diff options
Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1162-drm-amdkfd-Get-reference-to-lead_thread-task-struct.patch')
-rw-r--r-- | meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1162-drm-amdkfd-Get-reference-to-lead_thread-task-struct.patch | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1162-drm-amdkfd-Get-reference-to-lead_thread-task-struct.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1162-drm-amdkfd-Get-reference-to-lead_thread-task-struct.patch deleted file mode 100644 index 2f39f3e0..00000000 --- a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1162-drm-amdkfd-Get-reference-to-lead_thread-task-struct.patch +++ /dev/null @@ -1,54 +0,0 @@ -From bde5632fe56cf6aaaec61f7b0192449f585fca6e Mon Sep 17 00:00:00 2001 -From: Felix Kuehling <Felix.Kuehling@amd.com> -Date: Tue, 26 Jul 2016 17:22:46 -0400 -Subject: [PATCH 1162/4131] drm/amdkfd: Get reference to lead_thread task - struct - -Increment the kfd_process.lead_thread's reference counter to make -it safe to dereference. This will be needed for getting a safe -reference to the process' mm_struct. - -Change-Id: I2a38f5f2de989dd4f19115d21d31ea6df953806c -Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> ---- - drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 ++ - drivers/gpu/drm/amd/amdkfd/kfd_process.c | 3 +++ - 2 files changed, 5 insertions(+) - -diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h -index 1a9aab7..054a784 100644 ---- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h -+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h -@@ -618,6 +618,8 @@ struct kfd_process { - * In any process, the thread that started main() is the lead - * thread and outlives the rest. - * It is here because amd_iommu_bind_pasid wants a task_struct. -+ * It can also be used for safely getting a reference to the -+ * mm_struct of the process. - */ - struct task_struct *lead_thread; - -diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c -index ec066d8..889d165 100644 ---- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c -+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c -@@ -466,6 +466,8 @@ static void kfd_process_ref_release(struct kref *ref) - - kfd_pasid_free(p->pasid); - -+ put_task_struct(p->lead_thread); -+ - kfree(p); - } - -@@ -647,6 +649,7 @@ static struct kfd_process *create_process(const struct task_struct *thread) - (uintptr_t)process->mm); - - process->lead_thread = thread->group_leader; -+ get_task_struct(process->lead_thread); - - INIT_LIST_HEAD(&process->per_device_data); - --- -2.7.4 - |