Web lists-archives.com

Re: [PATCH v6 1/2] pid: Replace pid bitmap implementation with IDR API

On Wed, 2017-10-11 at 15:37 -0700, Andrew Morton wrote:
> On Wed, 11 Oct 2017 18:19:38 -0400 Gargi Sharma <gs051095@xxxxxxxxx>
> wrote:
> > This patch replaces the current bitmap implemetation for
> > Process ID allocation. Functions that are no longer required,
> > for example, free_pidmap(), alloc_pidmap(), etc. are removed.
> > The rest of the functions are modified to use the IDR API.
> > The change was made to make the PID allocation less complex by
> > replacing custom code with calls to generic API.
> I still don't understand the locking.  spin_lock_irq(&pidmap_lock) in
> some places, rcu_read_lock() in others.
> If the locking is indeed now correct, can we please get it fully
> documented?  A comment at the pid_namespace.idr definition site would
> suit.

Would you like me to send a follow-up patch to document the

Documenting the locking on all the existing code, plus the
new code, seems a little out of scope of an Outreachy

All Rights Reversed.

Attachment: signature.asc
Description: This is a digitally signed message part