Re: [PATCH] rcupdate: move synchronize_sched() back to rcupdate.cV2
From: Ingo Molnar
Date: Thu Nov 06 2008 - 01:58:33 EST
* Lai Jiangshan <laijs@xxxxxxxxxxxxxx> wrote:
> this fix remove ugly macro, and increase readability for rcupdate codes
looks good to me, if Paul acks the concept too.
Two small details:
> +++ b/include/linux/rcuclassic.h
> @@ -32,6 +32,7 @@
>
> #ifndef __LINUX_RCUCLASSIC_H
> #define __LINUX_RCUCLASSIC_H
> +#define HAVE_SPECIAL_RCU_BH
please use def_bool to define CONFIG_RCU_HAVE_SPECIAL_RCU_BH
and:
> +#else
> +#define rcu_bh_qsctr_inc(cpu)
> +#define rcu_read_lock_bh() { rcu_read_lock(); local_bh_disable(); }
> +#define rcu_read_unlock_bh() { local_bh_enable(); rcu_read_unlock(); }
> +#endif /* HAVE_SPECIAL_RCU_BH */
use inline functions please. CPP defines should never be used in new
code. (use inlines instead of macros and enums/const instead of
constant #define's)
Ingo
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