common/dtrace/dtrace.c

194  * (1) dtrace_lock is required to manipulate essentially any DTrace state,
196  *     etc.  Importantly, dtrace_lock is _not_ required when in probe context;
207  * dtrace_provider_lock before dtrace_lock.  (In particular, there are
210  * grabbing dtrace_lock.)
213  * to dtrace_provider_lock and dtrace_lock, cpu_lock continues its historical
218  * acquired _between_ dtrace_provider_lock and dtrace_lock.
220 static kmutex_t		dtrace_lock;		/* probe state lock */
6716 	ASSERT(MUTEX_HELD(&dtrace_lock));
6961 		ASSERT(MUTEX_HELD(&dtrace_lock));
6974 	mutex_enter(&dtrace_lock);
6992 		 * will acquire cpu_lock and dtrace_lock.  We therefore need
6995 		mutex_exit(&dtrace_lock);
7002 	mutex_exit(&dtrace_lock);
7029 		ASSERT(MUTEX_HELD(&dtrace_lock));
7041 		mutex_enter(&dtrace_lock);
7053 			mutex_exit(&dtrace_lock);
7077 			mutex_exit(&dtrace_lock);
7146 		mutex_exit(&dtrace_lock);
7170 	mutex_enter(&dtrace_lock);
7174 	mutex_exit(&dtrace_lock);
7211 	mutex_enter(&dtrace_lock);
7241 	mutex_exit(&dtrace_lock);
7269 		ASSERT(MUTEX_HELD(&dtrace_lock));
7271 		mutex_enter(&dtrace_lock);
7331 		mutex_exit(&dtrace_lock);
7339 	ASSERT(MUTEX_HELD(&dtrace_lock));
7377 	mutex_enter(&dtrace_lock);
7380 	mutex_exit(&dtrace_lock);
7395 	mutex_enter(&dtrace_lock);
7401 	mutex_exit(&dtrace_lock);
7434  * dtrace_lock must _not_ be held -- the provider's dtps_provide() operation
7435  * will need to grab the dtrace_lock when it reenters the framework through
7527 	ASSERT(MUTEX_HELD(&dtrace_lock));
7682 	 * cpu_lock and dtrace_lock; the fact that we are holding
7779 	mutex_enter(&dtrace_lock);
7782 		mutex_exit(&dtrace_lock);
7802 	mutex_exit(&dtrace_lock);
7828 	mutex_enter(&dtrace_lock);
7838 		mutex_exit(&dtrace_lock);
7845 	mutex_exit(&dtrace_lock);
8484 	ASSERT(MUTEX_HELD(&dtrace_lock));
8652 	ASSERT(MUTEX_HELD(&dtrace_lock));
8871 	ASSERT(MUTEX_HELD(&dtrace_lock));
8984 	ASSERT(MUTEX_HELD(&dtrace_lock));
9014 	ASSERT(MUTEX_HELD(&dtrace_lock));
9026 	ASSERT(MUTEX_HELD(&dtrace_lock));
9101 	ASSERT(MUTEX_HELD(&dtrace_lock));
9168 	ASSERT(MUTEX_HELD(&dtrace_lock));
9514 	ASSERT(MUTEX_HELD(&dtrace_lock));
9788 	ASSERT(MUTEX_HELD(&dtrace_lock));
9866 	ASSERT(MUTEX_HELD(&dtrace_lock));
9891 	ASSERT(MUTEX_HELD(&dtrace_lock));
9998 	ASSERT(MUTEX_HELD(&dtrace_lock));
10014 	ASSERT(MUTEX_HELD(&dtrace_lock));
10100 	ASSERT(MUTEX_HELD(&dtrace_lock));
10427 	ASSERT(MUTEX_HELD(&dtrace_lock));
10595 	ASSERT(MUTEX_HELD(&dtrace_lock));
10655 	ASSERT(MUTEX_HELD(&dtrace_lock));
10690 	ASSERT(MUTEX_HELD(&dtrace_lock));
10756 	ASSERT(MUTEX_HELD(&dtrace_lock));
10787 	ASSERT(MUTEX_HELD(&dtrace_lock));
10841 	mutex_enter(&dtrace_lock);
10861 	mutex_exit(&dtrace_lock);
10919 	ASSERT(MUTEX_HELD(&dtrace_lock));
10937 				mutex_exit(&dtrace_lock);
10939 				mutex_enter(&dtrace_lock);
10943 				 * dtrace_lock.
