On Fri, Jan 15, 2021 at 07:52:53PM +0100, Christian König wrote:
> Am 15.01.21 um 17:47 schrieb Daniel Vetter:
> > We have too many people abusing the struct page they can get at but
> > really shouldn't in importers. Aside from that the backing page might
> > simply not exist (for dynamic p2p mapp
Am 15.01.21 um 17:47 schrieb Daniel Vetter:
We have too many people abusing the struct page they can get at but
really shouldn't in importers. Aside from that the backing page might
simply not exist (for dynamic p2p mappings) looking at it and using it
e.g. for mmap can also wreak the page handli
We have too many people abusing the struct page they can get at but
really shouldn't in importers. Aside from that the backing page might
simply not exist (for dynamic p2p mappings) looking at it and using it
e.g. for mmap can also wreak the page handling of the exporter
completely. Importers reall
Am 15.01.21 um 16:52 schrieb Daniel Vetter:
We have too many people abusing the struct page they can get at but
really shouldn't in importers. Aside from that the backing page might
simply not exist (for dynamic p2p mappings) looking at it and using it
e.g. for mmap can also wreak the page handli
Quoting Daniel Vetter (2021-01-15 15:52:26)
> +static void mangle_sg_table(struct sg_table *sg_table)
> +{
> +#ifdef CONFIG_DMABUF_DEBUG
> + int i;
> + struct scatterlist *sg;
> +
> + if (!sg_table)
if (!IS_ENABLED(CONFIG_DMABUF_DEBUG) || IS_ERR_OR_NULL(sg_table))
> +
We have too many people abusing the struct page they can get at but
really shouldn't in importers. Aside from that the backing page might
simply not exist (for dynamic p2p mappings) looking at it and using it
e.g. for mmap can also wreak the page handling of the exporter
completely. Importers reall
We have too many people abusing the struct page they can get at but
really shouldn't in importers. Aside from that the backing page might
simply not exist (for dynamic p2p mappings) looking at it and using it
e.g. for mmap can also wreak the page handling of the exporter
completely. Importers reall