/* Copyright (c) 2016 Sargun Dhillon <sargun@sargun.me>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 */

#include <linux/ptrace.h>
#include <uapi/linux/bpf.h>
#include <linux/version.h>
#include "bpf_helpers.h"
#include <uapi/linux/utsname.h>

struct bpf_map_def SEC("maps") cgroup_map = {
	.type			= BPF_MAP_TYPE_CGROUP_ARRAY,
	.key_size		= sizeof(u32),
	.value_size		= sizeof(u32),
	.max_entries	= 1,
};

struct bpf_map_def SEC("maps") perf_map = {
	.type			= BPF_MAP_TYPE_ARRAY,
	.key_size		= sizeof(u32),
	.value_size		= sizeof(u64),
	.max_entries	= 1,
};

/* Writes the last PID that called sync to a map at index 0 */
SEC("kprobe/sys_sync")
int bpf_prog1(struct pt_regs *ctx)
{
	u64 pid = bpf_get_current_pid_tgid();
	int idx = 0;

	if (!bpf_current_task_under_cgroup(&cgroup_map, 0))
		return 0;

	bpf_map_update_elem(&perf_map, &idx, &pid, BPF_ANY);
	return 0;
}

char _license[] SEC("license") = "GPL";
u32 _version SEC("version") = LINUX_VERSION_CODE;
e'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=69973b830859bc6529a7a0468ba0d80ee5117826'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include/net/9p/transport.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/net/9p/transport.h?id=69973b830859bc6529a7a0468ba0d80ee5117826'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/net/9p/transport.h?id=69973b830859bc6529a7a0468ba0d80ee5117826'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/net/9p/transport.h?id=69973b830859bc6529a7a0468ba0d80ee5117826'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/net/9p/transport.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=69973b830859bc6529a7a0468ba0d80ee5117826'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=69973b830859bc6529a7a0468ba0d80ee5117826'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net?id=69973b830859bc6529a7a0468ba0d80ee5117826'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net/9p?id=69973b830859bc6529a7a0468ba0d80ee5117826'>9p</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net/9p/transport.h?id=69973b830859bc6529a7a0468ba0d80ee5117826'>transport.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='69973b830859bc6529a7a0468ba0d80ee5117826'/><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'>2016-12-11 11:17:54 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-11 11:17:54 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/9p/transport.h?id=69973b830859bc6529a7a0468ba0d80ee5117826'>69973b830859bc6529a7a0468ba0d80ee5117826</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/net/9p/transport.h?id=69973b830859bc6529a7a0468ba0d80ee5117826'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=69973b830859bc6529a7a0468ba0d80ee5117826'>5f11fe15ed9d9a3ab9c92242030e54b73ecdce45</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/net/9p/transport.h?id=69973b830859bc6529a7a0468ba0d80ee5117826'>include/net/9p/transport.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/9p/transport.h?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>2e4333c14de06a333783d6812cf3c4998f78b0c8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/net/9p/transport.h?id=69973b830859bc6529a7a0468ba0d80ee5117826&amp;id2=2e4333c14de06a333783d6812cf3c4998f78b0c8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Linux 4.9</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=69973b830859bc6529a7a0468ba0d80ee5117826'>Diffstat</a> (limited to 'include/net/9p/transport.h')</div><table summary='diffstat' class='diffstat'>