10951 	mutex_exit(&dtrace_lock);
10953 	mutex_enter(&dtrace_lock);
10986 	ASSERT(MUTEX_HELD(&dtrace_lock));
11039 	ASSERT(!MUTEX_HELD(&dtrace_lock));
11690 	ASSERT(MUTEX_HELD(&dtrace_lock));
11944 	ASSERT(MUTEX_HELD(&dtrace_lock));
12118 	ASSERT(MUTEX_HELD(&dtrace_lock));
12319 	ASSERT(MUTEX_HELD(&dtrace_lock));
12440 	mutex_enter(&dtrace_lock);
12695 	mutex_exit(&dtrace_lock);
12706 	ASSERT(MUTEX_HELD(&dtrace_lock));
12757 	ASSERT(MUTEX_HELD(&dtrace_lock));
12819 	ASSERT(MUTEX_HELD(&dtrace_lock));
12932 	ASSERT(MUTEX_HELD(&dtrace_lock));
12957 	ASSERT(MUTEX_HELD(&dtrace_lock));
13230 	ASSERT(MUTEX_HELD(&dtrace_lock));
13267 		 * because we drop dtrace_lock. It's unlikely that we'll make
13290 		mutex_exit(&dtrace_lock);
13305 		mutex_enter(&dtrace_lock);
13407 	ASSERT(MUTEX_NOT_HELD(&dtrace_lock));
13410 	mutex_enter(&dtrace_lock);
13431 		mutex_exit(&dtrace_lock);
13440 		mutex_exit(&dtrace_lock);
13451 		mutex_exit(&dtrace_lock);
13469 	ASSERT(MUTEX_HELD(&dtrace_lock));
13531 	mutex_enter(&dtrace_lock);
13535 		mutex_exit(&dtrace_lock);
13540 		mutex_exit(&dtrace_lock);
13766 	ASSERT(MUTEX_HELD(&dtrace_lock));
13840 			mutex_exit(&dtrace_lock);
13842 			mutex_enter(&dtrace_lock);
13859 	ASSERT(MUTEX_HELD(&dtrace_lock));
13880 	mutex_enter(&dtrace_lock);
13907 	mutex_exit(&dtrace_lock);
13922 			mutex_enter(&dtrace_lock);
13940 			mutex_exit(&dtrace_lock);
13953 	mutex_enter(&dtrace_lock);
13961 	mutex_exit(&dtrace_lock);
13973 	mutex_enter(&dtrace_lock);
14040 	mutex_exit(&dtrace_lock);
14077 	mutex_enter(&dtrace_lock);
14080 		mutex_exit(&dtrace_lock);
14087 	mutex_exit(&dtrace_lock);
14112 	mutex_enter(&dtrace_lock);
14121 		mutex_exit(&dtrace_lock);
14130 			mutex_exit(&dtrace_lock);
14191 	mutex_exit(&dtrace_lock);
14212 	mutex_enter(&dtrace_lock);
14263 	mutex_exit(&dtrace_lock);
14323 	mutex_enter(&dtrace_lock);
14330 		mutex_exit(&dtrace_lock);
14343 		mutex_exit(&dtrace_lock);
14454 		mutex_exit(&dtrace_lock);
14459 		mutex_enter(&dtrace_lock);
14467 	mutex_exit(&dtrace_lock);
14515 	mutex_enter(&dtrace_lock);
14526 		mutex_exit(&dtrace_lock);
14536 		mutex_exit(&dtrace_lock);
14540 	mutex_exit(&dtrace_lock);
14558 	mutex_enter(&dtrace_lock);
14578 	mutex_exit(&dtrace_lock);
14608 		mutex_enter(&dtrace_lock);
14621 		mutex_exit(&dtrace_lock);
14626 		mutex_enter(&dtrace_lock);
14628 		mutex_exit(&dtrace_lock);
14699 		mutex_enter(&dtrace_lock);
14702 			mutex_exit(&dtrace_lock);
14707 			mutex_exit(&dtrace_lock);
14727 		 * the temporary buffer to be able to drop dtrace_lock()
14751 		mutex_exit(&dtrace_lock);
14776 		mutex_enter(&dtrace_lock);
14779 			mutex_exit(&dtrace_lock);
14818 		 * the temporary buffer to be able to drop dtrace_lock()
14853 		mutex_exit(&dtrace_lock);
14886 		mutex_enter(&dtrace_lock);
14890 			mutex_exit(&dtrace_lock);
14897 			mutex_exit(&dtrace_lock);
14905 			mutex_exit(&dtrace_lock);
14918 		mutex_exit(&dtrace_lock);
14943 		mutex_enter(&dtrace_lock);
14945 		mutex_exit(&dtrace_lock);
14987 		mutex_enter(&dtrace_lock);
14998 				mutex_exit(&dtrace_lock);
15011 			mutex_exit(&dtrace_lock);
15016 		mutex_exit(&dtrace_lock);
15040 		mutex_enter(&dtrace_lock);
15043 			mutex_exit(&dtrace_lock);
15050 			mutex_exit(&dtrace_lock);
15056 		mutex_exit(&dtrace_lock);
15100 		mutex_enter(&dtrace_lock);
15102 		mutex_exit(&dtrace_lock);
15120 		mutex_enter(&dtrace_lock);
15122 		mutex_exit(&dtrace_lock);
15143 		mutex_enter(&dtrace_lock);
15155 				mutex_exit(&dtrace_lock);
15165 				mutex_exit(&dtrace_lock);
15189 				mutex_exit(&dtrace_lock);
15198 			mutex_exit(&dtrace_lock);
15210 			mutex_exit(&dtrace_lock);
15230 			mutex_exit(&dtrace_lock);
15241 			mutex_exit(&dtrace_lock);
15250 		mutex_exit(&dtrace_lock);
15293 		mutex_enter(&dtrace_lock);
15296 			mutex_exit(&dtrace_lock);
15336 		mutex_exit(&dtrace_lock);
15352 		mutex_enter(&dtrace_lock);
15356 			mutex_exit(&dtrace_lock);
15376 				mutex_exit(&dtrace_lock);
15381 				mutex_exit(&dtrace_lock);
15386 		mutex_exit(&dtrace_lock);
15416 	mutex_enter(&dtrace_lock);
15422 		mutex_exit(&dtrace_lock);
15429 		mutex_exit(&dtrace_lock);
15503 	mutex_exit(&dtrace_lock);