Re: [PATCH 0/23] File descriptor hot-unplug support v2

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On Mon, 8 Jun 2009, Al Viro wrote:
> 
> Welcome to reality...
> 
> * bread() is non-interruptible
> * so's copy_from_user()/copy_to_user()
> * IO we are stuck upon _might_ be interruptible, but by sending a signal
> to some other process

We can probably improve on these, though.

Like the copy_to/from_user thing. We might well be able to do that whole 
"if it's a fatal signal, return early" thing.

So in the _general_ case - no, we probably can't fix things. But we could 
likely at least improve in some common cases if we cared.

			Linus
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