From: Wei Yang <richard.weiyang@gmail.com>
To: Wei Yang <richardw.yang@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
willy@infradead.org, will@kernel.org, peterz@infradead.org
Subject: Re: [PATCH] mm: remove redundant assignment of entry
Date: Sat, 14 Sep 2019 00:03:26 +0000 [thread overview]
Message-ID: <20190914000326.h4ruqmyvo3yisf52@master> (raw)
In-Reply-To: <20190708082740.21111-1-richardw.yang@linux.intel.com>
On Mon, Jul 08, 2019 at 04:27:40PM +0800, Wei Yang wrote:
>Since ptent will not be changed after previous assignment of entry, it
>is not necessary to do the assignment again.
>
Sounds this one is lost in the time line :-)
>Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
>---
> mm/memory.c | 1 -
> 1 file changed, 1 deletion(-)
>
>diff --git a/mm/memory.c b/mm/memory.c
>index ddf20bd0c317..d108bb979a08 100644
>--- a/mm/memory.c
>+++ b/mm/memory.c
>@@ -1127,7 +1127,6 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb,
> if (unlikely(details))
> continue;
>
>- entry = pte_to_swp_entry(ptent);
> if (!non_swap_entry(entry))
> rss[MM_SWAPENTS]--;
> else if (is_migration_entry(entry)) {
>--
>2.17.1
--
Wei Yang
Help you, Help me
next prev parent reply other threads:[~2019-09-14 0:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-08 8:27 Wei Yang
2019-07-08 14:42 ` Matthew Wilcox
2019-09-14 0:03 ` Wei Yang [this message]
2019-09-16 21:15 ` Will Deacon
2019-09-17 2:00 ` Wei Yang
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