#ifdef CONFIG_SCHED_AUTOGROUP

#include <linux/kref.h>
#include <linux/rwsem.h>

struct autogroup {
	/*
	 * reference doesn't mean how many thread attach to this
	 * autogroup now. It just stands for the number of task
	 * could use this autogroup.
	 */
	struct kref		kref;
	struct task_group	*tg;
	struct rw_semaphore	lock;
	unsigned long		id;
	int			nice;
};

extern void autogroup_init(struct task_struct *init_task);
extern void autogroup_free(struct task_group *tg);

static inline bool task_group_is_autogroup(struct task_group *tg)
{
	return !!tg->autogroup;
}

extern bool task_wants_autogroup(struct task_struct *p, struct task_group *tg);

static inline struct task_group *
autogroup_task_group(struct task_struct *p, struct task_group *tg)
{
	int enabled = READ_ONCE(sysctl_sched_autogroup_enabled);

	if (enabled && task_wants_autogroup(p, tg))
		return p->signal->autogroup->tg;

	return tg;
}

extern int autogroup_path(struct task_group *tg, char *buf, int buflen);

#else /* !CONFIG_SCHED_AUTOGROUP */

static inline void autogroup_init(struct task_struct *init_task) {  }
static inline void autogroup_free(struct task_group *tg) { }
static inline bool task_group_is_autogroup(struct task_group *tg)
{
	return 0;
}

static inline struct task_group *
autogroup_task_group(struct task_struct *p, struct task_group *tg)
{
	return tg;
}

#ifdef CONFIG_SCHED_DEBUG
static inline int autogroup_path(struct task_group *tg, char *buf, int buflen)
{
	return 0;
}
#endif

#endif /* CONFIG_SCHED_AUTOGROUP */
s'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/arch'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/arch?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/arch?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/arch?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/arch'>
<input type='hidden' name='id' value='9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'/><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/commit/?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/arch?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>arch</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'/><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'>2016-12-12 19:56:15 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-12 19:56:15 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/arch?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce</a> (<a href='/cgit.cgi/linux/net-next.git/patch/arch?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>fb31a0a6271b255ffe6e29b4f9eb4192253f8c7f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/arch?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>arch</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/arch?id=e71c3978d6f97659f6c3ee942c3e581299e4adf2'>e71c3978d6f97659f6c3ee942c3e581299e4adf2</a> (<a href='/cgit.cgi/linux/net-next.git/diff/arch?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce&amp;id2=e71c3978d6f97659f6c3ee942c3e581299e4adf2'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/arch?id=c029a2bec66e42e57538cb65e28618baf6a4b311'>c029a2bec66e42e57538cb65e28618baf6a4b311</a> (<a href='/cgit.cgi/linux/net-next.git/diff/arch?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce&amp;id2=c029a2bec66e42e57538cb65e28618baf6a4b311'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</div><div class='commit-msg'>Pull timer updates from Thomas Gleixner:
 "The time/timekeeping/timer folks deliver with this update:

   - Fix a reintroduced signed/unsigned issue and cleanup the whole
     signed/unsigned mess in the timekeeping core so this wont happen
     accidentaly again.

   - Add a new trace clock based on boot time

   - Prevent injection of random sleep times when PM tracing abuses the
     RTC for storage

   - Make posix timers configurable for real tiny systems

   - Add tracepoints for the alarm timer subsystem so timer based
     suspend wakeups can be instrumented

   - The usual pile of fixes and updates to core and drivers"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  timekeeping: Use mul_u64_u32_shr() instead of open coding it
  timekeeping: Get rid of pointless typecasts
  timekeeping: Make the conversion call chain consistently unsigned
  timekeeping_Force_unsigned_clocksource_to_nanoseconds_conversion
  alarmtimer: Add tracepoints for alarm timers
  trace: Update documentation for mono, mono_raw and boot clock
  trace: Add an option for boot clock as trace clock
  timekeeping: Add a fast and NMI safe boot clock
  timekeeping/clocksource_cyc2ns: Document intended range limitation
  timekeeping: Ignore the bogus sleep time if pm_trace is enabled
  selftests/timers: Fix spelling mistake "Asyncrhonous" -&gt; "Asynchronous"
  clocksource/drivers/bcm2835_timer: Unmap region obtained by of_iomap
  clocksource/drivers/arm_arch_timer: Map frame with of_io_request_and_map()
  arm64: dts: rockchip: Arch counter doesn't tick in system suspend
  clocksource/drivers/arm_arch_timer: Don't assume clock runs in suspend
  posix-timers: Make them configurable
  posix_cpu_timers: Move the add_device_randomness() call to a proper place
  timer: Move sys_alarm from timer.c to itimer.c
  ptp_clock: Allow for it to be optional
  Kconfig: Regenerate *.c_shipped files after previous changes
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>Diffstat</a> (limited to 'arch')</div><table summary='diffstat' class='diffstat'>