Differential D23150 Diff 66678 sys/compat/linuxkpi/common/src/linux_rcu.c

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Show First 20 Lines • Show All 292 Lines • ▼ Show 20 Lines	linux_synchronize_rcu(void)

if (RCU_SKIP())		if (RCU_SKIP())
return;		return;

WITNESS_WARN(WARN_GIANTOK \| WARN_SLEEPOK, NULL,		WITNESS_WARN(WARN_GIANTOK \| WARN_SLEEPOK, NULL,
"linux_synchronize_rcu() can sleep");		"linux_synchronize_rcu() can sleep");

td = curthread;		td = curthread;
		DROP_GIANT();

/*		/*
* Synchronizing RCU might change the CPU core this function		* Synchronizing RCU might change the CPU core this function
* is running on. Save current values:		* is running on. Save current values:
*/		*/
thread_lock(td);		thread_lock(td);

DROP_GIANT();

old_cpu = PCPU_GET(cpuid);		old_cpu = PCPU_GET(cpuid);
old_pinned = td->td_pinned;		old_pinned = td->td_pinned;
old_prio = td->td_priority;		old_prio = td->td_priority;
was_bound = sched_is_bound(td);		was_bound = sched_is_bound(td);
sched_unbind(td);		sched_unbind(td);
td->td_pinned = 0;		td->td_pinned = 0;
sched_bind(td, old_cpu);		sched_bind(td, old_cpu);
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