linux-kernel - Re: [PATCH 00/10] drm: use idr_init_base() over idr

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Date:   Thu, 28 Jul 2022 16:44:13 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     emma@...olt.net, daniel@...ll.ch, dakr@...hat.com,
        airlied@...ux.ie, christian.koenig@....com
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 00/10] drm: use idr_init_base() over idr_init() if
 applicable

On Thu, Jul 28, 2022 at 04:41:41PM +0200, Maxime Ripard wrote:
> On Fri, 1 Jul 2022 20:52:53 +0200, dakr@...hat.com wrote:
> > From: Danilo Krummrich <dakr@...hat.com>
> > 
> > This patch series initializes IDRs with idr_init_base(&idr, 1) rather than
> > idr_init(&idr) in case for the particular IDR no IDs < 1 are ever requested -
> > this avoids unnecessary tree walks.
> > 
> > Danilo Krummrich (10):
> >   drm/amdgpu: use idr_init_base() to initialize mgr->ctx_handles
> >   drm/amdgpu: use idr_init_base() to initialize fpriv->bo_list_handles
> >   drm: use idr_init_base() to initialize master->magic_map
> >   drm: use idr_init_base() to initialize master->lessee_idr
> >   drm: use idr_init_base() to initialize mode_config.object_idr
> >   drm: use idr_init_base() to initialize mode_config.tile_idr
> >   drm/sis: use idr_init_base() to initialize dev_priv->object_idr
> >   drm/v3d: use idr_init_base() to initialize v3d_priv->perfmon.idr
> >   drm/via: use idr_init_base() to initialize dev_priv->object_idr
> >   drm/todo: remove task for idr_init_base()
> > 
> > [...]
> 
> Applied to drm/drm-misc (drm-misc-next).

The via driver had changed a bit and the patch 9 didn't apply at all.
I've moved the change to where it looked like it belonged, but you might
want to double check.

Maxime

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