linux-kernel - [PATCH 2/3] nohz: Drop generic vtime obsolete dependency on CONFIG

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Date:	Wed,  2 Oct 2013 14:37:54 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Kevin Hilman <khilman@...aro.org>,
	Russell King <rmk@....linux.org.uk>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Arm Linux <linux-arm-kernel@...ts.infradead.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: [PATCH 2/3] nohz: Drop generic vtime obsolete dependency on CONFIG_64BIT

From: Kevin Hilman <khilman@...aro.org>

The CONFIG_64BIT requirement on vtime can finally be removed
since we now depend on HAVE_VIRT_CPU_ACCOUNTING_GEN which
already takes care of the arch ability to handle nsecs based
cputime_t safely.

Signed-off-by: Kevin Hilman <khilman@...aro.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Russell King <rmk@....linux.org.uk>
Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: Arm Linux <linux-arm-kernel@...ts.infradead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
---
 init/Kconfig        | 2 +-
 kernel/time/Kconfig | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index 68c1a0e..841e79c 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -354,7 +354,7 @@ config VIRT_CPU_ACCOUNTING_NATIVE
 
 config VIRT_CPU_ACCOUNTING_GEN
 	bool "Full dynticks CPU time accounting"
-	depends on HAVE_CONTEXT_TRACKING && 64BIT
+	depends on HAVE_CONTEXT_TRACKING
 	depends on HAVE_VIRT_CPU_ACCOUNTING_GEN
 	select VIRT_CPU_ACCOUNTING
 	select CONTEXT_TRACKING
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index f148475..3ce6e8c 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -100,7 +100,6 @@ config NO_HZ_FULL
 	# RCU_USER_QS dependency
 	depends on HAVE_CONTEXT_TRACKING
 	# VIRT_CPU_ACCOUNTING_GEN dependency
-	depends on 64BIT
 	depends on HAVE_VIRT_CPU_ACCOUNTING_GEN
 	select NO_HZ_COMMON
 	select RCU_USER_QS
-- 
1.8.3.1

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