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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-11-15 14:40:29 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-12-20 15:08:01 +0000
commit4a88abd7b48e8ec8084b1252d0f5ebdab43c2508 (patch)
tree6f2bd56428c4a684c1bd4a06767e78128977c492 /arch/arm/kernel/irq.c
parentf13cd4170ee789f63b3c9585c1ae34e028bd549d (diff)
downloadlwn-4a88abd7b48e8ec8084b1252d0f5ebdab43c2508.tar.gz
lwn-4a88abd7b48e8ec8084b1252d0f5ebdab43c2508.zip
ARM: SMP: provide individual IPI interrupt statistics
This separates out the individual IPI interrupt counts from the total IPI count, which allows better visibility of what IPIs are being used for. Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/irq.c')
-rw-r--r--arch/arm/kernel/irq.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 4e7a7d272212..6276f01df9e4 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -62,6 +62,11 @@ int show_interrupts(struct seq_file *p, void *v)
for (prec = 3, n = 1000; prec < 10 && n <= nr_irqs; prec++)
n *= 10;
+#ifdef CONFIG_SMP
+ if (prec < 4)
+ prec = 4;
+#endif
+
if (i == 0) {
char cpuname[12];