Re: [PATCH v2 1/2] mmap locking API: add mmap_lock_is_contended()
From: Michel Lespinasse
Date: Fri Aug 14 2020 - 04:30:59 EST
On Wed, Aug 12, 2020 at 7:14 PM Chinwen Chang
<chinwen.chang@xxxxxxxxxxxx> wrote:
>
> Add new API to query if someone wants to acquire mmap_lock
> for write attempts.
>
> Using this instead of rwsem_is_contended makes it more tolerant
> of future changes to the lock type.
>
> Signed-off-by: Chinwen Chang <chinwen.chang@xxxxxxxxxxxx>
Acked-by: Michel Lespinasse <walken@xxxxxxxxxx>