[PATCH 1/2] drm/amdkfd: Fix recursive lock warnings
Felix Kuehling
Felix.Kuehling at amd.com
Sat Mar 13 02:43:50 UTC 2021
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")
Signed-off-by: Felix Kuehling <Felix.Kuehling at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 318eeea577b5..bc3951b71079 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -93,13 +93,13 @@ struct amdgpu_prt_cb {
static inline void amdgpu_vm_eviction_lock(struct amdgpu_vm *vm)
{
mutex_lock(&vm->eviction_lock);
- vm->saved_flags = memalloc_nofs_save();
+ vm->saved_flags = memalloc_noreclaim_save();
}
static inline int amdgpu_vm_eviction_trylock(struct amdgpu_vm *vm)
{
if (mutex_trylock(&vm->eviction_lock)) {
- vm->saved_flags = memalloc_nofs_save();
+ vm->saved_flags = memalloc_noreclaim_save();
return 1;
}
return 0;
@@ -107,7 +107,7 @@ static inline int amdgpu_vm_eviction_trylock(struct amdgpu_vm *vm)
static inline void amdgpu_vm_eviction_unlock(struct amdgpu_vm *vm)
{
- memalloc_nofs_restore(vm->saved_flags);
+ memalloc_noreclaim_restore(vm->saved_flags);
mutex_unlock(&vm->eviction_lock);
}
--
2.30.2
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