* [PATCH 1/1] drm/amdkfd: Fix recursive lock warnings
@ 2021-02-16 20:22 Felix Kuehling
2021-02-17 2:52 ` philip yang
0 siblings, 1 reply; 2+ messages in thread
From: Felix Kuehling @ 2021-02-16 20:22 UTC (permalink / raw)
To: amd-gfx, dri-devel; +Cc: Daniel Vetter
memalloc_nofs_save/restore are no longer sufficient to prevent recursive
lock warnings when holding locks that can be taken in MMU notifiers. Use
memalloc_noreclaim_save/restore instead.
Fixes: f920e413ff9c ("mm: track mmu notifiers in fs_reclaim_acquire/release")
CC: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
index 16262e5d93f5..7351dd195274 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
@@ -243,11 +243,11 @@ get_sh_mem_bases_nybble_64(struct kfd_process_device *pdd)
static inline void dqm_lock(struct device_queue_manager *dqm)
{
mutex_lock(&dqm->lock_hidden);
- dqm->saved_flags = memalloc_nofs_save();
+ dqm->saved_flags = memalloc_noreclaim_save();
}
static inline void dqm_unlock(struct device_queue_manager *dqm)
{
- memalloc_nofs_restore(dqm->saved_flags);
+ memalloc_noreclaim_restore(dqm->saved_flags);
mutex_unlock(&dqm->lock_hidden);
}
--
2.30.0
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* Re: [PATCH 1/1] drm/amdkfd: Fix recursive lock warnings
2021-02-16 20:22 [PATCH 1/1] drm/amdkfd: Fix recursive lock warnings Felix Kuehling
@ 2021-02-17 2:52 ` philip yang
0 siblings, 0 replies; 2+ messages in thread
From: philip yang @ 2021-02-17 2:52 UTC (permalink / raw)
To: Felix Kuehling, amd-gfx, dri-devel; +Cc: Daniel Vetter
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