Re: 2.6.6-rc{1,2} bad VM/NFS interaction in case of dirty pagewriteback

From: Andrew Morton
Date: Tue Apr 27 2004 - 20:06:40 EST


Shantanu Goel <sgoel01@xxxxxxxxx> wrote:
>
> Andrew/Trond,
>
> Any consensus as to what the right approach is here?

For now I suggest you do

- err = WRITEPAGE_ACTIVATE;
+ err = 0;

in nfs_writepage().

> One cheap though perhaps hack'ish solution would be to
> introduce yet another special error code like
> WRITEPAGE_ACTIVATE which instead of moving the page to
> the head of the active list instead moves it to the
> head of the inactive list.

It would be better to set a flag in the backing_dev so that page reclaim
knows to not enter writepage at all.
-
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