From de15b0c4b1b427f9d65ee507db52fb3f1379b2b2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Mon, 13 Sep 2021 13:44:01 +0200
Subject: drm: use new iterator in drm_gem_fence_array_add_implicit v3
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Git-commit: 7cd80132aeab30e4699f04e80d909678d231a558
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Simplifying the code a bit.
v2: add missing rcu_read_lock()/unlock()
v3: switch to locked version
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211005113742.1101-24-christian.koenig@amd.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/drm_gem.c | 26 +++++---------------------
1 file changed, 5 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 09c820045859..4dcdec6487bb 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -1340,31 +1340,15 @@ int drm_gem_fence_array_add_implicit(struct xarray *fence_array,
struct drm_gem_object *obj,
bool write)
{
- int ret;
- struct dma_fence **fences;
- unsigned int i, fence_count;
-
- if (!write) {
- struct dma_fence *fence =
- dma_resv_get_excl_unlocked(obj->resv);
-
- return drm_gem_fence_array_add(fence_array, fence);
- }
+ struct dma_resv_iter cursor;
+ struct dma_fence *fence;
+ int ret = 0;
- ret = dma_resv_get_fences(obj->resv, NULL,
- &fence_count, &fences);
- if (ret || !fence_count)
- return ret;
-
- for (i = 0; i < fence_count; i++) {
- ret = drm_gem_fence_array_add(fence_array, fences[i]);
+ dma_resv_for_each_fence(&cursor, obj->resv, write, fence) {
+ ret = drm_gem_fence_array_add(fence_array, fence);
if (ret)
break;
}
-
- for (; i < fence_count; i++)
- dma_fence_put(fences[i]);
- kfree(fences);
return ret;
}
EXPORT_SYMBOL(drm_gem_fence_array_add_implicit);
--
2.38.1