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Subject[PATCH 3/5] cputime: allow irq time accounting to be selected as an option
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From: Rik van Riel <riel@redhat.com>

Allow CONFIG_IRQ_TIME_ACCOUNTING to be selected as an option, on top
of CONFIG_VIRT_CPU_ACCOUNTING_GEN (and potentially others?).

This allows for the irq time accounting code to be used with nohz_idle
CPUs, which is how several distributions ship their kernels. Using the
same code for several timer modes also allows us to drop duplicate code.

Signed-off-by: Rik van Riel <riel@redhat.com>
---
init/Kconfig | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index 0dfd09d54c65..4c7ee4f136cf 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -375,9 +375,11 @@ config VIRT_CPU_ACCOUNTING_GEN

If unsure, say N.

+endchoice
+
config IRQ_TIME_ACCOUNTING
bool "Fine granularity task level IRQ time accounting"
- depends on HAVE_IRQ_TIME_ACCOUNTING && !NO_HZ_FULL
+ depends on HAVE_IRQ_TIME_ACCOUNTING && !VIRT_CPU_ACCOUNTING_NATIVE
help
Select this option to enable fine granularity task irq time
accounting. This is done by reading a timestamp on each
@@ -386,8 +388,6 @@ config IRQ_TIME_ACCOUNTING

If in doubt, say N here.

-endchoice
-
config BSD_PROCESS_ACCT
bool "BSD Process Accounting"
depends on MULTIUSER
--
2.5.5
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