From: "Johann Klähn" <johann@jklaehn.de>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: perfbook@vger.kernel.org
Subject: [PATCH-perfbook 2/4] defer: Remove leftover manipulation of bottom bit in hazptr.c
Date: Tue, 1 Feb 2022 21:07:49 +0100 [thread overview]
Message-ID: <20220201200751.23589-2-johann@jklaehn.de> (raw)
In-Reply-To: <20220201200751.23589-1-johann@jklaehn.de>
The bottom bit in this implementation is not (no longer?) used to mark deleted
elements, as is also pointed out in one of the quick questions.
Signed-off-by: Johann Klähn <johann@jklaehn.de>
---
CodeSamples/defer/hazptr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/CodeSamples/defer/hazptr.c b/CodeSamples/defer/hazptr.c
index 2621d407..b84391f4 100644
--- a/CodeSamples/defer/hazptr.c
+++ b/CodeSamples/defer/hazptr.c
@@ -119,7 +119,7 @@ void hazptr_scan() //\lnlbl{scan:b}
//\fcvblank
if (!hp)
continue;
- plist[psize++] = (hazptr_head_t *)(hp & ~0x1UL);
+ plist[psize++] = (hazptr_head_t *)hp;
} //\lnlbl{scan:loop:e}
smp_mb(); /* ensure freeing happens after scan. */ //\lnlbl{scan:mb2}
--
2.34.1
next prev parent reply other threads:[~2022-02-01 20:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-01 20:07 [PATCH-perfbook 1/4] cpu: Fix typo Johann Klähn
2022-02-01 20:07 ` Johann Klähn [this message]
2022-02-01 20:07 ` [PATCH-perfbook 3/4] glossary: " Johann Klähn
2022-02-01 20:07 ` [PATCH-perfbook 4/4] glossary: Use more common definition of RAII Johann Klähn
2022-02-01 20:38 ` Paul E. McKenney
2022-02-01 22:16 ` Johann Klähn
2022-02-03 23:34 ` Paul E. McKenney
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