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index 01552ab..8a11fe2 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -205,6 +205,7 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
 					return error;
 				else {
 					inode->i_mode = mode;
+					inode->i_ctime = CURRENT_TIME_SEC;
 					ext3_mark_inode_dirty(handle, inode);
 					if (error == 0)
 						acl = NULL;
-- 
1.6.5.2


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