/* 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;
ected'>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/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=63461a028f761f8e45d22d06fb7e7468def024b7'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/net/sched/em_meta.c?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/net/sched/em_meta.c?h=nds-private-remove&amp;id=63461a028f761f8e45d22d06fb7e7468def024b7'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/net/sched/em_meta.c?h=nds-private-remove&amp;id=63461a028f761f8e45d22d06fb7e7468def024b7'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/sched/em_meta.c?h=nds-private-remove&amp;id=63461a028f761f8e45d22d06fb7e7468def024b7'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/sched/em_meta.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=63461a028f761f8e45d22d06fb7e7468def024b7'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?h=nds-private-remove&amp;id=63461a028f761f8e45d22d06fb7e7468def024b7'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/sched?h=nds-private-remove&amp;id=63461a028f761f8e45d22d06fb7e7468def024b7'>sched</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/sched/em_meta.c?h=nds-private-remove&amp;id=63461a028f761f8e45d22d06fb7e7468def024b7'>em_meta.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/sched/em_meta.c?h=nds-private-remove&amp;id=63461a028f761f8e45d22d06fb7e7468def024b7&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
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><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=04d8a0a5f3b6887543850d991a5e37c4ec90e250'>Diffstat</a> (limited to 'net/llc/llc_station.c')</div><table summary='diffstat' class='diffstat'>