From: Peter Zijlstra <peterz@infradead.org>
To: Jann Horn <jannh@google.com>,
Linus Torvalds <torvalds@linuxfoundation.org>,
Will Deacon <will@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Dave Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Andrew Morton <akpm@linux-foundation.org>,
Guo Ren <guoren@kernel.org>, David Miller <davem@davemloft.net>
Subject: Re: [PATCH 0/4] munmap() vs unmap_mapping_range()
Date: Thu, 21 Jul 2022 10:37:08 +0200 [thread overview]
Message-ID: <YtkQNA4jkhfEfWzs@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20220708071802.751003711@infradead.org>
On Fri, Jul 08, 2022 at 09:18:02AM +0200, Peter Zijlstra wrote:
> Hi,
>
> These 4 patches implement the suggestion by Linus.
>
> The first patch nukes all architecture implementations of tlb_{start,end}_vma()
> by adding two additional MMU_GATHER config knobs.
>
> DaveM, please clarify the sparc64 case, it seems a little odd to have
> flush_cache_range() but to explicitly not call it at unmap time. It would be
> nice to remove this one special case.
>
> The second patch isn't strictly needed for this series but since I was looking
> at all this, I figured C-SKY didn't make a whole lot of sense. Guo, please
> have a look.
>
> The third patch cleans up the #ifdeffery and provides a single
> tlb_{start,end}_vma() implementation for everyone.
>
> The fourth, and final, patch does the force TLB-flush on VM_PFNMAP thing.
>
> I've had the first three patches exposed to the robots and they've (so far) not
> reported build (or other) fail.
>
What are we doing with these patches? Andrew will you pick them up, or
will I smuggle them in x86/mm or something ?
next prev parent reply other threads:[~2022-07-21 11:07 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-08 7:18 Peter Zijlstra
2022-07-08 7:18 ` [PATCH 1/4] mmu_gather: Remove per arch tlb_{start,end}_vma() Peter Zijlstra
2022-07-08 13:25 ` Will Deacon
2022-07-08 7:18 ` [PATCH 2/4] csky/tlb: Remove tlb_flush() define Peter Zijlstra
2022-07-08 13:31 ` Will Deacon
2022-07-08 7:18 ` [PATCH 3/4] mmu_gather: Let there be one tlb_{start,end}_vma() implementation Peter Zijlstra
2022-07-08 13:32 ` Will Deacon
2022-07-08 7:18 ` [PATCH 4/4] mmu_gather: Force tlb-flush VM_PFNMAP vmas Peter Zijlstra
2022-07-08 13:36 ` Will Deacon
2022-07-08 14:03 ` Peter Zijlstra
2022-07-08 14:04 ` Jann Horn
2022-07-09 8:38 ` Peter Zijlstra
2022-07-11 15:04 ` Jann Horn
2022-07-21 8:37 ` Peter Zijlstra [this message]
2022-07-21 17:46 ` [PATCH 0/4] munmap() vs unmap_mapping_range() Linus Torvalds
2022-07-21 17:52 ` Linus Torvalds
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YtkQNA4jkhfEfWzs@hirez.programming.kicks-ass.net \
--to=peterz@infradead.org \
--cc=airlied@linux.ie \
--cc=akpm@linux-foundation.org \
--cc=daniel@ffwll.ch \
--cc=davem@davemloft.net \
--cc=guoren@kernel.org \
--cc=jannh@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=torvalds@linuxfoundation.org \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox