Re: [PATCH v3 2/7] mm/vmalloc: Track which page-table levels were modified

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On Mon, May 18, 2020 at 03:18:28PM -0700, Andrew Morton wrote:
> On Sat, 16 May 2020 14:56:41 +0200 Joerg Roedel <jroedel@xxxxxxx> wrote:
> --- a/mm/vmalloc.c~mm-vmalloc-track-which-page-table-levels-were-modified-fix
> +++ a/mm/vmalloc.c
> @@ -309,6 +309,9 @@ int map_kernel_range_noflush(unsigned lo
>  			return err;
>  	} while (pgd++, addr = next, addr != end);
>  
> +	if (mask & ARCH_PAGE_TABLE_SYNC_MASK)
> +		arch_sync_kernel_mappings(start, end);
> +
>  	return 0;
>  }

Yes, this is the right call.

> It would be nice to get all this (ie, linux-next) retested before we
> send it upstream, please.

Will do and report back.


Thanks,

	Joerg




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