From: Wei Yang <richardw.yang@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, willy@infradead.org, will@kernel.org,
peterz@infradead.org, Wei Yang <richardw.yang@linux.intel.com>
Subject: [PATCH] mm: remove redundant assignment of entry
Date: Mon, 8 Jul 2019 16:27:40 +0800 [thread overview]
Message-ID: <20190708082740.21111-1-richardw.yang@linux.intel.com> (raw)
Since ptent will not be changed after previous assignment of entry, it
is not necessary to do the assignment again.
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
next reply other threads:[~2019-07-08 8:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-08 8:27 Wei Yang [this message]
2019-07-08 14:42 ` [PATCH] mm: remove redundant assignment of entry Matthew Wilcox
2019-09-14 0:03 ` Wei Yang
2019-09-16 21:15 ` Will Deacon
2019-09-17 2:00 ` Wei Yang
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