/*
 * 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);
}
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<div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='e533a37f7b5ee5eb8b102cf0823e84cd6a7deb57'/><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>Vladimir Murzin &lt;vladimir.murzin@arm.com&gt;</td><td class='right'>2016-09-12 15:49:19 +0100</td></tr>
<tr><th>committer</th><td>Christoffer Dall &lt;christoffer.dall@linaro.org&gt;</td><td class='right'>2016-09-22 13:21:48 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=e533a37f7b5ee5eb8b102cf0823e84cd6a7deb57'>e533a37f7b5ee5eb8b102cf0823e84cd6a7deb57</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=e533a37f7b5ee5eb8b102cf0823e84cd6a7deb57'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=e533a37f7b5ee5eb8b102cf0823e84cd6a7deb57'>e1805ccc9017ef922f2ebacecf526a1128067615</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=7a1ff708286045a6664fbda716fd3cf8d63afadb'>7a1ff708286045a6664fbda716fd3cf8d63afadb</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=e533a37f7b5ee5eb8b102cf0823e84cd6a7deb57&amp;id2=7a1ff708286045a6664fbda716fd3cf8d63afadb'>diff</a>)</td></tr></table>
<div class='commit-subject'>KVM: arm: vgic: Fix compiler warnings when built for 32-bit</div><div class='commit-msg'>Well, this patch is looking ahead of time, but we'll get following
compiler warnings as soon as we introduce vgic-v3 to 32-bit world

  CC      arch/arm/kvm/../../../virt/kvm/arm/vgic/vgic-mmio-v3.o
arch/arm/kvm/../../../virt/kvm/arm/vgic/vgic-mmio-v3.c: In function 'vgic_mmio_read_v3r_typer':
arch/arm/kvm/../../../virt/kvm/arm/vgic/vgic-mmio-v3.c:184:35: warning: left shift count &gt;= width of type [-Wshift-count-overflow]
  value = (mpidr &amp; GENMASK(23, 0)) &lt;&lt; 32;
                                   ^
In file included from ./include/linux/kernel.h:10:0,
                 from ./include/asm-generic/bug.h:13,
                 from ./arch/arm/include/asm/bug.h:59,
                 from ./include/linux/bug.h:4,
                 from ./include/linux/io.h:23,
                 from ./arch/arm/include/asm/arch_gicv3.h:23,
                 from ./include/linux/irqchip/arm-gic-v3.h:411,
                 from arch/arm/kvm/../../../virt/kvm/arm/vgic/vgic-mmio-v3.c:14:
arch/arm/kvm/../../../virt/kvm/arm/vgic/vgic-mmio-v3.c: In function 'vgic_v3_dispatch_sgi':
./include/linux/bitops.h:6:24: warning: left shift count &gt;= width of type [-Wshift-count-overflow]
 #define BIT(nr)   (1UL &lt;&lt; (nr))
                        ^
arch/arm/kvm/../../../virt/kvm/arm/vgic/vgic-mmio-v3.c:614:20: note: in expansion of macro 'BIT'
  broadcast = reg &amp; BIT(ICC_SGI1R_IRQ_ROUTING_MODE_BIT);
                    ^
Let's fix them now.

Acked-by: Marc Zyngier &lt;marc.zyngier@arm.com&gt;
Signed-off-by: Vladimir Murzin &lt;vladimir.murzin@arm.com&gt;
Signed-off-by: Christoffer Dall &lt;christoffer.dall@linaro.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=e533a37f7b5ee5eb8b102cf0823e84cd6a7deb57'>Diffstat</a></div><table summary='diffstat' class='diffstat'>