Re: Linux 2.6.29

Theodore Tso
2009-03-25T21:52:23Z

On Wed, Mar 25, 2009 at 01:45:43PM -0700, Linus Torvalds wrote:
> > The third potential solution we can try doing is to make some tuning
> > adjustments to the VM so that we start pushing out these data blocks
> > much more aggressively out to the disk.
>
> Yes. but at least one problem is, as mentioned, that when the VM calls
> writepage[s]() to start async writeback, many filesystems do seem to just
> _block_ on it.

Um, no, ext3 shouldn't block on writepage(). Since it doesn't do
delayed allocation, it should always be able to push out a dirty page
to the disk.

- Ted