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context_tracking: Switch to new static_branch API

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This is much less error-prone than the old code.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/812df7e64f120c5c7c08481f36a8caa9f53b2199.1447361906.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andy Lutomirski 2015-11-12 12:59:01 -08:00 • committed by Ingo Molnar
parent 49b2410631
commit ed11a7f1b3
2 changed files with 4 additions and 4 deletions
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4
include/linux/context_tracking_state.h
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@ -22,12 +22,12 @@ struct context_tracking {
};
#ifdef CONFIG_CONTEXT_TRACKING
extern struct static_key context_tracking_enabled;
extern struct static_key_false context_tracking_enabled;
DECLARE_PER_CPU(struct context_tracking, context_tracking);
static inline bool context_tracking_is_enabled(void)
{
return static_key_false(&context_tracking_enabled);
return static_branch_unlikely(&context_tracking_enabled);
}
static inline bool context_tracking_cpu_is_enabled(void)