/* ADJ_FREQ Skew consistency test
 *		by: john stultz (johnstul@us.ibm.com)
 *		(C) Copyright IBM 2012
 *		Licensed under the GPLv2
 *
 *  NOTE: This is a meta-test which cranks the ADJ_FREQ knob back
 *  and forth and watches for consistency problems. Thus this test requires
 *  that the inconsistency-check tests be present in the same directory it
 *  is run from.
 *
 *  To build:
 *	$ gcc skew_consistency.c -o skew_consistency -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 <stdlib.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/timex.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.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 NSEC_PER_SEC 1000000000LL

int main(int argv, char **argc)
{
	struct timex tx;
	int ret, ppm;
	pid_t pid;


	printf("Running Asynchronous Frequency Changing Tests...\n");

	pid = fork();
	if (!pid)
		return system("./inconsistency-check -c 1 -t 600");

	ppm = 500;
	ret = 0;

	while (pid != waitpid(pid, &ret, WNOHANG)) {
		ppm = -ppm;
		tx.modes = ADJ_FREQUENCY;
		tx.freq = ppm << 16;
		adjtimex(&tx);
		usleep(500000);
	}

	/* Set things back */
	tx.modes = ADJ_FREQUENCY;
	tx.offset = 0;
	adjtimex(&tx);


	if (ret) {
		printf("[FAILED]\n");
		return ksft_exit_fail();
	}
	printf("[OK]\n");
	return ksft_exit_pass();
}
und/soc/intel/boards/bxt_rt298.c?id=4759d386d55fef452d692bf101167914437e848e'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/intel/boards/bxt_rt298.c?id=4759d386d55fef452d692bf101167914437e848e'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/sound/soc/intel/boards/bxt_rt298.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=4759d386d55fef452d692bf101167914437e848e'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?id=4759d386d55fef452d692bf101167914437e848e'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc?id=4759d386d55fef452d692bf101167914437e848e'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/intel?id=4759d386d55fef452d692bf101167914437e848e'>intel</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/intel/boards?id=4759d386d55fef452d692bf101167914437e848e'>boards</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/intel/boards/bxt_rt298.c?id=4759d386d55fef452d692bf101167914437e848e'>bxt_rt298.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='4759d386d55fef452d692bf101167914437e848e'/><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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-01 12:27:05 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-01 12:27:05 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/intel/boards/bxt_rt298.c?id=4759d386d55fef452d692bf101167914437e848e'>4759d386d55fef452d692bf101167914437e848e</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/soc/intel/boards/bxt_rt298.c?id=4759d386d55fef452d692bf101167914437e848e'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=4759d386d55fef452d692bf101167914437e848e'>e7109c192ec589fcea2a98f9702aa3c0e4009581</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/intel/boards/bxt_rt298.c?id=4759d386d55fef452d692bf101167914437e848e'>sound/soc/intel/boards/bxt_rt298.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/intel/boards/bxt_rt298.c?id=238d1d0f79f619d75c2cc741d6770fb0986aef24'>238d1d0f79f619d75c2cc741d6770fb0986aef24</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/intel/boards/bxt_rt298.c?id=4759d386d55fef452d692bf101167914437e848e&amp;id2=238d1d0f79f619d75c2cc741d6770fb0986aef24'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/intel/boards/bxt_rt298.c?id=1db175428ee374489448361213e9c3b749d14900'>1db175428ee374489448361213e9c3b749d14900</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/intel/boards/bxt_rt298.c?id=4759d386d55fef452d692bf101167914437e848e&amp;id2=1db175428ee374489448361213e9c3b749d14900'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm</div><div class='commit-msg'>Pull DAX updates from Dan Williams:
 "The completion of Jan's DAX work for 4.10.

  As I mentioned in the libnvdimm-for-4.10 pull request, these are some
  final fixes for the DAX dirty-cacheline-tracking invalidation work
  that was merged through the -mm, ext4, and xfs trees in -rc1. These
  patches were prepared prior to the merge window, but we waited for
  4.10-rc1 to have a stable merge base after all the prerequisites were
  merged.

  Quoting Jan on the overall changes in these patches:

     "So I'd like all these 6 patches to go for rc2. The first three
      patches fix invalidation of exceptional DAX entries (a bug which
      is there for a long time) - without these patches data loss can
      occur on power failure even though user called fsync(2). The other
      three patches change locking of DAX faults so that -&gt;iomap_begin()
      is called in a more relaxed locking context and we are safe to
      start a transaction there for ext4"

  These have received a build success notification from the kbuild
  robot, and pass the latest libnvdimm unit tests. There have not been
  any -next releases since -rc1, so they have not appeared there"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  ext4: Simplify DAX fault path
  dax: Call -&gt;iomap_begin without entry lock during dax fault
  dax: Finish fault completely when loading holes
  dax: Avoid page invalidation races and unnecessary radix tree traversals
  mm: Invalidate DAX radix tree entries only if appropriate
  ext2: Return BH_New buffers for zeroed blocks
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=4759d386d55fef452d692bf101167914437e848e'>Diffstat</a> (limited to 'sound/soc/intel/boards/bxt_rt298.c')</div><table summary='diffstat' class='diffstat'>