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

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Message-ID: <20201105065233.3td3zuyfmbypjtvq@sirius.home.kraxel.org>
Date:   Thu, 5 Nov 2020 07:52:33 +0100
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     Sergey Senozhatsky <senozhatsky@...omium.org>
Cc:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Suleiman Souhlal <suleiman@...gle.com>,
        dri-devel@...ts.freedesktop.org,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/virtio: use kvmalloc for large allocations

  Hi,

> -	*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?

take care,
  Gerd