From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: Arnd Bergmann <arnd@arndb.de>,
Thomas Gleixner <tglx@linutronix.de>,
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, 8 Oct 2024 15:20:33 +0100 [thread overview]
Message-ID: <db160fbd-ba7a-4cd0-88ed-2970a90c209b@arm.com> (raw)
In-Reply-To: <acfd8173-9ee5-460c-92d3-1cb48f8d3fc9@app.fastmail.com>
On 08/10/2024 14:11, Arnd Bergmann wrote:
> 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.
>
Thank you Arnd and Thomas,
I am completing the testing and will do that.
> Arnd
--
Regards,
Vincenzo
next prev parent reply other threads:[~2024-10-08 14:20 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
2024-10-08 14:20 ` Vincenzo Frascino [this message]
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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