/* Copyright (c) 2015 PLUMgrid, http://plumgrid.com
 *
 * 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 <linux/version.h>
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"

struct pair {
	u64 val;
	u64 ip;
};

struct bpf_map_def SEC("maps") my_map = {
	.type = BPF_MAP_TYPE_HASH,
	.key_size = sizeof(long),
	.value_size = sizeof(struct pair),
	.max_entries = 1000000,
};

/* kprobe is NOT a stable ABI. If kernel internals change this bpf+kprobe
 * example will no longer be meaningful
 */
SEC("kprobe/kmem_cache_free")
int bpf_prog1(struct pt_regs *ctx)
{
	long ptr = PT_REGS_PARM2(ctx);

	bpf_map_delete_elem(&my_map, &ptr);
	return 0;
}

SEC("kretprobe/kmem_cache_alloc_node")
int bpf_prog2(struct pt_regs *ctx)
{
	long ptr = PT_REGS_RC(ctx);
	long ip = 0;

	/* get ip address of kmem_cache_alloc_node() caller */
	BPF_KRETPROBE_READ_RET_IP(ip, ctx);

	struct pair v = {
		.val = bpf_ktime_get_ns(),
		.ip = ip,
	};

	bpf_map_update_elem(&my_map, &ptr, &v, BPF_ANY);
	return 0;
}
char _license[] SEC("license") = "GPL";
u32 _version SEC("version") = LINUX_VERSION_CODE;
ack</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=9208b75e048dda0d285904de9be7ab654a4b94fc'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include/acpi/pdc_intel.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/acpi/pdc_intel.h?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/acpi/pdc_intel.h?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/acpi/pdc_intel.h?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/acpi/pdc_intel.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/acpi?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>acpi</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/acpi/pdc_intel.h?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>pdc_intel.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='9208b75e048dda0d285904de9be7ab654a4b94fc'/><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>James Bottomley &lt;James.Bottomley@HansenPartnership.com&gt;</td><td class='right'>2017-01-17 17:32:54 -0500</td></tr>
<tr><th>committer</th><td>James Bottomley &lt;James.Bottomley@HansenPartnership.com&gt;</td><td class='right'>2017-01-17 17:32:54 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/acpi/pdc_intel.h?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>9208b75e048dda0d285904de9be7ab654a4b94fc</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/acpi/pdc_intel.h?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>b3af58ccd11b9ea186d1388be263b8ae0cb829b3</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/acpi/pdc_intel.h?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>include/acpi/pdc_intel.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/acpi/pdc_intel.h?id=2f5a31456ee80b37ef1170319fa134af0a1dfcc4'>2f5a31456ee80b37ef1170319fa134af0a1dfcc4</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/acpi/pdc_intel.h?id=9208b75e048dda0d285904de9be7ab654a4b94fc&amp;id2=2f5a31456ee80b37ef1170319fa134af0a1dfcc4'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/acpi/pdc_intel.h?id=ffb58456589443ca572221fabbdef3db8483a779'>ffb58456589443ca572221fabbdef3db8483a779</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/acpi/pdc_intel.h?id=9208b75e048dda0d285904de9be7ab654a4b94fc&amp;id2=ffb58456589443ca572221fabbdef3db8483a779'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge remote-tracking branch 'mkp-scsi/fixes' into fixes</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=9208b75e048dda0d285904de9be7ab654a4b94fc'>Diffstat</a> (limited to 'include/acpi/pdc_intel.h')</div><table summary='diffstat' class='diffstat'>