Re: [PATCH] drm/virtio: use kvmalloc for large allocations

From: Sergey Senozhatsky
Date: Thu Nov 05 2020 - 02:01:04 EST


Hi,

On (20/11/05 07:52), Gerd Hoffmann wrote:
> > - *ents = kmalloc_array(*nents, sizeof(struct virtio_gpu_mem_entry),
> > - GFP_KERNEL);
> > + *ents = kvmalloc_array(*nents,
> > + sizeof(struct virtio_gpu_mem_entry),
> > + GFP_KERNEL);
>
> Shouldn't that be balanced with a kvfree() elsewhere?

I think it already is. ents pointer is assigned to vbuf->data_buf,
and free_vbuf() already uses kvfree(vbuf->data_buf) to free it.

-ss