common/dtrace/dtrace.c

258  * (1) dtrace_lock is required to manipulate essentially any DTrace state,
260  *     etc.  Importantly, dtrace_lock is _not_ required when in probe context;
271  * dtrace_provider_lock before dtrace_lock.  (In particular, there are
274  * grabbing dtrace_lock.)
277  * to dtrace_provider_lock and dtrace_lock, cpu_lock continues its historical
282  * acquired _between_ dtrace_provider_lock and dtrace_lock.
284 static kmutex_t		dtrace_lock;		/* probe state lock */
8398 	ASSERT(MUTEX_HELD(&dtrace_lock));
8635 		ASSERT(MUTEX_HELD(&dtrace_lock));
8648 	mutex_enter(&dtrace_lock);
8666 		 * will acquire cpu_lock and dtrace_lock.  We therefore need
8669 		mutex_exit(&dtrace_lock);
8676 	mutex_exit(&dtrace_lock);
8705 		ASSERT(MUTEX_HELD(&dtrace_lock));
8719 		mutex_enter(&dtrace_lock);
8731 			mutex_exit(&dtrace_lock);
8767 			mutex_exit(&dtrace_lock);
8851 		mutex_exit(&dtrace_lock);
8877 	mutex_enter(&dtrace_lock);
8881 	mutex_exit(&dtrace_lock);
8918 	mutex_enter(&dtrace_lock);
8952 	mutex_exit(&dtrace_lock);
8980 		ASSERT(MUTEX_HELD(&dtrace_lock));
8982 		mutex_enter(&dtrace_lock);
9046 		mutex_exit(&dtrace_lock);
9054 	ASSERT(MUTEX_HELD(&dtrace_lock));
9092 	mutex_enter(&dtrace_lock);
9095 	mutex_exit(&dtrace_lock);
9110 	mutex_enter(&dtrace_lock);
9116 	mutex_exit(&dtrace_lock);
9149  * dtrace_lock must _not_ be held -- the provider's dtps_provide() operation
9150  * will need to grab the dtrace_lock when it reenters the framework through
9248 	ASSERT(MUTEX_HELD(&dtrace_lock));
9407 	 * cpu_lock and dtrace_lock; the fact that we are holding
9504 	mutex_enter(&dtrace_lock);
9507 		mutex_exit(&dtrace_lock);
9527 	mutex_exit(&dtrace_lock);
9553 	mutex_enter(&dtrace_lock);
9563 		mutex_exit(&dtrace_lock);
9570 	mutex_exit(&dtrace_lock);
10274 	ASSERT(MUTEX_HELD(&dtrace_lock));
10458 	ASSERT(MUTEX_HELD(&dtrace_lock));
10681 	ASSERT(MUTEX_HELD(&dtrace_lock));
10794 	ASSERT(MUTEX_HELD(&dtrace_lock));
10824 	ASSERT(MUTEX_HELD(&dtrace_lock));
10836 	ASSERT(MUTEX_HELD(&dtrace_lock));
10915 	ASSERT(MUTEX_HELD(&dtrace_lock));
10982 	ASSERT(MUTEX_HELD(&dtrace_lock));
11331 	ASSERT(MUTEX_HELD(&dtrace_lock));
11618 	ASSERT(MUTEX_HELD(&dtrace_lock));
11696 	ASSERT(MUTEX_HELD(&dtrace_lock));
11721 	ASSERT(MUTEX_HELD(&dtrace_lock));
11826 	ASSERT(MUTEX_HELD(&dtrace_lock));
11842 	ASSERT(MUTEX_HELD(&dtrace_lock));
11951 	ASSERT(MUTEX_HELD(&dtrace_lock));
12039 	ASSERT(MUTEX_HELD(&dtrace_lock));
12369 	ASSERT(MUTEX_HELD(&dtrace_lock));
12574 	ASSERT(MUTEX_HELD(&dtrace_lock));
12635 	ASSERT(MUTEX_HELD(&dtrace_lock));
12670 	ASSERT(MUTEX_HELD(&dtrace_lock));
12736 	ASSERT(MUTEX_HELD(&dtrace_lock));
12767 	ASSERT(MUTEX_HELD(&dtrace_lock));
12814 	mutex_enter(&dtrace_lock);
12836 	mutex_exit(&dtrace_lock);
12894 	ASSERT(MUTEX_HELD(&dtrace_lock));
12912 				mutex_exit(&dtrace_lock);
12914 				mutex_enter(&dtrace_lock);
12918 				 * dtrace_lock.
