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From: "Arnd Bergmann" <arnd@arndb.de>
To: "Thomas Gleixner" <tglx@linutronix.de>,
	"Vincenzo Frascino" <vincenzo.frascino@arm.com>,
	linux-kernel@vger.kernel.org,
	Linux-Arch <linux-arch@vger.kernel.org>,
	linux-mm@kvack.org
Cc: "Andy Lutomirski" <luto@kernel.org>,
	"Jason A . Donenfeld" <Jason@zx2c4.com>,
	"Christophe Leroy" <christophe.leroy@csgroup.eu>,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Naveen N Rao" <naveen@kernel.org>,
	"Ingo Molnar" <mingo@redhat.com>,
	"Borislav Petkov" <bp@alien8.de>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>, "Theodore Ts'o" <tytso@mit.edu>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Steven Rostedt" <rostedt@goodmis.org>,
	"Masami Hiramatsu" <mhiramat@kernel.org>,
	"Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>
Subject: Re: [PATCH v3 2/2] vdso: Introduce vdso/page.h
Date: Tue, 08 Oct 2024 13:11:29 +0000	[thread overview]
Message-ID: <acfd8173-9ee5-460c-92d3-1cb48f8d3fc9@app.fastmail.com> (raw)
In-Reply-To: <87ldyzubk4.ffs@tglx>

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 <arnd@arndb.de>
>>> Cc: Andy Lutomirski <luto@kernel.org>
>>> Cc: Thomas Gleixner <tglx@linutronix.de>
>>> Cc: Jason A. Donenfeld <Jason@zx2c4.com>
>>> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
>>
>> 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 <arnd@arndb.de>

to the two paches when you send v4 to Thomas.

     Arnd

  reply	other threads:[~2024-10-08 13:12 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-03 15:29 [PATCH v3 0/2] vdso: Use only headers from the vdso/ namespace Vincenzo Frascino
2024-10-03 15:29 ` [PATCH v3 1/2] drm: Fix fault format Vincenzo Frascino
2024-10-04 13:21   ` Arnd Bergmann
2024-10-07  6:10     ` Christophe Leroy
2024-10-03 15:29 ` [PATCH v3 2/2] vdso: Introduce vdso/page.h Vincenzo Frascino
2024-10-04  9:07   ` Geert Uytterhoeven
2024-10-04 13:13   ` Arnd Bergmann
2024-10-07 11:01     ` Vincenzo Frascino
2024-10-07 11:06       ` Arnd Bergmann
2024-10-07 11:20         ` Vincenzo Frascino
2024-10-07 16:05           ` H. Peter Anvin
2024-10-07 16:23     ` Thomas Gleixner
2024-10-08 13:11       ` Arnd Bergmann [this message]
2024-10-08 14:20         ` Vincenzo Frascino
2024-10-09  9:53   ` Thomas Gleixner
2024-10-09 10:04     ` Thomas Gleixner
2024-10-09 23:58       ` Michael Ellerman
2024-10-10 12:37         ` Vincenzo Frascino
2024-10-10 12:36       ` Vincenzo Frascino
2024-10-10 12:35     ` Vincenzo Frascino
2024-10-03 16:25 ` [PATCH v3 0/2] vdso: Use only headers from the vdso/ namespace Jason A. Donenfeld

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