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From: Matthew Wilcox <willy@infradead.org>
To: dri-devel@lists.freedesktop.org
Cc: Matthew Wilcox <willy@infradead.org>
Subject: [PATCH 06/34] drm: Convert magic_map to XArray
Date: Thu, 21 Feb 2019 10:41:32 -0800	[thread overview]
Message-ID: <20190221184226.2149-13-willy@infradead.org> (raw)
In-Reply-To: <20190221184226.2149-1-willy@infradead.org>

Signed-off-by: Matthew Wilcox <willy@infradead.org>
---
 drivers/gpu/drm/drm_auth.c | 18 ++++++++----------
 include/drm/drm_auth.h     |  5 ++---
 2 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
index 1669c42c40ed..268189e9e2e0 100644
--- a/drivers/gpu/drm/drm_auth.c
+++ b/drivers/gpu/drm/drm_auth.c
@@ -62,17 +62,16 @@ int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv)
 
 	mutex_lock(&dev->master_mutex);
 	if (!file_priv->magic) {
-		ret = idr_alloc(&file_priv->master->magic_map, file_priv,
-				1, 0, GFP_KERNEL);
-		if (ret >= 0)
-			file_priv->magic = ret;
+		ret = xa_alloc(&file_priv->master->magic_map,
+				&file_priv->magic, file_priv,
+				xa_limit_31b, GFP_KERNEL);
 	}
 	auth->magic = file_priv->magic;
 	mutex_unlock(&dev->master_mutex);
 
 	DRM_DEBUG("%u\n", auth->magic);
 
-	return ret < 0 ? ret : 0;
+	return ret;
 }
 
 int drm_authmagic(struct drm_device *dev, void *data,
@@ -84,10 +83,10 @@ int drm_authmagic(struct drm_device *dev, void *data,
 	DRM_DEBUG("%u\n", auth->magic);
 
 	mutex_lock(&dev->master_mutex);
-	file = idr_find(&file_priv->master->magic_map, auth->magic);
+	file = xa_load(&file_priv->master->magic_map, auth->magic);
 	if (file) {
 		file->authenticated = 1;
-		idr_replace(&file_priv->master->magic_map, NULL, auth->magic);
+		xa_store(&file_priv->master->magic_map, auth->magic, NULL, 0);
 	}
 	mutex_unlock(&dev->master_mutex);
 
@@ -105,7 +104,7 @@ struct drm_master *drm_master_create(struct drm_device *dev)
 	kref_init(&master->refcount);
 	spin_lock_init(&master->lock.spinlock);
 	init_waitqueue_head(&master->lock.lock_queue);
-	idr_init(&master->magic_map);
+	xa_init_flags(&master->magic_map, XA_FLAGS_ALLOC1);
 	master->dev = dev;
 
 	/* initialize the tree of output resource lessees */
@@ -269,7 +268,7 @@ void drm_master_release(struct drm_file *file_priv)
 
 	mutex_lock(&dev->master_mutex);
 	if (file_priv->magic)
-		idr_remove(&file_priv->master->magic_map, file_priv->magic);
+		xa_erase(&file_priv->master->magic_map, file_priv->magic);
 
 	if (!drm_is_current_master(file_priv))
 		goto out;
@@ -348,7 +347,6 @@ static void drm_master_destroy(struct kref *kref)
 
 	drm_legacy_master_rmmaps(dev, master);
 
-	idr_destroy(&master->magic_map);
 	idr_destroy(&master->leases);
 	idr_destroy(&master->lessee_idr);
 
diff --git a/include/drm/drm_auth.h b/include/drm/drm_auth.h
index 86bff9841b54..c719fe375967 100644
--- a/include/drm/drm_auth.h
+++ b/include/drm/drm_auth.h
@@ -76,10 +76,9 @@ struct drm_master {
 	 */
 	int unique_len;
 	/**
-	 * @magic_map: Map of used authentication tokens. Protected by
-	 * &drm_device.master_mutex.
+	 * @magic_map: Map of used authentication tokens.
 	 */
-	struct idr magic_map;
+	struct xarray magic_map;
 	struct drm_lock_data lock;
 	void *driver_priv;
 
