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Commit 34e8beac authored by Jerome Marchand's avatar Jerome Marchand Committed by Jens Axboe
Browse files

Enhanced partition statistics: sysfs 



Reports enhanced partition statistics in sysfs.

Signed-off-by: default avatarJerome Marchand <jmarchan@redhat.com>
parent a890d62b

fs/partitions/check.c

+19 −3
Original line number Diff line number Diff line
@@ -216,9 +216,25 @@ static ssize_t part_stat_show(struct device *dev, 
{

	struct hd_struct *p = dev_to_part(dev);



	return sprintf(buf, "%8u %8llu %8u %8llu\n",

		       p->ios[0], (unsigned long long)p->sectors[0],

		       p->ios[1], (unsigned long long)p->sectors[1]);

	preempt_disable();

	part_round_stats(p);

	preempt_enable();

	return sprintf(buf,

		"%8lu %8lu %8llu %8u "

		"%8lu %8lu %8llu %8u "

		"%8u %8u %8u"

		"\n",

		part_stat_read(p, ios[READ]),

		part_stat_read(p, merges[READ]),

		(unsigned long long)part_stat_read(p, sectors[READ]),

		jiffies_to_msecs(part_stat_read(p, ticks[READ])),

		part_stat_read(p, ios[WRITE]),

		part_stat_read(p, merges[WRITE]),

		(unsigned long long)part_stat_read(p, sectors[WRITE]),

		jiffies_to_msecs(part_stat_read(p, ticks[WRITE])),

		p->in_flight,

		jiffies_to_msecs(part_stat_read(p, io_ticks)),

		jiffies_to_msecs(part_stat_read(p, time_in_queue)));

}



#ifdef CONFIG_FAIL_MAKE_REQUEST