Re: Yet another borken page_count() check ininvalidate_inode_pages2()....

[Trond Myklebust]

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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