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From: Ingo Molnar <mingo@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Mike Galbraith <efault@gmx.de>, Oleg Nesterov <oleg@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH 09/53] sched/headers: Move loadavg related definitions from <linux/sched.h> to <linux/sched/loadavg.h>
Date: Wed,  8 Feb 2017 19:44:40 +0100	[thread overview]
Message-ID: <1486579524-14901-10-git-send-email-mingo@kernel.org> (raw)
In-Reply-To: <1486579524-14901-1-git-send-email-mingo@kernel.org>

Move these bits to <linux/sched/loadavg.h>, to reduce the size and
complexity of <linux/sched.h>.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h         | 27 ---------------------------
 include/linux/sched/loadavg.h | 27 +++++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9c907c5a3f82..1e087cf2cba5 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -71,31 +71,6 @@ struct blk_plug;
 struct filename;
 struct nameidata;
 
-/*
- * These are the constant used to fake the fixed-point load-average
- * counting. Some notes:
- *  - 11 bit fractions expand to 22 bits by the multiplies: this gives
- *    a load-average precision of 10 bits integer + 11 bits fractional
- *  - if you want to count load-averages more often, you need more
- *    precision, or rounding will get you. With 2-second counting freq,
- *    the EXP_n values would be 1981, 2034 and 2043 if still using only
- *    11 bit fractions.
- */
-extern unsigned long avenrun[];		/* Load averages */
-extern void get_avenrun(unsigned long *loads, unsigned long offset, int shift);
-
-#define FSHIFT		11		/* nr of bits of precision */
-#define FIXED_1		(1<<FSHIFT)	/* 1.0 as fixed-point */
-#define LOAD_FREQ	(5*HZ+1)	/* 5 sec intervals */
-#define EXP_1		1884		/* 1/exp(5sec/1min) as fixed-point */
-#define EXP_5		2014		/* 1/exp(5sec/5min) */
-#define EXP_15		2037		/* 1/exp(5sec/15min) */
-
-#define CALC_LOAD(load,exp,n) \
-	load *= exp; \
-	load += n*(FIXED_1-exp); \
-	load >>= FSHIFT;
-
 extern unsigned long total_forks;
 extern int nr_threads;
 DECLARE_PER_CPU(unsigned long, process_counts);
@@ -106,8 +81,6 @@ extern unsigned long nr_iowait(void);
 extern unsigned long nr_iowait_cpu(int cpu);
 extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
 
-extern void calc_global_load(unsigned long ticks);
-
 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
 extern void cpu_load_update_nohz_start(void);
 extern void cpu_load_update_nohz_stop(void);
diff --git a/include/linux/sched/loadavg.h b/include/linux/sched/loadavg.h
index 3ae74be327e8..c392e28ce0ac 100644
--- a/include/linux/sched/loadavg.h
+++ b/include/linux/sched/loadavg.h
@@ -3,4 +3,31 @@
 
 #include <linux/sched.h>
 
+/*
+ * These are the constant used to fake the fixed-point load-average
+ * counting. Some notes:
+ *  - 11 bit fractions expand to 22 bits by the multiplies: this gives
+ *    a load-average precision of 10 bits integer + 11 bits fractional
+ *  - if you want to count load-averages more often, you need more
+ *    precision, or rounding will get you. With 2-second counting freq,
+ *    the EXP_n values would be 1981, 2034 and 2043 if still using only
+ *    11 bit fractions.
+ */
+extern unsigned long avenrun[];		/* Load averages */
+extern void get_avenrun(unsigned long *loads, unsigned long offset, int shift);
+
+#define FSHIFT		11		/* nr of bits of precision */
+#define FIXED_1		(1<<FSHIFT)	/* 1.0 as fixed-point */
+#define LOAD_FREQ	(5*HZ+1)	/* 5 sec intervals */
+#define EXP_1		1884		/* 1/exp(5sec/1min) as fixed-point */
+#define EXP_5		2014		/* 1/exp(5sec/5min) */
+#define EXP_15		2037		/* 1/exp(5sec/15min) */
+
+#define CALC_LOAD(load,exp,n) \
+	load *= exp; \
+	load += n*(FIXED_1-exp); \
+	load >>= FSHIFT;
+
+extern void calc_global_load(unsigned long ticks);
+
 #endif /* _LINUX_SCHED_LOADAVG_H */
-- 
2.7.4

