[merged] amdgpu-a-null-mm-does-not-mean-a-thread-is-a-kthread.patch removed from -mm tree

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The patch titled
     Subject: amdgpu: a NULL ->mm does not mean a thread is a kthread
has been removed from the -mm tree.  Its filename was
     amdgpu-a-null-mm-does-not-mean-a-thread-is-a-kthread.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Christoph Hellwig <hch@xxxxxx>
Subject: amdgpu: a NULL ->mm does not mean a thread is a kthread

Use the proper API instead.

Link: http://lkml.kernel.org/r/20200404094101.672954-1-hch@xxxxxx
Link: http://lkml.kernel.org/r/20200404094101.672954-2-hch@xxxxxx
Fixes: 70539bd795002 ("drm/amd: Update MEC HQD loading code for KFD")
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Reviewed-by: Jens Axboe <axboe@xxxxxxxxx>
Tested-by: Jens Axboe <axboe@xxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx>
Cc: Zhi Wang <zhi.a.wang@xxxxxxxxx>
Cc: Felipe Balbi <balbi@xxxxxxxxxx>
Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Cc: Jason Wang <jasowang@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h~amdgpu-a-null-mm-does-not-mean-a-thread-is-a-kthread
+++ a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -196,7 +196,7 @@ uint8_t amdgpu_amdkfd_get_xgmi_hops_coun
 			pagefault_disable();				\
 			if ((mmptr) == current->mm) {			\
 				valid = !get_user((dst), (wptr));	\
-			} else if (current->mm == NULL) {		\
+			} else if (current->flags & PF_KTHREAD) {	\
 				kthread_use_mm(mmptr);			\
 				valid = !get_user((dst), (wptr));	\
 				kthread_unuse_mm(mmptr);		\
_

Patches currently in -mm which might be from hch@xxxxxx are





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