On Wed, Jun 30, 2021 at 10:25 AM Jan Kara <jack@xxxxxxx> wrote:
>
> could you please pull from
No.
There is no way I'll merge something this broken.
Looking up a page in the page cache is just about the most critical
thing there is, and this introduces a completely pointless lock for
that situation.
Does it take the lock only when it creates the page? No. It takes the
lock in filemap_fault() even if it found a valid page in the page
cache.
This is just wrong.
Linus
