From: Peter Zijlstra <peterz@infradead.org>
To: Nikita Yushchenko <nikita.yushchenko@virtuozzo.com>
Cc: Will Deacon <will@kernel.org>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Nick Piggin <npiggin@gmail.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
Arnd Bergmann <arnd@arndb.de>, Sam Ravnborg <sam@ravnborg.org>,
x86@kernel.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org, linux-mm@kvack.org,
kernel@openvz.org
Subject: Re: [PATCH/RFC v2 1/3] tlb: mmu_gather: introduce CONFIG_MMU_GATHER_TABLE_FREE_COMMON
Date: Tue, 21 Dec 2021 14:21:26 +0100 [thread overview]
Message-ID: <YcHU1maQkp4VXZvS@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20211218185205.1744125-2-nikita.yushchenko@virtuozzo.com>
On Sat, Dec 18, 2021 at 09:52:04PM +0300, Nikita Yushchenko wrote:
> For architectures that use free_page_and_swap_cache() as their
> __tlb_remove_table(), place that common implementation into
> mm/mmu_gather.c, ifdef'ed by CONFIG_MMU_GATHER_TABLE_FREE_COMMON.
>
> Signed-off-by: Nikita Yushchenko <nikita.yushchenko@virtuozzo.com>
> ---
> arch/Kconfig | 3 +++
> arch/arm/Kconfig | 1 +
> arch/arm/include/asm/tlb.h | 5 -----
> arch/arm64/Kconfig | 1 +
> arch/arm64/include/asm/tlb.h | 5 -----
> arch/x86/Kconfig | 1 +
> arch/x86/include/asm/tlb.h | 14 --------------
> include/asm-generic/tlb.h | 5 +++++
> mm/mmu_gather.c | 10 ++++++++++
> 9 files changed, 21 insertions(+), 24 deletions(-)
>
> diff --git a/arch/Kconfig b/arch/Kconfig
> index d3c4ab249e9c..9eba553cd86f 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -415,6 +415,9 @@ config HAVE_ARCH_JUMP_LABEL_RELATIVE
> config MMU_GATHER_TABLE_FREE
> bool
>
> +config MMU_GATHER_TABLE_FREE_COMMON
> + bool
I don't like that name... The point isn't that it's common, the point is
that the page-table's are backed by pages.
next prev parent reply other threads:[~2021-12-21 13:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-18 18:52 [PATCH/RFC v2 0/3] tlb: mmu_gather: use batched table free if possible Nikita Yushchenko
2021-12-18 18:52 ` [PATCH/RFC v2 1/3] tlb: mmu_gather: introduce CONFIG_MMU_GATHER_TABLE_FREE_COMMON Nikita Yushchenko
2021-12-21 13:21 ` Peter Zijlstra [this message]
2021-12-21 15:42 ` Nikita Yushchenko
2021-12-18 18:52 ` [PATCH/RFC v2 2/3] mm/swap: introduce free_pages_and_swap_cache_nolru() Nikita Yushchenko
2021-12-18 18:52 ` [PATCH/RFC v2 3/3] tlb: mmu_gather: use batched table free if possible Nikita Yushchenko
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