/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009, 2010 Daniel Borkmann.
 * Copyright 2010 Marek Polacek.
 * Subject to the GPL, version 2.
 */

#include <sys/syscall.h>

#include "iosched.h"
#include "die.h"

#define IOPRIO_CLASS_SHIFT      13

enum {
	ioprio_class_none,
	ioprio_class_rt,
	ioprio_class_be,
	ioprio_class_idle,
};

enum {
	ioprio_who_process = 1,
	ioprio_who_pgrp,
	ioprio_who_user,
};

static const char *const to_prio[] = {
	"none",
	"realtime",
	"best-effort",
	"idle",
};

static inline int ioprio_set(int which, int who, int ioprio)
{
	return syscall(SYS_ioprio_set, which, who, ioprio);
}

static inline int ioprio_get(int which, int who)
{
	return syscall(SYS_ioprio_get, which, who);
}

static void ioprio_setpid(pid_t pid, int ioprio, int ioclass)
{
	int ret = ioprio_set(ioprio_who_process, pid,
			     ioprio | ioclass << IOPRIO_CLASS_SHIFT);
	if (ret < 0)
		panic("Failed to set io prio for pid!\n");
}

void ioprio_print(void)
{
	int ioprio = ioprio_get(ioprio_who_process, getpid());
	if (ioprio < 0)
		panic("Failed to fetch io prio for pid!\n");
	else {
		int ioclass = ioprio >> IOPRIO_CLASS_SHIFT;
		if (ioclass != ioprio_class_idle) {
			ioprio &= 0xff;
			printf("%s: prio %d\n", to_prio[ioclass], ioprio);
		} else
			printf("%s\n", to_prio[ioclass]);
	}
}

void set_ioprio_rt(void)
{
	ioprio_setpid(getpid(), 4, ioprio_class_rt);
}

void set_ioprio_be(void)
{
	ioprio_setpid(getpid(), 4, ioprio_class_be);
}
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=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/Documentation/IRQ-affinity.txt?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/Documentation/IRQ-affinity.txt'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>Documentation</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>IRQ-affinity.txt</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='e0f3e6a7ccc002be056b6a21768fceee0d44941e'/><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'>2016-10-28 09:27:58 -0700</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-10-28 09:27:58 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>e0f3e6a7ccc002be056b6a21768fceee0d44941e</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation/IRQ-affinity.txt?id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>2a37947a080ea84ef14d8d0a68c5e995e0505bf7</a> /<a href='/cgit.cgi/linux/net-next.git/tree/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>Documentation/IRQ-affinity.txt</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=43937003de5b677781b2fe4c871d628ab00cc341'>43937003de5b677781b2fe4c871d628ab00cc341</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e&amp;id2=43937003de5b677781b2fe4c871d628ab00cc341'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=dafa724bf582181d9a7d54f5cb4ca0bf8ef29269'>dafa724bf582181d9a7d54f5cb4ca0bf8ef29269</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/IRQ-affinity.txt?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e&amp;id2=dafa724bf582181d9a7d54f5cb4ca0bf8ef29269'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'dm-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm</div><div class='commit-msg'>Pull device mapper fixes from Mike Snitzer:

 - a couple DM raid and DM mirror fixes

 - a couple .request_fn request-based DM NULL pointer fixes

 - a fix for a DM target reference count leak, on target load error,
   that prevented associated DM target kernel module(s) from being
   removed

* tag 'dm-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm table: fix missing dm_put_target_type() in dm_table_add_target()
  dm rq: clear kworker_task if kthread_run() returned an error
  dm: free io_barrier after blk_cleanup_queue call
  dm raid: fix activation of existing raid4/10 devices
  dm mirror: use all available legs on multiple failures
  dm mirror: fix read error on recovery after default leg failure
  dm raid: fix compat_features validation
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=e0f3e6a7ccc002be056b6a21768fceee0d44941e'>Diffstat</a> (limited to 'Documentation/IRQ-affinity.txt')</div><table summary='diffstat' class='diffstat'>