#define _GNU_SOURCE
#include <sched.h>
#include <sys/types.h>
#include <sys/resource.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>

#include "proc.h"
#include "die.h"

void cpu_affinity(int cpu)
{
	int ret;
	cpu_set_t cpu_bitmask;

	CPU_ZERO(&cpu_bitmask);
	CPU_SET(cpu, &cpu_bitmask);

	ret = sched_setaffinity(getpid(), sizeof(cpu_bitmask),
				&cpu_bitmask);
	if (ret)
		panic("Can't set this cpu affinity!\n");
}

int set_proc_prio(int priority)
{
	int ret = setpriority(PRIO_PROCESS, getpid(), priority);
	if (ret)
		panic("Can't set nice val to %i!\n", priority);

	return 0;
}

int set_sched_status(int policy, int priority)
{
	int ret, min_prio, max_prio;
	struct sched_param sp;

	max_prio = sched_get_priority_max(policy);
	min_prio = sched_get_priority_min(policy);

	if (max_prio == -1 || min_prio == -1)
		printf("Cannot determine scheduler prio limits!\n");
	else if (priority < min_prio)
		priority = min_prio;
	else if (priority > max_prio)
		priority = max_prio;

	memset(&sp, 0, sizeof(sp));
	sp.sched_priority = priority;

	ret = sched_setscheduler(getpid(), policy, &sp);
	if (ret) {
		printf("Cannot set scheduler policy!\n");
		return -EINVAL;
	}

	ret = sched_setparam(getpid(), &sp);
	if (ret) {
		printf("Cannot set scheduler prio!\n");
		return -EINVAL;
	}

	return 0;
}
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<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-10-28 11:26:01 -0700</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-10-28 11:26:01 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=a8006bd915095c40098bfcb684cc2bdfb414dc0d'>a8006bd915095c40098bfcb684cc2bdfb414dc0d</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=a8006bd915095c40098bfcb684cc2bdfb414dc0d'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=a8006bd915095c40098bfcb684cc2bdfb414dc0d'>0ef5518cbb8fb1ebd108ca313639df22b9f79dd7</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=965c4b7e1adacd8fd9c5f3db6f64c3ba834ef6a0'>965c4b7e1adacd8fd9c5f3db6f64c3ba834ef6a0</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=a8006bd915095c40098bfcb684cc2bdfb414dc0d&amp;id2=965c4b7e1adacd8fd9c5f3db6f64c3ba834ef6a0'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=6bad6bccf2d717f652d37e63cf261eaa23466009'>6bad6bccf2d717f652d37e63cf261eaa23466009</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=a8006bd915095c40098bfcb684cc2bdfb414dc0d&amp;id2=6bad6bccf2d717f652d37e63cf261eaa23466009'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</div><div class='commit-msg'>Pull timer fixes from Ingo Molnar:
 "Fix four timer locking races: two were noticed by Linus while
  reviewing the code while chasing for a corruption bug, and two
  from fixing spurious USB timeouts"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers: Prevent base clock corruption when forwarding
  timers: Prevent base clock rewind when forwarding clock
  timers: Lock base for same bucket optimization
  timers: Plug locking race vs. timer migration
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=a8006bd915095c40098bfcb684cc2bdfb414dc0d'>Diffstat</a></div><table summary='diffstat' class='diffstat'>