From: Christoph Hellwig <[email protected]>
To: Linus Torvalds <[email protected]>,
Andrew Morton <[email protected]>
Cc: Al Viro <[email protected]>,
Felix Kuehling <[email protected]>,
Alex Deucher <[email protected]>,
Zhenyu Wang <[email protected]>,
Zhi Wang <[email protected]>, Felipe Balbi <[email protected]>,
"Michael S. Tsirkin" <[email protected]>,
Jason Wang <[email protected]>, Jens Axboe <[email protected]>,
[email protected], [email protected],
[email protected],
[email protected], [email protected],
[email protected],
[email protected], [email protected],
[email protected]
Subject: [PATCH 1/6] amdgpu: a NULL ->mm does not mean a thread is a kthread
Date: Sat, 4 Apr 2020 11:40:56 +0200 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
Use the proper API instead.
Fixes: 70539bd795002 ("drm/amd: Update MEC HQD loading code for KFD")
Signed-off-by: Christoph Hellwig <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index 13feb313e9b3..4db143c19dcc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -190,7 +190,7 @@ uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *s
pagefault_disable(); \
if ((mmptr) == current->mm) { \
valid = !get_user((dst), (wptr)); \
- } else if (current->mm == NULL) { \
+ } else if (current->flags & PF_KTHREAD) { \
use_mm(mmptr); \
valid = !get_user((dst), (wptr)); \
unuse_mm(mmptr); \
--
2.25.1
next prev parent reply other threads:[~2020-04-04 9:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-04 9:40 improve use_mm / unuse_mm Christoph Hellwig
2020-04-04 9:40 ` Christoph Hellwig [this message]
2020-04-06 16:07 ` [PATCH 1/6] amdgpu: a NULL ->mm does not mean a thread is a kthread Felix Kuehling
2020-04-04 9:40 ` [PATCH 2/6] i915/gvt/kvm: " Christoph Hellwig
2020-04-04 10:05 ` Sergei Shtylyov
2020-04-07 3:08 ` Yan Zhao
2020-04-13 13:27 ` Christoph Hellwig
2020-04-14 0:04 ` Yan Zhao
2020-04-14 7:00 ` Christoph Hellwig
2020-04-14 7:03 ` Yan Zhao
2020-04-04 9:40 ` [PATCH 3/6] i915/gvt: remove unused xen bits Christoph Hellwig
2020-04-08 1:44 ` Zhenyu Wang
2020-04-13 13:08 ` Christoph Hellwig
2020-04-14 3:04 ` Zhenyu Wang
2020-04-04 9:40 ` [PATCH 4/6] kernel: move use_mm/unuse_mm to kthread.c Christoph Hellwig
2020-04-06 16:09 ` Felix Kuehling
2020-04-04 9:41 ` [PATCH 5/6] kernel: better document the use_mm/unuse_mm API contract Christoph Hellwig
2020-04-04 13:07 ` [Intel-gfx] " Pavel Begunkov
2020-04-06 16:10 ` Felix Kuehling
2020-04-04 9:41 ` [PATCH 6/6] kernel: set USER_DS in kthread_use_mm Christoph Hellwig
2020-04-06 21:49 ` Michael S. Tsirkin
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