Anton Altaparmakov wrote:
> What I would ask is why does the above dlm thread need to hold the
> data_lock duing truncate_inode_pages?
I hope the mail I just sent made that a little more clear.
> and repeat truncate_inode_pages, etc. Eventually it will succeed. And no
> need for nasty VFS patch you are proposing...
Yeah, this also came to me this morning in the shower :) There are some
hard cases because these are actually read-write locks, but it might be
doable. We're discussing it.
> no pages left, unless there is an overeager read process at work on that
> mapping at the same time.
I fear that it'll be pretty easy to get bad capture effects, but maybe
that's ok. We'll see.
- z
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