From: tab@snarc.org (Vincent Hanquez)
To: Greg KH <gregkh@suse.de>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>, linux-kernel@vger.kernel.org
Subject: Re: [BUG] debugfs: hard link count wrong
Date: Fri, 27 Jan 2006 18:43:33 +0100 [thread overview]
Message-ID: <20060127174332.GA19649@snarc.org> (raw)
In-Reply-To: <20060127071749.GA13924@suse.de>
On Thu, Jan 26, 2006 at 11:17:49PM -0800, Greg KH wrote:
> I'm running 4.3.0, not 4.2.30. I don't know where it came from either,
> gentoo's unstable tree has it, and caused me to download it from
> somewhere when I built it :)
looks like all fs that use simple_fill_super got a root inode with
i_nlink=1 at the start of day.
I've compared with shmem, the nlink is incremented to 2 by a call to
shmem_get_inode, when filling_super.
I've test the following patch with debugfs and securityfs, and its
seems to cure the problem.
------
Fix incorrect nlink of root inode for filesystems that use simple_fill_super
Signed-off-by: Vincent Hanquez <vincent@snarc.org>
diff -Naur a/fs/libfs.c a/fs/libfs.c
--- a/fs/libfs.c 2006-01-03 03:21:10.000000000 +0000
+++ b/fs/libfs.c 2006-01-27 17:43:31.000000000 +0000
@@ -388,6 +388,7 @@
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
inode->i_op = &simple_dir_inode_operations;
inode->i_fop = &simple_dir_operations;
+ inode->i_nlink = 2;
root = d_alloc_root(inode);
if (!root) {
iput(inode);
next prev parent reply other threads:[~2006-01-27 17:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-26 14:11 [BUG] debugfs: hard link count wrong Heiko Carstens
2006-01-27 3:25 ` Greg KH
2006-01-27 5:56 ` Heiko Carstens
2006-01-27 6:38 ` Greg KH
2006-01-27 7:04 ` Heiko Carstens
2006-01-27 7:17 ` Greg KH
2006-01-27 17:43 ` Vincent Hanquez [this message]
2006-01-30 6:51 ` Heiko Carstens
2006-02-01 12:08 ` Heiko Carstens
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