On Thu, Apr 28, 2022 at 12:28:45PM +0200, Martin Pieuchot wrote:
> rw_enter(9) can sleep. When the lock is finally acquired by the
> pagedaemon the previous check might no longer be true and the page
> could be busy. In this case we shouldn't touch it.
>
> Diff below recheck for PG_BUSY after
rw_enter(9) can sleep. When the lock is finally acquired by the
pagedaemon the previous check might no longer be true and the page
could be busy. In this case we shouldn't touch it.
Diff below recheck for PG_BUSY after acquiring the lock and also
use a variable for the lock to reduce the
