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@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20201105014744.1662226-1-senozhatsky@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
*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;