Messages in this thread | | | Date | Fri, 23 Jul 2021 15:23:22 +0800 | From | Leo Yan <> | Subject | Re: [PATCH v4 11/11] perf auxtrace: Add compat_auxtrace_mmap__{read_head|write_tail} |
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On Wed, Jul 14, 2021 at 09:40:15AM +0100, Russell King (Oracle) wrote: > On Tue, Jul 13, 2021 at 07:13:02PM +0100, Catalin Marinas wrote: > > We could try to clarify E2.2.1 to simply state that naturally aligned > > LDRD/STRD are single-copy atomic without any subsequent statement on the > > translation table. > > I think that clarification would be most helpful. Thanks.
Thanks for the suggestion and confirmation, Russell & Catalin.
If so, I will implement the weak functions for compat_auxtrace_mmap__{read_head|write_tail}; and write the arm/arm64 specific functions with using LDRD/STRD instructions.
For better patches organization, I will use a separate patch set for enabling the compat functions (in particular patches 10, 11/11) in the next spin.
Thanks, Leo
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