sys/kern/kern_jail.c

133 /* allprison, allprison_racct and lastprid are protected by allprison_lock. */
134 struct	sx allprison_lock;
135 SX_SYSINIT(allprison_lock, &allprison_lock, "allprison");
162 #define	PD_LIST_SLOCKED	0x20	/* allprison_lock is held shared */
163 #define	PD_LIST_XLOCKED	0x40	/* allprison_lock is held exclusive */
1002 	sx_xlock(&allprison_lock);
1395 			 * setting is done with allprison_lock held.
1573 	 * as allprison_lock remains xlocked.
1689 			 * it is always set with allprison_lock at least
1856 			sx_xunlock(&allprison_lock);
1871 		sx_sunlock(&allprison_lock);
1873 		sx_xunlock(&allprison_lock);
2019 	sx_slock(&allprison_lock);
2259 		sx_sunlock(&allprison_lock);
2294 	sx_xlock(&allprison_lock);
2297 		sx_xunlock(&allprison_lock);
2303 		sx_xunlock(&allprison_lock);
2325 	sx_slock(&allprison_lock);
2328 		sx_sunlock(&allprison_lock);
2335 		sx_sunlock(&allprison_lock);
2350 	sx_assert(&allprison_lock, SX_LOCKED);
2372 	sx_unlock(&allprison_lock);
2428 	sx_slock(&allprison_lock);
2443 	sx_assert(&allprison_lock, SX_LOCKED);
2465 	sx_assert(&allprison_lock, SX_LOCKED);
2487 	sx_assert(&allprison_lock, SX_LOCKED);
2532  * mutex or the allprison lock is held (allprison_lock may be shared).
2612  * be set to the dying state until the prison mutex and allprison_lock
2703  * This assumes context that allows sleeping (for allprison_lock),
2821 		sx_sunlock(&allprison_lock);
2823 		sx_xunlock(&allprison_lock);
2846 	 * while allprison_lock was held (to avoid a LOR on vrele).
2960  * Given the current locking state in the flags, make sure allprison_lock
2970 		 * Get allprison_lock, which may be an upgrade,
2978 			if (!sx_try_upgrade(&allprison_lock)) {
2979 				sx_sunlock(&allprison_lock);
2980 				sx_xlock(&allprison_lock);
2984 			sx_xlock(&allprison_lock);
3005 	sx_slock(&allprison_lock);
3009 	sx_sunlock(&allprison_lock);
3174  * an exclusive hold on allprison_lock.
3753 		 * pr1 isn't locked (and allprison_lock may not be either)
3811 	sx_slock(&allprison_lock);
3877 	sx_sunlock(&allprison_lock);
4301 	sx_slock(&allprison_lock);
4308 	sx_sunlock(&allprison_lock);
4317 	sx_assert(&allprison_lock, SA_XLOCKED);
4349 	sx_xlock(&allprison_lock);
4351 	sx_xunlock(&allprison_lock);
4369 	sx_assert(&allprison_lock, SA_XLOCKED);
4383 	sx_assert(&allprison_lock, SA_UNLOCKED);
4388 	sx_xlock(&allprison_lock);
4390 	sx_xunlock(&allprison_lock);
4399 	sx_assert(&allprison_lock, SA_XLOCKED);
4423 	sx_xlock(&allprison_lock);
4426 		sx_xunlock(&allprison_lock);
4456 	sx_xunlock(&allprison_lock);
4464 	sx_assert(&allprison_lock, SA_UNLOCKED);