diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-03-09 09:55:56 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2021-03-17 16:34:10 +0100 |
| commit | 8b1c04acad082dec76f3f8f7e1fa13493d6cbb79 (patch) | |
| tree | 9becfebba6a7262758f353268c9a8d6d85fd1b59 /include/linux/bottom_half.h | |
| parent | f02fc963e91160e7343933823e8b73a0b2ab0a16 (diff) | |
softirq: Make softirq control and processing RT aware
Provide a local lock based serialization for soft interrupts on RT which
allows the local_bh_disabled() sections and servicing soft interrupts to be
preemptible.
Provide the necessary inline helpers which allow to reuse the bulk of the
softirq processing code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210309085727.426370483@linutronix.de
Diffstat (limited to 'include/linux/bottom_half.h')
| -rw-r--r-- | include/linux/bottom_half.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/bottom_half.h b/include/linux/bottom_half.h index a19519f4241d..e4dd613a070e 100644 --- a/include/linux/bottom_half.h +++ b/include/linux/bottom_half.h @@ -4,7 +4,7 @@ #include <linux/preempt.h> -#ifdef CONFIG_TRACE_IRQFLAGS +#if defined(CONFIG_PREEMPT_RT) || defined(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) |