From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/include/linux/bottom_half.h | 47 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 kernel/include/linux/bottom_half.h (limited to 'kernel/include/linux/bottom_half.h') diff --git a/kernel/include/linux/bottom_half.h b/kernel/include/linux/bottom_half.h new file mode 100644 index 000000000..8ca938935 --- /dev/null +++ b/kernel/include/linux/bottom_half.h @@ -0,0 +1,47 @@ +#ifndef _LINUX_BH_H +#define _LINUX_BH_H + +#include +#include + +#ifdef CONFIG_PREEMPT_RT_FULL + +extern void local_bh_disable(void); +extern void _local_bh_enable(void); +extern void local_bh_enable(void); +extern void local_bh_enable_ip(unsigned long ip); +extern void __local_bh_disable_ip(unsigned long ip, unsigned int cnt); +extern void __local_bh_enable_ip(unsigned long ip, unsigned int cnt); + +#else + +#ifdef CONFIG_TRACE_IRQFLAGS +extern void __local_bh_disable_ip(unsigned long ip, unsigned int cnt); +#else +static __always_inline void __local_bh_disable_ip(unsigned long ip, unsigned int cnt) +{ + preempt_count_add(cnt); + barrier(); +} +#endif + +static inline void local_bh_disable(void) +{ + __local_bh_disable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET); +} + +extern void _local_bh_enable(void); +extern void __local_bh_enable_ip(unsigned long ip, unsigned int cnt); + +static inline void local_bh_enable_ip(unsigned long ip) +{ + __local_bh_enable_ip(ip, SOFTIRQ_DISABLE_OFFSET); +} + +static inline void local_bh_enable(void) +{ + __local_bh_enable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET); +} +#endif + +#endif /* _LINUX_BH_H */ -- cgit 1.2.3-korg