linux-kernel - Re: [patch] BFS 420: remove for_each_flag

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Message-ID: <CAJd=RBAa4Kq=Ev72-mKfmG7OW6u7pOdZAaDvKLuZYjAX6JLWgw@mail.gmail.com>
Date:	Thu, 24 May 2012 19:44:14 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>,
	Hillf Danton <dhillf@...il.com>
Subject: Re: [patch] BFS 420: remove for_each_flag_domain

On Wed, May 23, 2012 at 8:56 PM, Hillf Danton <dhillf@...il.com> wrote:
> The macro, for_each_flag_domain, is no longer used, so remove.
>
> --- a/kernel/sched/bfs.c        Mon May 14 20:50:38 2012
> +++ b/kernel/sched/bfs.c        Wed May 23 20:09:32 2012
> @@ -4951,42 +4951,6 @@ void select_nohz_load_balancer(int stop_
>  }
>
>  void set_cpu_sd_state_idle(void) {}
> -#if defined(CONFIG_SCHED_MC) || defined(CONFIG_SCHED_SMT)
> -/**
> - * lowest_flag_domain - Return lowest sched_domain containing flag.
> - * @cpu:       The cpu whose lowest level of sched domain is to
> - *             be returned.
> - * @flag:      The flag to check for the lowest sched_domain
> - *             for the given cpu.
> - *
> - * Returns the lowest sched_domain of a cpu which contains the given flag.
> - */
> -static inline struct sched_domain *lowest_flag_domain(int cpu, int flag)
> -{
> -       struct sched_domain *sd;
> -
> -       for_each_domain(cpu, sd)
> -               if (sd && (sd->flags & flag))
> -                       break;
> -
> -       return sd;
> -}
> -
> -/**
> - * for_each_flag_domain - Iterates over sched_domains containing the flag.
> - * @cpu:       The cpu whose domains we're iterating over.
> - * @sd:                variable holding the value of the power_savings_sd
> - *             for cpu.
> - * @flag:      The flag to filter the sched_domains to be iterated.
> - *
> - * Iterates over all the scheduler domains for a given cpu that has the 'flag'
> - * set, starting from the lowest sched_domain to the highest.
> - */
> -#define for_each_flag_domain(cpu, sd, flag) \
> -       for (sd = lowest_flag_domain(cpu, flag); \
> -               (sd && (sd->flags & flag)); sd = sd->parent)
> -
> -#endif /*  (CONFIG_SCHED_MC || CONFIG_SCHED_SMT) */
>
>  static inline void resched_cpu(int cpu)
>  {
> --
--
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