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authorChristian König <christian.koenig@amd.com>2018-08-17 20:38:33 +0300
committerAlex Deucher <alexander.deucher@amd.com>2018-08-21 22:19:18 +0300
commitc4aed87630d41ee54e2ee23d4583c3dd423296dd (patch)
treed445a87cd9225254e6620b609acf549d8ca23f00 /drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
parentbce31d4c1ae8865d6382e3a27b07b4bb8e020ade (diff)
downloadlinux-c4aed87630d41ee54e2ee23d4583c3dd423296dd.tar.xz
drm/amdgpu: fix incorrect use of drm_file->pid
That's the PID of the creator of the file (usually the X server) and not the end user of the file. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> CC: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c19
1 files changed, 4 insertions, 15 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
index cb62a90d0686..1cafe8d83a4d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
@@ -55,7 +55,6 @@ static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev,
{
struct file *filp = fget(fd);
struct drm_file *file;
- struct pid *pid;
struct amdgpu_fpriv *fpriv;
struct amdgpu_ctx *ctx;
uint32_t id;
@@ -63,20 +62,10 @@ static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev,
if (!filp)
return -EINVAL;
- pid = get_pid(((struct drm_file *)filp->private_data)->pid);
-
- mutex_lock(&adev->ddev->filelist_mutex);
- list_for_each_entry(file, &adev->ddev->filelist, lhead) {
- if (file->pid != pid)
- continue;
-
- fpriv = file->driver_priv;
- idr_for_each_entry(&fpriv->ctx_mgr.ctx_handles, ctx, id)
- amdgpu_ctx_priority_override(ctx, priority);
- }
- mutex_unlock(&adev->ddev->filelist_mutex);
-
- put_pid(pid);
+ file = filp->private_data;
+ fpriv = file->driver_priv;
+ idr_for_each_entry(&fpriv->ctx_mgr.ctx_handles, ctx, id)
+ amdgpu_ctx_priority_override(ctx, priority);
fput(filp);