-- 
2.20.1

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  parent reply	other threads:[~2019-02-21 18:42 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-21 18:41 [PATCH 00/34] Convert DRM to XArray Matthew Wilcox
2019-02-21 18:41 ` [PATCH 01/34] drm: Convert drm_minors_idr " Matthew Wilcox
2019-02-22  9:11   ` Daniel Vetter
2019-02-22  9:55     ` Daniel Vetter
2019-02-22 15:13     ` Matthew Wilcox
2019-02-21 18:41 ` [PATCH 02/34] drm: Convert aux_idr " Matthew Wilcox
2019-02-25 17:57   ` Ville Syrjälä
2019-02-25 18:42     ` Matthew Wilcox
2019-02-25 18:50       ` Ville Syrjälä
2019-02-21 18:41 ` [PATCH 03/34] drm: Convert object_name_idr " Matthew Wilcox
2019-02-22  9:17   ` Daniel Vetter
2019-02-21 18:41 ` [PATCH 04/34] drm: Convert object_idr " Matthew Wilcox
2019-02-21 18:41 ` [PATCH 05/34] drm: Convert syncobj_idr " Matthew Wilcox
2019-02-21 18:41 ` Matthew Wilcox [this message]
2019-02-21 18:41 ` [PATCH 07/34] drm: Convert lessee_idr " Matthew Wilcox
2019-02-21 18:41 ` [PATCH 08/34] drm: Remove linked lists for lessees Matthew Wilcox
2019-02-21 18:41 ` [PATCH 09/34] drm: Convert ctx_idr to XArray Matthew Wilcox
2019-02-21 18:41 ` [PATCH 10/34] drm: Convert tile_idr " Matthew Wilcox
2019-02-21 18:41 ` [PATCH 11/34] drm: Convert crtc_idr " Matthew Wilcox
2019-02-22  9:40   ` Daniel Vetter
2019-02-22 15:32     ` Matthew Wilcox
2019-02-22 17:12       ` Daniel Vetter
2019-02-21 18:41 ` [PATCH 12/34] drm/agp: Convert bo_list_handles " Matthew Wilcox
2019-02-25 16:06   ` Christian König
2019-02-25 16:39     ` Matthew Wilcox
2019-02-21 18:41 ` [PATCH 13/34] drm/amdgpu: Convert ctx_handles " Matthew Wilcox
2019-02-25 16:07   ` Christian König
2019-02-25 16:39     ` Matthew Wilcox
2019-02-25 16:59       ` Koenig, Christian
2019-02-25 18:47         ` Matthew Wilcox
2019-02-21 18:41 ` [PATCH 14/34] drm/amdgpu: Convert pasid_idr " Matthew Wilcox
2019-02-21 18:41 ` [PATCH 15/34] drm/amdkfd: Convert event_idr " Matthew Wilcox
2019-02-21 18:41 ` [PATCH 16/34] drm/amdkfd: Convert alloc_idr " Matthew Wilcox
2019-02-21 18:41 ` [PATCH 17/34] drm/etnaviv: Convert fence_idr " Matthew Wilcox
2019-02-21 18:41 ` [PATCH 18/34] drm/i915: Convert handles_vma " Matthew Wilcox
2019-02-21 18:41 ` [PATCH 19/34] drm/i915: Convert spt_tree " Matthew Wilcox
2019-02-21 18:41 ` [PATCH 20/34] drm/i915: Convert page_track_tree " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 21/34] drm/i915: Convert get_page " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 22/34] drm/i915: Convert object_idr to IDA Matthew Wilcox
2019-02-21 18:42 ` [PATCH 23/34] drm/i915: Convert context_idr to XArray Matthew Wilcox
2019-02-21 18:42 ` [PATCH 24/34] drm/i915: Convert metrics_idr " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 25/34] drm/i915: Convert vgpus_idr " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 26/34] drm/qxl: Convert release_idr " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 27/34] drm/qxl: Convert surf_id_idr " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 28/34] drm/tegra: Convert contexts IDR " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 29/34] drm/vc4: Convert perfmon " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 30/34] drm/sis: Convert object_idr " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 31/34] drm/vgem: Convert fence_idr " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 32/34] drm/via: Convert object_idr " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 33/34] drm/vmwgfx: Convert base IDR " Matthew Wilcox
2019-02-21 18:42 ` [PATCH 34/34] drm/vmwgfx: Convert res_idr " Matthew Wilcox
2019-02-22  9:54 ` [PATCH 00/34] Convert DRM " Daniel Vetter
2019-02-24  4:21   ` Matthew Wilcox

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