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| author | Frederic Weisbecker <frederic@kernel.org> | 2020-12-02 12:57:29 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-12-02 20:20:04 +0100 |
| commit | 2b91ec9f551b56751cde48792f1c0a1130358844 (patch) | |
| tree | e43dcbee5218a9c9e72735b3000a95d04288d37b /arch/s390/Kconfig | |
| parent | 7197688b2006357da75a014e0a76be89ca9c2d46 (diff) | |
| download | lwn-2b91ec9f551b56751cde48792f1c0a1130358844.tar.gz lwn-2b91ec9f551b56751cde48792f1c0a1130358844.zip | |
s390/vtime: Use the generic IRQ entry accounting
s390 has its own version of IRQ entry accounting because it doesn't
account the idle time the same way the other architectures do. Only
the actual idle sleep time is accounted as idle time, the rest of the
idle task execution is accounted as system time.
Make the generic IRQ entry accounting aware of architectures that have
their own way of accounting idle time and convert s390 to use it.
This prepares s390 to get involved in further consolidations of IRQ
time accounting.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201202115732.27827-3-frederic@kernel.org
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 4a2a12be04c9..6f1fdcd3b5db 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -181,6 +181,7 @@ config S390 select HAVE_RSEQ select HAVE_SYSCALL_TRACEPOINTS select HAVE_VIRT_CPU_ACCOUNTING + select HAVE_VIRT_CPU_ACCOUNTING_IDLE select IOMMU_HELPER if PCI select IOMMU_SUPPORT if PCI select MODULES_USE_ELF_RELA |