We observed that some of virtio_gpu_object_shmem_init() allocations
can be rather costly - order 6 - which can be difficult to fulfill
under memory pressure conditions. Switch to kvmalloc_array() in
virtio_gpu_object_shmem_init() and let the kernel vmalloc the entries
array.
Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
---
drivers/gpu/drm/virtio/virtgpu_object.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index 2d3aa7baffe4..d9ad27e00905 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -184,8 +184,9 @@ static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev,
*nents = shmem->pages->orig_nents;
}
- *ents = kmalloc_array(*nents, sizeof(struct virtio_gpu_mem_entry),
- GFP_KERNEL);
+ *ents = kvmalloc_array(*nents,
+ sizeof(struct virtio_gpu_mem_entry),
+ GFP_KERNEL);
if (!(*ents)) {
DRM_ERROR("failed to allocate ent list\n");
return -ENOMEM;
--
2.29.1.341.ge80a0c044ae-goog
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