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From: Ted Ts'o <tytso@mit.edu>
To: Jan Kara <jack@suse.cz>
Cc: Yongqiang Yang <xiaoqiangnk@gmail.com>,
	Allison Henderson <achender@linux.vnet.ibm.com>,
	Ext4 Developers List <linux-ext4@vger.kernel.org>
Subject: Re: [PATCH 1/1] Null Pointer when make_indexed_dir returns -ENOSPC
Date: Mon, 9 May 2011 10:22:37 -0400	[thread overview]
Message-ID: <20110509142237.GA19811@thunk.org> (raw)
In-Reply-To: <20110509140537.GN4122@quack.suse.cz>

On Mon, May 09, 2011 at 04:05:37PM +0200, Jan Kara wrote:
>   Yes. ext4_append() can return ENOSPC and passed bh will get set to NULL
> without being marked dirty.

Ah, so the right fix then is to add to make the cleanup code like this:

		ext4_mark_inode_dirty(handle, dir);
		ext4_handle_dirty_metadata(handle, dir, frame->bh);
+	        ext4_handle_dirty_metadata(handle, dir, bh2);
+		if (bh)
+			ext4_handle_dirty_metadata(handle, dir, bh);
		dx_release(frames);
		return retval;

Agreed?

						- Ted

  reply	other threads:[~2011-05-09 14:22 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-07 23:54 [PATCH 1/1] Null Pointer when make_indexed_dir returns -ENOSPC Allison Henderson
2011-05-09  0:38 ` Ted Ts'o
2011-05-09 11:03 ` Jan Kara
2011-05-09 11:18   ` Yongqiang Yang
2011-05-09 11:20     ` Yongqiang Yang
2011-05-09 11:21       ` Yongqiang Yang
2011-05-09 11:30     ` Jan Kara
2011-05-09 11:33       ` Yongqiang Yang
2011-05-09 11:36         ` Jan Kara
2011-05-09 13:55       ` Ted Ts'o
2011-05-09 14:05         ` Jan Kara
2011-05-09 14:22           ` Ted Ts'o [this message]
2011-05-09 14:27             ` [PATCH -v2] ext4: don't dereference null pointer when make_indexed_dir() fails Theodore Ts'o
2011-05-09 14:56               ` Eric Sandeen
2011-05-09 14:42             ` [PATCH 1/1] Null Pointer when make_indexed_dir returns -ENOSPC Jan Kara
2011-05-09 20:39               ` Allison Henderson
2011-05-10 13:34                 ` Jan Kara

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