D23150.id66678.diff
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D23150.id66678.diff
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	Index: sys/compat/linuxkpi/common/src/linux_rcu.c
	===================================================================
	--- sys/compat/linuxkpi/common/src/linux_rcu.c
	+++ sys/compat/linuxkpi/common/src/linux_rcu.c
	@@ -298,6 +298,7 @@
	"linux_synchronize_rcu() can sleep");

	td = curthread;
	+ DROP_GIANT();

	/*
	* Synchronizing RCU might change the CPU core this function
	@@ -305,8 +306,6 @@
	*/
	thread_lock(td);

	- DROP_GIANT();
	-
	old_cpu = PCPU_GET(cpuid);
	old_pinned = td->td_pinned;
	old_prio = td->td_priority;
	Index: sys/kern/subr_epoch.c
	===================================================================
	--- sys/kern/subr_epoch.c
	+++ sys/kern/subr_epoch.c
	@@ -610,8 +610,8 @@
	KASSERT(!in_epoch(epoch), ("epoch_wait_preempt() called in the middle "
	"of an epoch section of the same epoch"));
	#endif
	- thread_lock(td);
	DROP_GIANT();
	+ thread_lock(td);

	old_cpu = PCPU_GET(cpuid);
	old_pinned = td->td_pinned;