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Groups > linux.kernel > #1333013

[PATCH] lib/Kconfig: make PREEMPT_COUNT depend on PREEMPT in DEBUG_ATOMIC_SLEEP

From Yang Shi <yang.shi@linaro.org>
Newsgroups linux.kernel
Subject [PATCH] lib/Kconfig: make PREEMPT_COUNT depend on PREEMPT in DEBUG_ATOMIC_SLEEP
Date 2016-02-12 19:40 +0100
Message-ID <r1qNl-2ew-29@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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When building non-preempt kernel (PREEMPT_NONE), PREEMPT_COUNT is still enabled
if DEBUG_ATOMIC_SLEEP is enabled. But, it sounds not make sense to have
PREEMPT_COUNT set in non-preempt kernel.

So, make PREEMPT_COUNT depend on PREEMPT here.

Signed-off-by: Yang Shi <yang.shi@linaro.org>
---
 lib/Kconfig.debug | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ecb9e75..a5b6e11 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1075,7 +1075,7 @@ config DEBUG_LOCKDEP
 
 config DEBUG_ATOMIC_SLEEP
 	bool "Sleep inside atomic section checking"
-	select PREEMPT_COUNT
+	select PREEMPT_COUNT if PREEMPT
 	depends on DEBUG_KERNEL
 	help
 	  If you say Y here, various routines which may sleep will become very
-- 
2.0.2

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[PATCH] lib/Kconfig: make PREEMPT_COUNT depend on PREEMPT in DEBUG_ATOMIC_SLEEP Yang Shi <yang.shi@linaro.org> - 2016-02-12 19:40 +0100
  Re: [PATCH] lib/Kconfig: make PREEMPT_COUNT depend on PREEMPT in  DEBUG_ATOMIC_SLEEP Peter Zijlstra <peterz@infradead.org> - 2016-02-13 13:20 +0100

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