From: Catalin Marinas <catalin.marinas@arm•com>
To: Yicong Yang <yangyicong@huawei•com>
Cc: mark.rutland@arm•com, wangkefeng.wang@huawei•com,
prime.zeng@hisilicon•com, realmz6@gmail•com,
linux-doc@vger•kernel.org, peterz@infradead•org,
linux-kernel@vger•kernel.org, linux-mm@kvack•org,
punit.agrawal@bytedance•com, linux-riscv@lists•infradead.org,
will@kernel•org, linux-s390@vger•kernel.org,
zhangshiming@oppo•com, lipeifeng@oppo•com, corbet@lwn•net,
x86@kernel•org, Barry Song <21cnbao@gmail•com>,
ryan.roberts@arm•com, arnd@arndb•de, anshuman.khandual@arm•com,
openrisc@lists•librecores.org, darren@os•amperecomputing.com,
Jonathan.Cameron@huawei•com, yangyicong@hisilicon•com,
linux-arm-kernel@lists•infradead.org, guojian@oppo•com,
xhao@linux•alibaba.com, linux-mips@vger•kernel.org,
huzhanyuan@oppo•com, akpm@linux-foundation•org,
linuxppc-dev@lists•ozlabs.org
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 18:25 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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