From: Catalin Marinas <catalin.marinas@arm.com>
To: Yicong Yang <yangyicong@huawei.com>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-arm-kernel@lists.infradead.org, x86@kernel.org,
mark.rutland@arm.com, ryan.roberts@arm.com, will@kernel.org,
anshuman.khandual@arm.com, linux-doc@vger.kernel.org,
corbet@lwn.net, peterz@infradead.org, arnd@arndb.de,
punit.agrawal@bytedance.com, linux-kernel@vger.kernel.org,
darren@os.amperecomputing.com, yangyicong@hisilicon.com,
huzhanyuan@oppo.com, lipeifeng@oppo.com, zhangshiming@oppo.com,
guojian@oppo.com, realmz6@gmail.com, linux-mips@vger.kernel.org,
openrisc@lists.librecores.org, linuxppc-dev@lists.ozlabs.org,
linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
Barry Song <21cnbao@gmail.com>,
wangkefeng.wang@huawei.com, xhao@linux.alibaba.com,
prime.zeng@hisilicon.com, Jonathan.Cameron@huawei.com
Subject: Re: [PATCH v11 3/4] mm/tlbbatch: Introduce arch_flush_tlb_batched_pending()
Date: Fri, 21 Jul 2023 19:24:34 +0100 [thread overview]
Message-ID: <ZLrNYtekYsMFZuVK@arm.com> (raw)
In-Reply-To: <20230717131004.12662-4-yangyicong@huawei.com>
On Mon, Jul 17, 2023 at 09:10:03PM +0800, Yicong Yang wrote:
> From: Yicong Yang <yangyicong@hisilicon.com>
>
> Currently we'll flush the mm in flush_tlb_batched_pending() to
> avoid race between reclaim unmaps pages by batched TLB flush
> and mprotect/munmap/etc. Other architectures like arm64 may
> only need a synchronization barrier(dsb) here rather than
> a full mm flush. So add arch_flush_tlb_batched_pending() to
> allow an arch-specific implementation here. This intends no
> functional changes on x86 since still a full mm flush for
> x86.
>
> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
next prev parent reply other threads:[~2023-07-21 18:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-17 13:10 [PATCH v11 0/4] arm64: support batched/deferred tlb shootdown during page reclamation/migration Yicong Yang
2023-07-17 13:10 ` [PATCH v11 1/4] mm/tlbbatch: Introduce arch_tlbbatch_should_defer() Yicong Yang
2023-07-21 18:23 ` Catalin Marinas
2023-07-17 13:10 ` [PATCH v11 2/4] mm/tlbbatch: Rename and extend some functions Yicong Yang
2023-07-21 18:24 ` Catalin Marinas
2023-07-17 13:10 ` [PATCH v11 3/4] mm/tlbbatch: Introduce arch_flush_tlb_batched_pending() Yicong Yang
2023-07-21 18:24 ` Catalin Marinas [this message]
2023-07-17 13:10 ` [PATCH v11 4/4] arm64: support batched/deferred tlb shootdown during page reclamation/migration Yicong Yang
2023-07-21 18:25 ` Catalin Marinas
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