linux-kernel - [PATCH 7/9] smp: Do not mark call_function

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Message-Id: <20190613064813.8102-8-namit@vmware.com>
Date:   Wed, 12 Jun 2019 23:48:11 -0700
From:   Nadav Amit <namit@...are.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        Borislav Petkov <bp@...en8.de>, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Nadav Amit <namit@...are.com>, Rik van Riel <riel@...riel.com>
Subject: [PATCH 7/9] smp: Do not mark call_function_data as shared

cfd_data is marked as shared, but although it hold pointers to shared
data structures, it is private per core.

Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Rik van Riel <riel@...riel.com>
Cc: Andy Lutomirski <luto@...nel.org>
Signed-off-by: Nadav Amit <namit@...are.com>
---
 kernel/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/smp.c b/kernel/smp.c
index d9189e4d6464..d5d8dee8e3f3 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -34,7 +34,7 @@ struct call_function_data {
 	cpumask_var_t		cpumask_ipi;
 };
 
-static DEFINE_PER_CPU_SHARED_ALIGNED(struct call_function_data, cfd_data);
+static DEFINE_PER_CPU_ALIGNED(struct call_function_data, cfd_data);
 
 static DEFINE_PER_CPU_SHARED_ALIGNED(struct llist_head, call_single_queue);
 
-- 
2.20.1