Re: [PATCH 2/7] guest_memfd: Introduce an object to manage the guest-memfd with RamDiscardManager

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Two trivial comments I spot:

On Fri, Dec 13, 2024 at 03:08:44PM +0800, Chenyi Qiang wrote:
> +struct GuestMemfdManager {
> +    Object parent;
> +
> +    /* Managed memory region. */
> +    MemoryRegion *mr;
> +
> +    /*
> +     * 1-setting of the bit represents the memory is populated (shared).
> +     */
> +    int32_t bitmap_size;
> +    unsigned long *bitmap;

Might be clearer to name the bitmap directly as what it represents.  E.g.,
shared_bitmap?

> +
> +    /* block size and alignment */
> +    uint64_t block_size;

Can we always fetch it from the MR/ramblock? If this is needed, better add
some comment explaining why.

> +
> +    /* listeners to notify on populate/discard activity. */
> +    QLIST_HEAD(, RamDiscardListener) rdl_list;
> +};

-- 
Peter Xu





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