Re: [PATCH -fixes] mm: Add a call to flush_cache_vmap() in vmap_pfn()

[Andrew Morton]

On Wed,  9 Aug 2023 18:46:33 +0200 Alexandre Ghiti <alexghiti@xxxxxxxxxxxx> wrote:

> flush_cache_vmap() must be called after new vmalloc mappings are
> installed in the page table in order to allow architectures to make sure
> the new mapping is visible.

Thanks.  What are the user-visible effects of this bug?