/* CLOCK_MONOTONIC vs CLOCK_MONOTONIC_RAW skew test
 *		by: john stultz (johnstul@us.ibm.com)
 *		    John Stultz <john.stultz@linaro.org>
 *		(C) Copyright IBM 2012
 *		(C) Copyright Linaro Limited 2015
 *		Licensed under the GPLv2
 *
 *  To build:
 *	$ gcc raw_skew.c -o raw_skew -lrt
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 */

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/timex.h>
#include <time.h>
#ifdef KTEST
#include "../kselftest.h"
#else
static inline int ksft_exit_pass(void)
{
	exit(0);
}
static inline int ksft_exit_fail(void)
{
	exit(1);
}
#endif


#define CLOCK_MONOTONIC_RAW		4
#define NSEC_PER_SEC 1000000000LL

#define shift_right(x, s) ({		\
	__typeof__(x) __x = (x);	\
	__typeof__(s) __s = (s);	\
	__x < 0 ? -(-__x >> __s) : __x >> __s; \
})

long long llabs(long long val)
{
	if (val < 0)
		val = -val;
	return val;
}

unsigned long long ts_to_nsec(struct timespec ts)
{
	return ts.tv_sec * NSEC_PER_SEC + ts.tv_nsec;
}

struct timespec nsec_to_ts(long long ns)
{
	struct timespec ts;

	ts.tv_sec = ns/NSEC_PER_SEC;
	ts.tv_nsec = ns%NSEC_PER_SEC;
	return ts;
}

long long diff_timespec(struct timespec start, struct timespec end)
{
	long long start_ns, end_ns;

	start_ns = ts_to_nsec(start);
	end_ns = ts_to_nsec(end);
	return end_ns - start_ns;
}

void get_monotonic_and_raw(struct timespec *mon, struct timespec *raw)
{
	struct timespec start, mid, end;
	long long diff = 0, tmp;
	int i;

	for (i = 0; i < 3; i++) {
		long long newdiff;

		clock_gettime(CLOCK_MONOTONIC, &start);
		clock_gettime(CLOCK_MONOTONIC_RAW, &mid);
		clock_gettime(CLOCK_MONOTONIC, &end);

		newdiff = diff_timespec(start, end);
		if (diff == 0 || newdiff < diff) {
			diff = newdiff;
			*raw = mid;
			tmp = (ts_to_nsec(start) + ts_to_nsec(end))/2;
			*mon = nsec_to_ts(tmp);
		}
	}
}

int main(int argv, char **argc)
{
	struct timespec mon, raw, start, end;
	long long delta1, delta2, interval, eppm, ppm;
	struct timex tx1, tx2;

	setbuf(stdout, NULL);

	if (clock_gettime(CLOCK_MONOTONIC_RAW, &raw)) {
		printf("ERR: NO CLOCK_MONOTONIC_RAW\n");
		return -1;
	}

	tx1.modes = 0;
	adjtimex(&tx1);
	get_monotonic_and_raw(&mon, &raw);
	start = mon;
	delta1 = diff_timespec(mon, raw);

	if (tx1.offset)
		printf("WARNING: ADJ_OFFSET in progress, this will cause inaccurate results\n");

	printf("Estimating clock drift: ");
	sleep(120);

	get_monotonic_and_raw(&mon, &raw);
	end = mon;
	tx2.modes = 0;
	adjtimex(&tx2);
	delta2 = diff_timespec(mon, raw);

	interval = diff_timespec(start, end);

	/* calculate measured ppm between MONOTONIC and MONOTONIC_RAW */
	eppm = ((delta2-delta1)*NSEC_PER_SEC)/interval;
	eppm = -eppm;
	printf("%lld.%i(est)", eppm/1000, abs((int)(eppm%1000)));

