From: Danilo Krummrich <dakr@redhat.com>
To: airlied@linux.ie, daniel@ffwll.ch, mripard@kernel.org,
christian.koenig@amd.com, emma@anholt.net
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Danilo Krummrich <dakr@redhat.com>
Subject: [PATCH RESEND 03/10] drm: use idr_init_base() to initialize master->magic_map
Date: Wed, 20 Jul 2022 15:28:23 +0200 [thread overview]
Message-ID: <20220720132830.193747-4-dakr@redhat.com> (raw)
In-Reply-To: <20220720132830.193747-1-dakr@redhat.com>
idr_init_base(), implemented by commit 6ce711f27500 ("idr: Make 1-based
IDRs more efficient"), let us set an arbitrary base other than
idr_init(), which uses base 0.
Since, for this IDR, no ID < 1 is ever requested/allocated, using
idr_init_base(&idr, 1) avoids unnecessary tree walks.
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Acked-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/drm_auth.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
index 6e433d465f41..63395bebaa6b 100644
--- a/drivers/gpu/drm/drm_auth.c
+++ b/drivers/gpu/drm/drm_auth.c
@@ -140,7 +140,7 @@ struct drm_master *drm_master_create(struct drm_device *dev)
kref_init(&master->refcount);
drm_master_legacy_init(master);
- idr_init(&master->magic_map);
+ idr_init_base(&master->magic_map, 1);
master->dev = dev;
/* initialize the tree of output resource lessees */
--
2.36.1
next prev parent reply other threads:[~2022-07-20 13:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-20 13:28 [PATCH RESEND 00/10] drm: use idr_init_base() over idr_init() if applicable Danilo Krummrich
2022-07-20 13:28 ` [PATCH RESEND 01/10] drm/amdgpu: use idr_init_base() to initialize mgr->ctx_handles Danilo Krummrich
2022-07-20 13:28 ` [PATCH RESEND 02/10] drm/amdgpu: use idr_init_base() to initialize fpriv->bo_list_handles Danilo Krummrich
2022-07-20 13:28 ` Danilo Krummrich [this message]
2022-07-20 13:28 ` [PATCH RESEND 04/10] drm: use idr_init_base() to initialize master->lessee_idr Danilo Krummrich
2022-07-20 13:28 ` [PATCH RESEND 05/10] drm: use idr_init_base() to initialize mode_config.object_idr Danilo Krummrich
2022-07-20 13:28 ` [PATCH RESEND 06/10] drm: use idr_init_base() to initialize mode_config.tile_idr Danilo Krummrich
2022-07-20 13:28 ` [PATCH RESEND 07/10] drm/sis: use idr_init_base() to initialize dev_priv->object_idr Danilo Krummrich
2022-07-20 13:28 ` [PATCH RESEND 08/10] drm/v3d: use idr_init_base() to initialize v3d_priv->perfmon.idr Danilo Krummrich
2022-07-23 22:45 ` Melissa Wen
2022-07-20 13:28 ` [PATCH RESEND 09/10] drm/via: use idr_init_base() to initialize dev_priv->object_idr Danilo Krummrich
2022-07-20 13:28 ` [PATCH RESEND 10/10] drm/todo: remove task for idr_init_base() Danilo Krummrich
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