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Tue, 8 Oct 2024 09:12:00 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface MIME-Version: 1.0 Date: Tue, 08 Oct 2024 13:11:29 +0000 From: "Arnd Bergmann" To: "Thomas Gleixner" , "Vincenzo Frascino" , linux-kernel@vger.kernel.org, Linux-Arch , linux-mm@kvack.org Cc: "Andy Lutomirski" , "Jason A . Donenfeld" , "Christophe Leroy" , "Michael Ellerman" , "Nicholas Piggin" , "Naveen N Rao" , "Ingo Molnar" , "Borislav Petkov" , "Dave Hansen" , "H. Peter Anvin" , "Theodore Ts'o" , "Andrew Morton" , "Steven Rostedt" , "Masami Hiramatsu" , "Mathieu Desnoyers" Message-Id: In-Reply-To: <87ldyzubk4.ffs@tglx> References: <20241003152910.3287259-1-vincenzo.frascino@arm.com> <20241003152910.3287259-3-vincenzo.frascino@arm.com> <423e571b-3ef6-4e80-ba81-bf42589a4ba8@app.fastmail.com> <87ldyzubk4.ffs@tglx> Subject: Re: [PATCH v3 2/2] vdso: Introduce vdso/page.h Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: C9EE4180007 X-Stat-Signature: fger4pxrspd9pxkm1exaobgax6nseejr X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1728393122-514470 X-HE-Meta: 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 rtYVJAup dg0lyS3KbwD44L9YTmDCvl5cH+ijayC0xnlWjT4bwNE3DNIhJnqQdKMhYxVs0HeLC8cmI1JUm2dmOV0P7JqVe3Dxn/NGpwZ8j8rwPXU29GusNO/67+N2Tq2WHTy86FyF6CFxBoDR+7CWdLmDcX4xnpt316AuLI8dffg8QZSSZIB3sXIdSk0vuDk6FwRGaIBukMb5Js09cW072TPMTJU4TNZamAkDqaqhYVs22hJA16Up6RiWPgK3yjno4Ml8oHBx5lztas9CDiSaZrpyNYh0kuY9GRBkmvy27otsHy5nUhTCCZmyjnp/aaAfFJMrNrEtAFJ9aBzNXiOUfhmc= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Oct 7, 2024, at 16:23, Thomas Gleixner wrote: > On Fri, Oct 04 2024 at 13:13, Arnd Bergmann wrote: >> On Thu, Oct 3, 2024, at 15:29, Vincenzo Frascino wrote: >>> The VDSO implementation includes headers from outside of the >>> vdso/ namespace. >>> >>> Introduce vdso/page.h to make sure that the generic library >>> uses only the allowed namespace. >>> >>> Note: on a 32-bit architecture UL is an unsigned 32 bit long. Hence when >>> it supports 64-bit phys_addr_t we might end up in situation in which the >>> top 32 bit are cleared. To prevent this issue this patch provides >>> separate macros for PAGE_MASK. >>> >>> Cc: Arnd Bergmann >>> Cc: Andy Lutomirski >>> Cc: Thomas Gleixner >>> Cc: Jason A. Donenfeld >>> Signed-off-by: Vincenzo Frascino >> >> Looks good to me. I would apply this to the asm-generic >> tree for 6.13, but there is one small detail I'm unsure >> about: > > Please don't. We have related changes upcoming for VDSO which would > heavily conflict. I rather take it through my tree. Ok. Vincenzo, in that case please add Reviewed-by: Arnd Bergmann to the two paches when you send v4 to Thomas. Arnd