On Sun, 17 Dec 2006 23:16:17 -0800
Andrew Morton <[email protected]> wrote:
> > out:
> > if (buffers_to_free) {
> > struct buffer_head *bh = buffers_to_free;
>
> This will (at least) cause truncate to do peculiar things.
> do_invalidatepage() runs discard_buffer() against the dirty page and will
> then expect try_to_free_buffers() to remove those buffers and then clean
> the page. truncate_complete_page() will clean the page, but it still has
> those invalidated buffers. We'll end up with a large number of clean,
> unused pages on the LRU, with attached buffers. These should eventually
> get reaped, but it'll change the page aging dynamics.
That being said, it's be great to get this tested by someone who can
trigger this bug, please.
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