/* Copyright (c) 2016 Facebook
 *
 * 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/version.h>
#include <linux/ptrace.h>
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"

#define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;})

SEC("kprobe/__set_task_comm")
int prog(struct pt_regs *ctx)
{
	struct signal_struct *signal;
	struct task_struct *tsk;
	char oldcomm[16] = {};
	char newcomm[16] = {};
	u16 oom_score_adj;
	u32 pid;

	tsk = (void *)PT_REGS_PARM1(ctx);

	pid = _(tsk->pid);
	bpf_probe_read(oldcomm, sizeof(oldcomm), &tsk->comm);
	bpf_probe_read(newcomm, sizeof(newcomm), (void *)PT_REGS_PARM2(ctx));
	signal = _(tsk->signal);
	oom_score_adj = _(signal->oom_score_adj);
	return 0;
}

SEC("kprobe/urandom_read")
int prog2(struct pt_regs *ctx)
{
	return 0;
}

char _license[] SEC("license") = "GPL";
u32 _version SEC("version") = LINUX_VERSION_CODE;
h' onchange='this.form.submit();'>
<option value='emaclite-cleanup'>emaclite-cleanup</option>
<option value='master' selected='selected'>master</option>
<option value='nds-private-remove'>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=c325b3533730016ca5cdaf902d62550b4243fe43'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/net/ceph/msgpool.c'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/net/ceph/msgpool.c?id=c325b3533730016ca5cdaf902d62550b4243fe43'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/net/ceph/msgpool.c?id=c325b3533730016ca5cdaf902d62550b4243fe43'>commit</a><a class='active' href='/cgit.cgi/linux/net-next.git/diff/net/ceph/msgpool.c?id=c325b3533730016ca5cdaf902d62550b4243fe43&amp;id2=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/ceph/msgpool.c'>
<input type='hidden' name='id' value='c325b3533730016ca5cdaf902d62550b4243fe43'/><input type='hidden' name='id2' value='cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/diff/?id=c325b3533730016ca5cdaf902d62550b4243fe43&amp;id2=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/diff/net?id=c325b3533730016ca5cdaf902d62550b4243fe43&amp;id2=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>net</a>/<a href='/cgit.cgi/linux/net-next.git/diff/net/ceph?id=c325b3533730016ca5cdaf902d62550b4243fe43&amp;id2=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>ceph</a>/<a href='/cgit.cgi/linux/net-next.git/diff/net/ceph/msgpool.c?id=c325b3533730016ca5cdaf902d62550b4243fe43&amp;id2=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>msgpool.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='c325b3533730016ca5cdaf902d62550b4243fe43'/><input type='hidden' name='id2' value='cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'/><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><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c325b3533730016ca5cdaf902d62550b4243fe43&amp;id2=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>Diffstat</a> (limited to 'net/ceph/msgpool.c')</div><table summary='diffstat' class='diffstat'>