Re: [PATCH 2/2] fs: Make write(2) interruptible by a signal

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On Wed, Nov 23, 2011 at 11:06:56PM +0800, Theodore Ts'o wrote:
> 
> On Nov 23, 2011, at 8:27 AM, Wu Fengguang wrote:
> 
> > 
> > Reading Ted's information feed, I tend to disregard the partial write
> > issue: since the "broken" applications will already fail and get
> > punished in various other cases, I don't care adding one more penalty
> > case to them :-P
> 
> Just wait until you have a bunch of rabid application programmers,
> questioning your judgement, your morality, and even your paternity.
> :-)

Ah OK, that sounds frightening. Hmm, till now every one have
acknowledged the possibility of data corruption, only that
people have different perceptions of the severeness.

Let's rethink things this way: "Is it a _worthwhile_ risk at all?"
I'm afraid not. Considering the origin of this patch

[BUG] aborted ext4 leads to inifinity loop in balance_dirty_pages
http://www.spinics.net/lists/linux-ext4/msg28464.html

I *think* Jan's first patch is already enough for fixing the bug. IWO
the patch we worried/discussed so much is really an optional one. I
would imagine the easy and safe solution is to just drop it. Any
objections?

Thanks,
Fengguang
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