  parent reply	other threads:[~2017-02-08 18:46 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-08 18:44 [PATCH 00/53] sched.h modernization -v2, phase #3: "Move definitions between headers" Ingo Molnar
2017-02-08 18:44 ` [PATCH 01/53] sched/headers: Move scheduler topology interfaces to <linux/sched/topology.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 02/53] sched/headers: Move the 'cpu_idle_type' enum from <linux/sched.h> to <linux/sched/idle.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 03/53] sched/headers: Move the wake_up_if_idle() prototype " Ingo Molnar
2017-02-08 18:44 ` [PATCH 04/53] sched/headers: Move idle polling methods " Ingo Molnar
2017-02-08 18:44 ` [PATCH 05/53] sched/headers: Move the wake-queue types and interfaces from sched.h into <linux/sched/wake_q.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 06/53] sched/headers: Move scheduler clock interfaces to <linux/sched/clock.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 07/53] sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 08/53] sched/headers: Move various ABI definitions to <uapi/linux/sched/types.h> Ingo Molnar
2017-02-08 18:44 ` Ingo Molnar [this message]
2017-02-08 18:44 ` [PATCH 10/53] sched/headers: Move autogroup APIs into <linux/sched/autogroup.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 11/53] sched/headers: Move task->mm handling methods to <linux/sched/mm.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 12/53] sched/headers: Move task->mm coredumping related defines and methods from <linux/sched.h> to <linux/sched/coredump.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 13/53] sched/headers: Move task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 14/53] sched/headers: Move 'struct user_struct' definition and APIs to the new <linux/sched/user.h> header Ingo Molnar
2017-02-08 20:13   ` Linus Torvalds
2017-02-08 21:22     ` Ingo Molnar
2017-02-08 18:44 ` [PATCH 15/53] sched/headers: Move softlockup detector watchdog methods to <linux/nmi.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 16/53] sched/headers: Move 'struct pacct_struct' and 'struct cpu_itimer' form <linux/sched.h> to <linux/sched/signal.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 17/53] sched/headers: Move the cpufreq interfaces to <linux/sched/cpufreq.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 18/53] sched/headers: Move more mm_struct related functionality from <linux/sched.h> to <linux/sched/mm.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 19/53] sched/headers: Move the 'init_mm' declaration from <linux/sched.h> to <linux/mm_types.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 20/53] sched/headers: Move in_vfork() from <linux/sched.h> to <linux/sched/mm.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 21/53] sched/headers: Move the NUMA balancing interfaces from <linux/sched.h> to <linux/sched/numa_balancing.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 22/53] sched/headers: Move the JOBCTL_ defines and methods from <linux/sched.h> to <linux/sched/jobctl.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 23/53] sched/headers: Remove various unrelated headers from <linux/sched.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 24/53] sched/headers: Move CONFIG_TASK_XACCT bits from <linux/sched.h> to <linux/sched/xacct.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 25/53] sched/headers: Move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 26/53] sched/headers: Move the memalloc_noio_*() APIs to <linux/sched/mm.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 27/53] sched/headers: Move task statistics APIs from <linux/sched.h> to <linux/sched/stat.h> Ingo Molnar
2017-02-08 18:44 ` [PATCH 28/53] sched/headers: Move the NOHZ APIs from <linux/sched.h> to <linux/sched/nohz.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 29/53] sched/headers: Move debugging functions from <linux/sched.h> to <linux/sched/debug.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 30/53] sched/headers, time/timekeeping: Move the xtime_update() prototype from <linux/sched.h> to <linux/time.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 31/53] sched/headers: Move <asm/current.h> include from the middle of <linux/sched.h> to the header portion Ingo Molnar
2017-02-08 18:45 ` [PATCH 32/53] sched/headers: Split hotplug CPU interfaces out of <linux/sched.h> into <linux/sched/hotplug.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 33/53] sched/headers: Move task lifetime APIs from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 34/53] sched/headers, RCU: Move rcu_copy_process() from <linux/sched/task.h> to kernel/fork.c Ingo Molnar
2017-02-08 18:45 ` [PATCH 35/53] sched/core: Move, sort and clean up <linux/sched.h> structure predeclarations Ingo Molnar
2017-02-08 18:45 ` [PATCH 36/53] sched/headers: Move the PREEMPT_COUNT defines from <linux/sched.h> to <linux/preempt.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 37/53] sched/headers: Move task-stack related APIs from <linux/sched.h> to <linux/sched/task_stack.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 38/53] sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 39/53] signals: Move signal data types from <linux/signal.h> to <linux/signal_types.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 40/53] mm/headers, sched/headers: Move task related MM types from <linux/mm_types.> to <linux/mm_types_task.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 41/53] sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 42/53] sched/headers: Move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 43/53] sched/headers: Move the task_lock()/unlock() APIs " Ingo Molnar
2017-02-08 18:45 ` [PATCH 44/53] sched/headers: Move cputime functionality from <linux/sched.h> and <linux/cputime.h> into <linux/sched/cputime.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 45/53] sched/headers: Move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 46/53] sched/headers, vfs/execve: Move the do_execve*() prototypes from <linux/sched.h> to <linux/binfmts.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 47/53] sched/headers: Move kstack_end() from <linux/sched.h> to <linux/sched/task_stack.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 48/53] sched/headers: Move exit_files() and exit_itimers() from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 49/53] sched/headers: Move _init() prototypes from <linux/sched.h> to <linux/sched/init.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 50/53] sched/headers, timekeeping: Move the timer tick function prototypes to <linux/timekeeping.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 51/53] sched/headers, mm: Move 'struct tlbflush_unmap_batch' from <linux/sched.h> to <linux/mm_types_task.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 52/53] sched/headers: Move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
2017-02-08 18:45 ` [PATCH 53/53] sched/headers: Move the sched_exec() prototype " Ingo Molnar

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