From: Alexei Lozovsky <me@ilammy.net>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Alexey Dobriyan <adobriyan@gmail.com>,
Christoph Lameter <cl@linux.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org
Subject: [PATCH 1/7] genirq: Use unsigned int for irqs_sum
Date: Sat, 11 Sep 2021 12:48:02 +0900 [thread overview]
Message-ID: <20210911034808.24252-2-me@ilammy.net> (raw)
In-Reply-To: <20210911034808.24252-1-me@ilammy.net>
It's read as unsigned int via kstat_cpu_irqs_sum() for /proc/stat.
There is no point in having this counter wider than necessary.
Signed-off-by: Alexei Lozovsky <me@ilammy.net>
---
include/linux/kernel_stat.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 44ae1a7eb9e3..72818fb39ae8 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -36,7 +36,7 @@ struct kernel_cpustat {
};
struct kernel_stat {
- unsigned long irqs_sum;
+ unsigned int irqs_sum;
unsigned int softirqs[NR_SOFTIRQS];
};
--
2.25.1
next prev parent reply other threads:[~2021-09-11 3:48 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-10 8:53 /proc/stat interrupt counter wrap-around Alexei Lozovsky
2021-09-11 3:48 ` [PATCH 0/7] proc/stat: Maintain monotonicity of "intr" and "softirq" Alexei Lozovsky
2021-09-11 3:48 ` Alexei Lozovsky [this message]
2021-09-11 3:48 ` [PATCH 2/7] powerpc/irq: arch_irq_stat_cpu() returns unsigned int Alexei Lozovsky
2021-09-11 3:48 ` [PATCH 3/7] x86/irq: " Alexei Lozovsky
2021-09-11 3:48 ` [PATCH 4/7] x86/irq: arch_irq_stat() " Alexei Lozovsky
2021-09-11 3:48 ` [PATCH 5/7] proc/stat: Use unsigned int for "intr" sum Alexei Lozovsky
2021-09-11 3:48 ` [PATCH 6/7] proc/stat: Use unsigned int for "softirq" sum Alexei Lozovsky
2021-09-11 3:48 ` [PATCH 7/7] docs: proc.rst: stat: Note the interrupt counter wrap-around Alexei Lozovsky
2021-09-11 3:59 ` Randy Dunlap
2021-09-12 9:30 ` [PATCH 0/7] proc/stat: Maintain monotonicity of "intr" and "softirq" Alexey Dobriyan
2021-09-12 12:37 ` Alexei Lozovsky
2021-09-14 14:11 ` Thomas Gleixner
2021-09-15 4:24 ` Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 00/12] " Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 01/12] genirq: Use READ_ONCE for IRQ counter reads Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 02/12] genirq: Use unsigned long for IRQ counters Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 03/12] powerpc/irq: Use READ_ONCE for IRQ counter reads Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 04/12] powerpc/irq: Use unsigned long for IRQ counters Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 05/12] powerpc/irq: Use unsigned long for IRQ counter sum Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 06/12] x86/irq: Use READ_ONCE for IRQ counter reads Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 07/12] x86/irq: Use unsigned long for IRQ counters Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 08/12] x86/irq: Use unsigned long for IRQ counters more Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 09/12] x86/irq: Use unsigned long for IRQ counter sum Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 10/12] proc/stat: Use unsigned long for "intr" sum Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 11/12] proc/stat: Use unsigned long for "softirq" sum Alexei Lozovsky
2021-09-15 17:58 ` [PATCH v2 12/12] docs: proc.rst: stat: Note the interrupt counter wrap-around Alexei Lozovsky
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