Re: [PATCH] clear PageError bit in msync & fsync

[Zan Lynx]

On 11/9/10 12:33 PM, Rik van Riel wrote:
> On 11/09/2010 02:21 PM, Jeff Layton wrote:
>
> > This does leave the page in sort of a funky state. The uptodate bit
> > will still probably be set, but the dirty bit won't be. The page will
> > be effectively "disconnected" from the backing store until someone
> > writes to it.
> >
> > I suppose though that this is the best that can reasonably be done in
> > this situation however...
>
> I spent a few days looking for alternatives, and indeed I found
> nothing better...

Just an off the top of my head crazy idea...

Could you leave the error bit set on the page and treat it as a dirty 
bit during a future msync, clearing the error bit at that point.

The general idea would be to leave the error set unless an explicit 
write was requested.

--
Zan Lynx
zlynx@xxxxxxx

"Knowledge is Power.  Power Corrupts.  Study Hard.  Be Evil."
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