Re: [Xen-devel] [PATCH v2 4/4] xen/netback: fix grant copy across page boundary

[Paul Durrant <pdurrant@xxxxxxxxx>]

On Fri, 17 Jan 2020 at 12:59, Sergey Dyasli <sergey.dyasli@xxxxxxxxxx> wrote:
>
> From: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
>
> When KASAN (or SLUB_DEBUG) is turned on, there is a higher chance that
> non-power-of-two allocations are not aligned to the next power of 2 of
> the size. Therefore, handle grant copies that cross page boundaries.
>
> Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
> Signed-off-by: Sergey Dyasli <sergey.dyasli@xxxxxxxxxx>
> ---
> v1 --> v2:
> - Use sizeof_field(struct sk_buff, cb)) instead of magic number 48
> - Slightly update commit message
>
> RFC --> v1:
> - Added BUILD_BUG_ON to the netback patch
> - xenvif_idx_release() now located outside the loop
>
> CC: Wei Liu <wei.liu@xxxxxxxxxx>
> CC: Paul Durrant <paul@xxxxxxx>

Acked-by: Paul Durrant <paul@xxxxxxx>

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