	/* Avg the two actual freq samples adjtimex gave us */
	ppm = (tx1.freq + tx2.freq) * 1000 / 2;
	ppm = (long long)tx1.freq * 1000;
	ppm = shift_right(ppm, 16);
	printf(" %lld.%i(act)", ppm/1000, abs((int)(ppm%1000)));

	if (llabs(eppm - ppm) > 1000) {
		printf("	[FAILED]\n");
		return ksft_exit_fail();
	}
	printf("	[OK]\n");
	return  ksft_exit_pass();
}
0355e1876c64431f3d5802f95b3d75'>Kconfig</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='c929ea0b910355e1876c64431f3d5802f95b3d75'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Kinglong Mee &lt;kinglongmee@gmail.com&gt;</td><td class='right'>2017-01-20 16:48:39 +0800</td></tr>
<tr><th>committer</th><td>Trond Myklebust &lt;trond.myklebust@primarydata.com&gt;</td><td class='right'>2017-01-24 15:29:24 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/aoa/fabrics/Kconfig?h=nds-private-remove&amp;id=c929ea0b910355e1876c64431f3d5802f95b3d75'>c929ea0b910355e1876c64431f3d5802f95b3d75</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/aoa/fabrics/Kconfig?id=c929ea0b910355e1876c64431f3d5802f95b3d75'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=c929ea0b910355e1876c64431f3d5802f95b3d75'>94339f18c2be5b9308b9f44ac8b450fe58bcc645</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/aoa/fabrics/Kconfig?h=nds-private-remove&amp;id=c929ea0b910355e1876c64431f3d5802f95b3d75'>sound/aoa/fabrics/Kconfig</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/aoa/fabrics/Kconfig?h=nds-private-remove&amp;id=a430607b2ef7c3be090f88c71cfcb1b3988aa7c0'>a430607b2ef7c3be090f88c71cfcb1b3988aa7c0</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/aoa/fabrics/Kconfig?h=nds-private-remove&amp;id=c929ea0b910355e1876c64431f3d5802f95b3d75&amp;id2=a430607b2ef7c3be090f88c71cfcb1b3988aa7c0'>diff</a>)</td></tr></table>
<div class='commit-subject'>SUNRPC: cleanup ida information when removing sunrpc module</div><div class='commit-msg'>After removing sunrpc module, I get many kmemleak information as,
unreferenced object 0xffff88003316b1e0 (size 544):
  comm "gssproxy", pid 2148, jiffies 4294794465 (age 4200.081s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [&lt;ffffffffb0cfb58a&gt;] kmemleak_alloc+0x4a/0xa0
    [&lt;ffffffffb03507fe&gt;] kmem_cache_alloc+0x15e/0x1f0
    [&lt;ffffffffb0639baa&gt;] ida_pre_get+0xaa/0x150
    [&lt;ffffffffb0639cfd&gt;] ida_simple_get+0xad/0x180
    [&lt;ffffffffc06054fb&gt;] nlmsvc_lookup_host+0x4ab/0x7f0 [lockd]
    [&lt;ffffffffc0605e1d&gt;] lockd+0x4d/0x270 [lockd]
    [&lt;ffffffffc06061e5&gt;] param_set_timeout+0x55/0x100 [lockd]
    [&lt;ffffffffc06cba24&gt;] svc_defer+0x114/0x3f0 [sunrpc]
    [&lt;ffffffffc06cbbe7&gt;] svc_defer+0x2d7/0x3f0 [sunrpc]
    [&lt;ffffffffc06c71da&gt;] rpc_show_info+0x8a/0x110 [sunrpc]
    [&lt;ffffffffb044a33f&gt;] proc_reg_write+0x7f/0xc0
    [&lt;ffffffffb038e41f&gt;] __vfs_write+0xdf/0x3c0
    [&lt;ffffffffb0390f1f&gt;] vfs_write+0xef/0x240
    [&lt;ffffffffb0392fbd&gt;] SyS_write+0xad/0x130
    [&lt;ffffffffb0d06c37&gt;] entry_SYSCALL_64_fastpath+0x1a/0xa9
    [&lt;ffffffffffffffff&gt;] 0xffffffffffffffff

I found, the ida information (dynamic memory) isn't cleanup.

Signed-off-by: Kinglong Mee &lt;kinglongmee@gmail.com&gt;
Fixes: 2f048db4680a ("SUNRPC: Add an identifier for struct rpc_clnt")
Cc: stable@vger.kernel.org # v3.12+
Signed-off-by: Trond Myklebust &lt;trond.myklebust@primarydata.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=c929ea0b910355e1876c64431f3d5802f95b3d75'>Diffstat</a> (limited to 'sound/aoa/fabrics/Kconfig')</div><table summary='diffstat' class='diffstat'>