#include <sys/mman.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/time.h>
#include <sys/resource.h>

#ifndef MCL_ONFAULT
#define MCL_ONFAULT (MCL_FUTURE << 1)
#endif

static int test_limit(void)
{
	int ret = 1;
	struct rlimit lims;
	void *map;

	if (getrlimit(RLIMIT_MEMLOCK, &lims)) {
		perror("getrlimit");
		return ret;
	}

	if (mlockall(MCL_ONFAULT | MCL_FUTURE)) {
		perror("mlockall");
		return ret;
	}

	map = mmap(NULL, 2 * lims.rlim_max, PROT_READ | PROT_WRITE,
		   MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, 0, 0);
	if (map != MAP_FAILED)
		printf("mmap should have failed, but didn't\n");
	else {
		ret = 0;
		munmap(map, 2 * lims.rlim_max);
	}

	munlockall();
	return ret;
}

int main(int argc, char **argv)
{
	int ret = 0;

	ret += test_limit();
	return ret;
}
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools?h=nds-private-remove&amp;id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf?h=nds-private-remove&amp;id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>perf</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/tests?h=nds-private-remove&amp;id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>tests</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/tests/llvm.c?h=nds-private-remove&amp;id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>llvm.c</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='b4cfe3971f6eab542dd7ecc398bfa1aeec889934'/><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>Jack Morgenstein &lt;jackm@dev.mellanox.co.il&gt;</td><td class='right'>2017-01-15 20:15:00 +0200</td></tr>
<tr><th>committer</th><td>Doug Ledford &lt;dledford@redhat.com&gt;</td><td class='right'>2017-01-27 14:29:04 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/tests/llvm.c?h=nds-private-remove&amp;id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>b4cfe3971f6eab542dd7ecc398bfa1aeec889934</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/tests/llvm.c?id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>patch</a>)</td></tr>
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<div class='commit-subject'>RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled</div><div class='commit-msg'>If IPV6 has not been enabled in the underlying kernel, we must avoid
calling IPV6 procedures in rdma_cm.ko.

This requires using "IS_ENABLED(CONFIG_IPV6)" in "if" statements
surrounding any code which calls external IPV6 procedures.

In the instance fixed here, procedure cma_bind_addr() called
ipv6_addr_type() -- which resulted in calling external procedure
__ipv6_addr_type().

Fixes: 6c26a77124ff ("RDMA/cma: fix IPv6 address resolution")
Cc: &lt;stable@vger.kernel.org&gt; # v4.2+
Cc: Spencer Baugh &lt;sbaugh@catern.com&gt;
Signed-off-by: Jack Morgenstein &lt;jackm@dev.mellanox.co.il&gt;
Reviewed-by: Moni Shoua &lt;monis@mellanox.com&gt;
Signed-off-by: Leon Romanovsky &lt;leon@kernel.org&gt;
Signed-off-by: Doug Ledford &lt;dledford@redhat.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>Diffstat</a> (limited to 'tools/perf/tests/llvm.c')</div><table summary='diffstat' class='diffstat'>