linux-kernel - Re: Linux 6.11-rc1

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Message-ID: <87mslx44jt.ffs@tglx>
Date: Wed, 31 Jul 2024 23:47:34 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Linus Torvalds <torvalds@...ux-foundation.org>, Peter Zijlstra
 <peterz@...radead.org>
Cc: Guenter Roeck <linux@...ck-us.net>, Jens Axboe <axboe@...nel.dk>, Andy
 Lutomirski <luto@...nel.org>, Ingo Molnar <mingo@...hat.com>, Peter Anvin
 <hpa@...or.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 the arch/x86 maintainers <x86@...nel.org>
Subject: Re: Linux 6.11-rc1

On Wed, Jul 31 2024 at 14:41, Linus Torvalds wrote:
> On Wed, 31 Jul 2024 at 14:26, Peter Zijlstra <peterz@...radead.org> wrote:
>>
>> x86_64 has everything PMD aligned. It *should* never encounter a PTE.
>
> Ahh. I thought it only aligned the beginning, but yeah, I see that
> ALIGN_ENTRY_TEXT_END is also PMD_SIZE aligned.
>
> That smells of wasted memory, but I guess the TLB advantage is worth it.

It definitely is.

Thanks,

        tglx