Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

> I've been chasing a hang in 2.2.9* and it comes down to truncate_inode_pages.
> 
> Now there are two things that have me wondering here and one cleanup item
> 

A naiive question on my part perhaps: but why is truncate_inode_pages
calling page_cache_release(page) without having done an
atomic_inc(&page->count) first?

Surely that is a bug unless you can guarantee that the caller did it
for you.

Cheers,
  Trond

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