12926 	mutex_exit(&dtrace_lock);
12928 	mutex_enter(&dtrace_lock);
12944 	mutex_enter(&dtrace_lock);
13006 	mutex_exit(&dtrace_lock);
13040 	ASSERT(MUTEX_HELD(&dtrace_lock));
13093 	ASSERT(!MUTEX_HELD(&dtrace_lock));
13140 	ASSERT(!MUTEX_HELD(&dtrace_lock));
13909 	ASSERT(MUTEX_HELD(&dtrace_lock));
14163 	ASSERT(MUTEX_HELD(&dtrace_lock));
14408 	ASSERT(MUTEX_HELD(&dtrace_lock));
14635 	ASSERT(MUTEX_HELD(&dtrace_lock));
14761 	mutex_enter(&dtrace_lock);
15056 	mutex_exit(&dtrace_lock);
15067 	ASSERT(MUTEX_HELD(&dtrace_lock));
15138 	ASSERT(MUTEX_HELD(&dtrace_lock));
15202 	ASSERT(MUTEX_HELD(&dtrace_lock));
15333 	ASSERT(MUTEX_HELD(&dtrace_lock));
15358 	ASSERT(MUTEX_HELD(&dtrace_lock));
15637 	ASSERT(MUTEX_HELD(&dtrace_lock));
15674 		 * because we drop dtrace_lock. It's unlikely that we'll make
15697 		mutex_exit(&dtrace_lock);
15712 		mutex_enter(&dtrace_lock);
15813 	ASSERT(MUTEX_NOT_HELD(&dtrace_lock));
15816 	mutex_enter(&dtrace_lock);
15837 		mutex_exit(&dtrace_lock);
15846 		mutex_exit(&dtrace_lock);
15857 		mutex_exit(&dtrace_lock);
15874 	ASSERT(MUTEX_HELD(&dtrace_lock));
15934 	mutex_enter(&dtrace_lock);
15938 		mutex_exit(&dtrace_lock);
15943 		mutex_exit(&dtrace_lock);
16182 	ASSERT(MUTEX_HELD(&dtrace_lock));
16264 			mutex_exit(&dtrace_lock);
16266 			mutex_enter(&dtrace_lock);
16283 	ASSERT(MUTEX_HELD(&dtrace_lock));
16309 	mutex_enter(&dtrace_lock);
16336 	mutex_exit(&dtrace_lock);
16351 			mutex_enter(&dtrace_lock);
16369 			mutex_exit(&dtrace_lock);
16382 	mutex_enter(&dtrace_lock);
16390 	mutex_exit(&dtrace_lock);
16405 	mutex_enter(&dtrace_lock);
16472 	mutex_exit(&dtrace_lock);
16515 	mutex_enter(&dtrace_lock);
16518 		mutex_exit(&dtrace_lock);
16525 	mutex_exit(&dtrace_lock);
16569 	mutex_enter(&dtrace_lock);
16575 		mutex_exit(&dtrace_lock);
16592 		mutex_exit(&dtrace_lock);
16603 			mutex_exit(&dtrace_lock);
16673 	mutex_exit(&dtrace_lock);
16717 	mutex_enter(&dtrace_lock);
16768 	mutex_exit(&dtrace_lock);
16850 	mutex_enter(&dtrace_lock);
16857 		mutex_exit(&dtrace_lock);
16870 		mutex_exit(&dtrace_lock);
16970 		mutex_exit(&dtrace_lock);
16975 		mutex_enter(&dtrace_lock);
16983 	mutex_exit(&dtrace_lock);
17047 	mutex_enter(&dtrace_lock);
17059 		mutex_exit(&dtrace_lock);
17090 		mutex_exit(&dtrace_lock);
17094 	mutex_exit(&dtrace_lock);
17124 	mutex_enter(&dtrace_lock);
17177 	mutex_exit(&dtrace_lock);
17210 		mutex_enter(&dtrace_lock);
17223 		mutex_exit(&dtrace_lock);
17228 		mutex_enter(&dtrace_lock);
17230 		mutex_exit(&dtrace_lock);
17302 		mutex_enter(&dtrace_lock);
17305 			mutex_exit(&dtrace_lock);
17310 			mutex_exit(&dtrace_lock);
17330 		 * the temporary buffer to be able to drop dtrace_lock()
17354 		mutex_exit(&dtrace_lock);
17379 		mutex_enter(&dtrace_lock);
17382 			mutex_exit(&dtrace_lock);
17421 		 * the temporary buffer to be able to drop dtrace_lock()
17456 		mutex_exit(&dtrace_lock);
17489 		mutex_enter(&dtrace_lock);
17493 			mutex_exit(&dtrace_lock);
17500 			mutex_exit(&dtrace_lock);
17508 			mutex_exit(&dtrace_lock);
17521 		mutex_exit(&dtrace_lock);
17546 		mutex_enter(&dtrace_lock);
17548 		mutex_exit(&dtrace_lock);
17590 		mutex_enter(&dtrace_lock);
17601 				mutex_exit(&dtrace_lock);
17614 			mutex_exit(&dtrace_lock);
17619 		mutex_exit(&dtrace_lock);
17643 		mutex_enter(&dtrace_lock);
17646 			mutex_exit(&dtrace_lock);
17653 			mutex_exit(&dtrace_lock);
17659 		mutex_exit(&dtrace_lock);
17703 		mutex_enter(&dtrace_lock);
17705 		mutex_exit(&dtrace_lock);
17723 		mutex_enter(&dtrace_lock);
17725 		mutex_exit(&dtrace_lock);
17746 		mutex_enter(&dtrace_lock);
17758 				mutex_exit(&dtrace_lock);
17768 				mutex_exit(&dtrace_lock);
17792 				mutex_exit(&dtrace_lock);
17802 			mutex_exit(&dtrace_lock);
17814 			mutex_exit(&dtrace_lock);
17834 			mutex_exit(&dtrace_lock);
17845 			mutex_exit(&dtrace_lock);
17855 		mutex_exit(&dtrace_lock);
17898 		mutex_enter(&dtrace_lock);
17901 			mutex_exit(&dtrace_lock);
17941 		mutex_exit(&dtrace_lock);
17957 		mutex_enter(&dtrace_lock);
17961 			mutex_exit(&dtrace_lock);
17981 				mutex_exit(&dtrace_lock);
17986 				mutex_exit(&dtrace_lock);
17991 		mutex_exit(&dtrace_lock);
18021 	mutex_enter(&dtrace_lock);
18027 		mutex_exit(&dtrace_lock);
18034 		mutex_exit(&dtrace_lock);
18106 	mutex_exit(&dtrace_lock);