[PATCH V2 03/10] amdkfd: find_process_by_mm always return the primary context

[Zhu Lingshan]

Up until this commit, the kfd multiple contexts feature has
not been fully implemented in mainline kernel yet.

For backawrd compatibility, not break existing use cases,
this commit changes function find_process_by_mm, let it
always return the primary kfd_process.

Signed-off-by: Zhu Lingshan <lingshan....@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehl...@amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_process.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 955ca8725bc5..3f4ac9122203 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -935,7 +935,7 @@ static struct kfd_process *find_process_by_mm(const struct 
mm_struct *mm)
 
        hash_for_each_possible_rcu(kfd_processes_table, process,
                                        kfd_processes, (uintptr_t)mm)
-               if (process->mm == mm)
+               if (process->mm == mm && process->primary)
                        return process;
 
        return NULL;
-- 
2.47.1