Neil Brown [off-list ref] wrote:

On Sunday June 15, akpm@digeo.com wrote:

quoted

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.71/2.5.71-mm1/


Mainly a resync.

. Manfred sent me a revised unmap-page-debugging patch which promptly
  broke.  All slab changes have been dropped out so he can have a clear run
  at that.

. New toy.  Called, for the lack of a better name, "sleepometer":

New toy seems to be lacking mainspring...

In particular,  sleepo.h cannot be found :-(

oops.


#ifndef SLEEPOMETER_H
#define SLEEPOMETER_H

#include <linux/spinlock.h>
#include <asm/linkage.h>

struct sleepo_data {
	spinlock_t lock;
	unsigned long nr_sleeps;
	unsigned long long total_usecs;
	unsigned long long max_usecs;
	const char *file;
	const char *sleep_type;
	int line;
	struct sleepo_data *next;
};

void sleepo_io_schedule(void);
long sleepo_io_schedule_timeout(long timeout);
asmlinkage void sleepo_schedule(void);
void sleepo_preempt_schedule(void);
signed long sleepo_schedule_timeout(signed long timeout);
void sleepo_begin(const char *file, int line,
		const char *sleep_type, struct sleepo_data *sd);
void sleepo_end(struct sleepo_data *sd);
void sleepo_start(const char *file, int line,
		const char *sleep_type, struct sleepo_data *sd);
void sleepo_stop(struct sleepo_data *sd);

#define schedule()							\
	do {								\
		static struct sleepo_data sd;				\
									\
		sleepo_start(__FILE__, __LINE__, "schedule", &sd);	\
		sleepo_schedule();					\
		sleepo_stop(&sd);					\
	} while (0)

#define preempt_schedule()						\
	do {								\
		static struct sleepo_data sd;				\
									\
		sleepo_start(__FILE__, __LINE__, "preempt_schedule" &sd);\
		sleepo_preempt_schedule();				\
		sleepo_stop(&sd);					\
	} while (0)

#define io_schedule()							\
	do {								\
		static struct sleepo_data sd;				\
									\
		sleepo_start(__FILE__, __LINE__, "io_schedule", &sd);	\
		sleepo_io_schedule();					\
		sleepo_stop(&sd);					\
	} while (0)

#define schedule_timeout(t)						\
	({								\
		static struct sleepo_data sd;				\
		long ret;						\
									\
		sleepo_start(__FILE__, __LINE__, "schedule_timeout", &sd);\
		ret = sleepo_schedule_timeout(t);			\
		sleepo_stop(&sd);					\
		ret;							\
	})

#define io_schedule_timeout(t)						\
	({								\
		static struct sleepo_data sd;				\
		long ret;						\
									\
		sleepo_start(__FILE__, __LINE__, "io_schedule_timeout", &sd);\
		ret = sleepo_io_schedule_timeout(t);			\
		sleepo_stop(&sd);					\
		ret;							\
	})

#endif		/* SLEEPOMETER_H */

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