#include <api/fs/tracing_path.h>
#include <linux/err.h>
#include "thread_map.h"
#include "evsel.h"
#include "debug.h"
#include "tests.h"

int test__openat_syscall_event(int subtest __maybe_unused)
{
	int err = -1, fd;
	struct perf_evsel *evsel;
	unsigned int nr_openat_calls = 111, i;
	struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
	char sbuf[STRERR_BUFSIZE];
	char errbuf[BUFSIZ];

	if (threads == NULL) {
		pr_debug("thread_map__new\n");
		return -1;
	}

	evsel = perf_evsel__newtp("syscalls", "sys_enter_openat");
	if (IS_ERR(evsel)) {
		tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat");
		pr_debug("%s\n", errbuf);
		goto out_thread_map_delete;
	}

	if (perf_evsel__open_per_thread(evsel, threads) < 0) {
		pr_debug("failed to open counter: %s, "
			 "tweak /proc/sys/kernel/perf_event_paranoid?\n",
			 str_error_r(errno, sbuf, sizeof(sbuf)));
		goto out_evsel_delete;
	}

	for (i = 0; i < nr_openat_calls; ++i) {
		fd = openat(0, "/etc/passwd", O_RDONLY);
		close(fd);
	}

	if (perf_evsel__read_on_cpu(evsel, 0, 0) < 0) {
		pr_debug("perf_evsel__read_on_cpu\n");
		goto out_close_fd;
	}

	if (perf_counts(evsel->counts, 0, 0)->val != nr_openat_calls) {
		pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls, got %" PRIu64 "\n",
			 nr_openat_calls, perf_counts(evsel->counts, 0, 0)->val);
		goto out_close_fd;
	}

	err = 0;
out_close_fd:
	perf_evsel__close_fd(evsel, 1, threads->nr);
out_evsel_delete:
	perf_evsel__delete(evsel);
out_thread_map_delete:
	thread_map__put(threads);
	return err;
}
739e1205614'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include?id=88a7503376f4f3bf303c809d1a389739e1205614'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include?id=88a7503376f4f3bf303c809d1a389739e1205614'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include?id=88a7503376f4f3bf303c809d1a389739e1205614'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=88a7503376f4f3bf303c809d1a389739e1205614'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=88a7503376f4f3bf303c809d1a389739e1205614'>include</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='88a7503376f4f3bf303c809d1a389739e1205614'/><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>Keith Busch &lt;keith.busch@intel.com&gt;</td><td class='right'>2017-01-18 17:21:15 -0500</td></tr>
<tr><th>committer</th><td>Jens Axboe &lt;axboe@fb.com&gt;</td><td class='right'>2017-01-18 15:14:15 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=88a7503376f4f3bf303c809d1a389739e1205614'>88a7503376f4f3bf303c809d1a389739e1205614</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include?id=88a7503376f4f3bf303c809d1a389739e1205614'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=88a7503376f4f3bf303c809d1a389739e1205614'>5004e4c61099074e7832ec38e88d258275c152f2</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include?id=88a7503376f4f3bf303c809d1a389739e1205614'>include</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=fa19a769f82fb9a5ca000b83cacd13fcaeda51ac'>fa19a769f82fb9a5ca000b83cacd13fcaeda51ac</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include?id=88a7503376f4f3bf303c809d1a389739e1205614&amp;id2=fa19a769f82fb9a5ca000b83cacd13fcaeda51ac'>diff</a>)</td></tr></table>
<div class='commit-subject'>blk-mq: Remove unused variable</div><div class='commit-msg'>Signed-off-by: Keith Busch &lt;keith.busch@intel.com&gt;
Reviewed-by: Christoph Hellwig &lt;hch@lst.de&gt;
Reviewed-by: Sagi Grimberg &lt;sagi@grimberg.me&gt;
Signed-off-by: Jens Axboe &lt;axboe@fb.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=88a7503376f4f3bf303c809d1a389739e1205614'>Diffstat</a> (limited to 'include')</div><table summary='diffstat' class='diffstat'>