On Wed, 2006-11-15 at 08:46 -0800, Andrew Morton wrote:
> but nobody could have started another writeback after the "..." because they
> couldn't have got the lock_page(), and lock_page() is required for
> ->writepage()?
Nothing can have called writepage(), but something may be calling
->writepages(). That may call set_page_writeback without taking the page
lock.
Cheers,
Trond
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