From: Chris Mason <mason@suse.com>
To: Andrew Morton <akpm@digeo.com>
Cc: lkml <linux-kernel@vger.kernel.org>,
"ext3-users@redhat.com" <ext3-users@redhat.com>
Subject: Re: [patch] fix the ext3 data=journal unmount bug
Date: 06 Dec 2002 13:02:49 -0500 [thread overview]
Message-ID: <1039197769.7939.46.camel@tiny> (raw)
In-Reply-To: <3DF03B35.AA5858DC@digeo.com>
On Fri, 2002-12-06 at 00:52, Andrew Morton wrote:
>
>
> This patch fixes the data loss which can occur when unmounting a
> data=journal ext3 filesystem.
>
> The core problem is that the VFS doesn't tell the filesystem enough
> about what is happening. ext3 _needs_ to know the difference between
> regular memory-cleansing writeback and sync-for-data-integrity
> purposes.
>
What happens when the user does a sync() immediately after kupdate
trigger a write_super?
Since ext3_write_super just clears s_dirt, I don't see how sync_fs()
will get called.
-chris
next prev parent reply other threads:[~2002-12-06 17:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-06 5:52 [patch] fix the ext3 data=journal unmount bug Andrew Morton
2002-12-06 18:02 ` Chris Mason [this message]
2002-12-06 19:12 ` Andrew Morton
2002-12-06 19:34 ` Chris Mason
2002-12-06 19:45 ` Andrew Morton
2002-12-06 19:57 ` Stephen C. Tweedie
2002-12-06 20:34 ` Chris Mason
2002-12-06 21:22 ` Stephen C. Tweedie
2002-12-06 22:07 ` Chris Mason
2002-12-06 22:25 ` Stephen C. Tweedie
2002-12-07 14:54 ` Matthias Andree
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