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From: Nadav Amit <namit@vmware.com>
To: Peter Zijlstra <peterz@infradead.org>, Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@intel.com>,
	Ingo Molnar <mingo@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	Nadav Amit <namit@vmware.com>, Rik van Riel <riel@surriel.com>
Subject: [RFC PATCH v2 07/12] smp: Do not mark call_function_data as shared
Date: Thu, 30 May 2019 23:36:40 -0700	[thread overview]
Message-ID: <20190531063645.4697-8-namit@vmware.com> (raw)
In-Reply-To: <20190531063645.4697-1-namit@vmware.com>

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

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

diff --git a/kernel/smp.c b/kernel/smp.c
index 6b411ee86ef6..f1a358f9c34c 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -33,7 +33,7 @@ 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(struct call_function_data, cfd_data);
 
 static DEFINE_PER_CPU_SHARED_ALIGNED(struct llist_head, call_single_queue);
 
-- 
2.20.1


  parent reply	other threads:[~2019-05-31  6:37 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-31  6:36 [RFC PATCH v2 00/12] x86: Flush remote TLBs concurrently and async Nadav Amit
2019-05-31  6:36 ` [RFC PATCH v2 01/12] smp: Remove smp_call_function() and on_each_cpu() return values Nadav Amit
2019-05-31  6:36 ` [RFC PATCH v2 02/12] smp: Run functions concurrently in smp_call_function_many() Nadav Amit
2019-05-31  6:36 ` [RFC PATCH v2 03/12] x86/mm/tlb: Refactor common code into flush_tlb_on_cpus() Nadav Amit
2019-05-31  6:36 ` [RFC PATCH v2 04/12] x86/mm/tlb: Flush remote and local TLBs concurrently Nadav Amit
2019-05-31  6:36 ` Nadav Amit
2019-05-31  6:36   ` [Xen-devel] " Nadav Amit
2019-05-31 11:48   ` Juergen Gross
2019-05-31 11:48     ` [Xen-devel] " Juergen Gross
2019-05-31 19:44     ` Nadav Amit
2019-05-31 19:44       ` [Xen-devel] " Nadav Amit
2019-05-31 19:44     ` Nadav Amit via Virtualization
2019-05-31 19:44     ` Nadav Amit
2019-05-31 11:48   ` Juergen Gross
2019-05-31 11:48   ` Juergen Gross
2019-05-31  6:36 ` Nadav Amit via Virtualization
2019-05-31  6:36 ` [RFC PATCH v2 05/12] x86/mm/tlb: Optimize local TLB flushes Nadav Amit
2019-05-31  6:36 ` [RFC PATCH v2 06/12] KVM: x86: Provide paravirtualized flush_tlb_multi() Nadav Amit
2019-05-31  6:36 ` Nadav Amit [this message]
2019-05-31 10:17   ` [RFC PATCH v2 07/12] smp: Do not mark call_function_data as shared Peter Zijlstra
2019-05-31 17:50     ` Nadav Amit
2019-05-31  6:36 ` [RFC PATCH v2 08/12] x86/tlb: Privatize cpu_tlbstate Nadav Amit
2019-05-31 18:48   ` Andy Lutomirski
2019-05-31 19:42     ` Nadav Amit
2019-05-31  6:36 ` [RFC PATCH v2 09/12] x86/apic: Use non-atomic operations when possible Nadav Amit
2019-05-31  6:36 ` [RFC PATCH v2 10/12] smp: Enable data inlining for inter-processor function call Nadav Amit
2019-05-31  6:36 ` [RFC PATCH v2 11/12] x86/mm/tlb: Use async and inline messages for flushing Nadav Amit
2019-05-31 10:57   ` Peter Zijlstra
2019-05-31 18:29     ` Nadav Amit
2019-05-31 19:20       ` Jann Horn
2019-05-31 20:04         ` Nadav Amit
2019-05-31 20:37           ` Jann Horn
2019-05-31 18:44     ` Andy Lutomirski
2019-05-31 19:31       ` Nadav Amit
2019-05-31 20:13         ` Dave Hansen
2019-05-31 20:37           ` Andy Lutomirski
2019-05-31 20:42             ` Nadav Amit
2019-05-31 21:06             ` Dave Hansen
2019-05-31 21:14   ` Andy Lutomirski
2019-05-31 21:33     ` Nadav Amit
2019-05-31 21:47       ` Andy Lutomirski
2019-05-31 22:07         ` Nadav Amit
2019-06-07  5:28           ` Nadav Amit
2019-06-07 16:42             ` Andy Lutomirski
2019-05-31  6:36 ` [RFC PATCH v2 12/12] x86/mm/tlb: Reverting the removal of flush_tlb_info from stack Nadav Amit

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