From: Will Deacon <will.deacon@arm.com>
To: Nicholas Piggin <npiggin@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
torvalds@linux-foundation.org, luto@kernel.org, x86@kernel.org,
bp@alien8.de, riel@surriel.com, jannh@google.com,
ascannell@google.com, dave.hansen@intel.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
David Miller <davem@davemloft.net>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
linux-arch@vger.kernel.org
Subject: Re: [RFC PATCH 1/2] mm: move tlb_table_flush to tlb_flush_mmu_free
Date: Thu, 23 Aug 2018 14:40:53 +0100 [thread overview]
Message-ID: <20180823134052.GC1496@brain-police> (raw)
In-Reply-To: <20180823084709.19717-2-npiggin@gmail.com>
On Thu, Aug 23, 2018 at 06:47:08PM +1000, Nicholas Piggin wrote:
> There is no need to call this from tlb_flush_mmu_tlbonly, it
> logically belongs with tlb_flush_mmu_free. This allows some
> code consolidation with a subsequent fix.
>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---
> mm/memory.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
Looks good to me, thanks:
Acked-by: Will Deacon <will.deacon@arm.com>
Will
> diff --git a/mm/memory.c b/mm/memory.c
> index 19f47d7b9b86..7c58310734eb 100644
> --- a/mm/memory.c
> +++ b/mm/memory.c
> @@ -245,9 +245,6 @@ static void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb)
>
> tlb_flush(tlb);
> mmu_notifier_invalidate_range(tlb->mm, tlb->start, tlb->end);
> -#ifdef CONFIG_HAVE_RCU_TABLE_FREE
> - tlb_table_flush(tlb);
> -#endif
> __tlb_reset_range(tlb);
> }
>
> @@ -255,6 +252,9 @@ static void tlb_flush_mmu_free(struct mmu_gather *tlb)
> {
> struct mmu_gather_batch *batch;
>
> +#ifdef CONFIG_HAVE_RCU_TABLE_FREE
> + tlb_table_flush(tlb);
> +#endif
> for (batch = &tlb->local; batch && batch->nr; batch = batch->next) {
> free_pages_and_swap_cache(batch->pages, batch->nr);
> batch->nr = 0;
> --
> 2.17.0
>
next prev parent reply other threads:[~2018-08-23 13:40 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-23 8:47 [RFC PATCH 0/2] minor mmu_gather patches Nicholas Piggin
2018-08-23 8:47 ` [RFC PATCH 1/2] mm: move tlb_table_flush to tlb_flush_mmu_free Nicholas Piggin
2018-08-23 13:40 ` Will Deacon [this message]
2018-09-06 20:29 ` Rik van Riel
2018-09-07 13:44 ` Will Deacon
2018-09-07 14:28 ` Rik van Riel
2018-08-23 8:47 ` [RFC PATCH 2/2] mm: mmu_notifier fix for tlb_end_vma Nicholas Piggin
2018-08-23 12:46 ` Catalin Marinas
2018-08-23 13:41 ` Will Deacon
2018-08-24 13:07 ` [RFC PATCH 2/2] mm: mmu_notifier fix for tlb_end_vma (build failures) Guenter Roeck
2018-08-24 13:10 ` Will Deacon
2018-08-24 13:24 ` Guenter Roeck
2018-08-24 13:34 ` Will Deacon
2018-08-24 13:50 ` Will Deacon
2018-08-24 13:54 ` Guenter Roeck
2018-08-24 14:06 ` Guenter Roeck
2018-08-24 14:25 ` Will Deacon
2018-08-24 18:22 ` Guenter Roeck
2018-08-24 23:32 ` Palmer Dabbelt
2018-08-23 19:15 ` [RFC PATCH 0/2] minor mmu_gather patches Linus Torvalds
2018-08-23 19:37 ` Linus Torvalds
2018-08-23 23:27 ` Will Deacon
2018-08-23 23:42 ` Nicholas Piggin
2018-08-23 23:35 ` Nicholas Piggin
2018-08-24 8:05 ` Peter Zijlstra
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