Maybe we could reduce the mutex_lock(&mem->lock)`s protected code area, and noneed to protect pr_debug.
Signed-off-by: Bernard Zhao <[email protected]> --- 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 327317c..3c3769e5 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 */ -- 2.7.4 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
