Re: [PATCH V9 1/4] perf/core: Add PERF_SAMPLE_DATA_PAGE_SIZE

[Matthew Wilcox]

On Thu, Nov 12, 2020 at 12:36:45PM +0100, Peter Zijlstra wrote:
> On Thu, Nov 12, 2020 at 10:53:58AM +0100, Peter Zijlstra wrote:
> > You just don't like it because you want me to be purely page-table
> > based.
> 
> How's something like this then? I failed to untangle Power's many MMUs
> though :/

Looks good to me.  Might want to rename

> -__weak u64 arch_perf_get_page_size(struct mm_struct *mm, unsigned long addr)
> +static u64 arch_perf_get_page_size(struct mm_struct *mm, unsigned long addr)

to perf_get_tlb_entry_size() or some such.