Re: [PATCHv11 2/4] genirq: Provide a snapshot mechanism for interrupt statistics

From: Bitao Hu
Date: Wed Mar 06 2024 - 06:09:42 EST


Hi,

On 2024/3/6 00:57, Thomas Gleixner wrote:

diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index 2531f3496ab6..a28e5ac5fc79 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -108,6 +108,10 @@ config GENERIC_IRQ_MATRIX_ALLOCATOR
config GENERIC_IRQ_RESERVATION_MODE
bool

+# Snapshot for interrupt statistics
+config GENERIC_IRQ_STAT_SNAPSHOT
+ bool
+
# Support forced irq threading
config IRQ_FORCED_THREADING
bool
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 49f652674bd8..899b69fcb598 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1032,6 +1032,7 @@ config SOFTLOCKUP_DETECTOR
config SOFTLOCKUP_DETECTOR_INTR_STORM
bool "Detect Interrupt Storm in Soft Lockups"
depends on SOFTLOCKUP_DETECTOR && IRQ_TIME_ACCOUNTING
+ select GENERIC_IRQ_STAT_SNAPSHOT

This goes into the patch which adds the lockup detector parts.


OK, I will implement this in the next version.

Best Regards,
Bitao Hu