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Enhanced partition statistics: sysfs

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Reports enhanced partition statistics in sysfs.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
This commit is contained in:
Jerome Marchand 2008-02-08 11:04:55 +01:00 committed by Jens Axboe
parent a890d62b9e
commit 34e8beac92
1 changed files with 19 additions and 3 deletions
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22
fs/partitions/check.c
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@ -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