Hi Bernard, Thank you for the patch. Please see some comments inline. Am 2020-04-20 um 10:25 p.m. schrieb Bernard Zhao: > Maybe we could reduce the mutex_lock(&mem->lock)`s protected code area, > and noneed to protect pr_debug. Typo: noneed -> no need > > Signed-off-by: Bernard Zhao <bernard@xxxxxxxx> > > Changes since V1: > *commit message improve > > Link for V1: > *https://lore.kernel.org/patchwork/patch/1226588/ > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > index 327317c54f7c..3c3769e57174 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > @@ -1285,17 +1285,18 @@ int amdgpu_amdkfd_gpuvm_free_memory_of_gpu( > struct bo_vm_reservation_context ctx; > struct ttm_validate_buffer *bo_list_entry; > int ret; > + unsigned int mapped_to_gpu_memory; > > mutex_lock(&mem->lock); > + mapped_to_gpu_memory = mem->mapped_to_gpu_memory; > + mutex_unlock(&mem->lock); > > - if (mem->mapped_to_gpu_memory > 0) { > + if (mapped_to_gpu_memory > 0) { > pr_debug("BO VA 0x%llx size 0x%lx is still mapped.\n", > mem->va, bo_size); > - mutex_unlock(&mem->lock); > return -EBUSY; > } > > - mutex_unlock(&mem->lock); > /* lock is not needed after this, since mem is unused and will > * be freed anyway > */ Please move this comment along with the mutex_unlock. Regards, Felix _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
