217 #define LOCK_PFS(g)	    	spin_lock_irqsave(&pfm_sessions.pfs_lock, g)
218 #define UNLOCK_PFS(g)	    	spin_unlock_irqrestore(&pfm_sessions.pfs_lock, g)
511 static pfm_session_t		pfm_sessions;	/* global sessions information */  variable
1293 		pfm_sessions.pfs_sys_sessions,  in pfm_reserve_session()
1294 		pfm_sessions.pfs_task_sessions,  in pfm_reserve_session()
1295 		pfm_sessions.pfs_sys_use_dbregs,  in pfm_reserve_session()
1303 		if (pfm_sessions.pfs_task_sessions > 0UL) {  in pfm_reserve_session()
1305 			  	pfm_sessions.pfs_task_sessions));  in pfm_reserve_session()
1309 		if (pfm_sessions.pfs_sys_session[cpu]) goto error_conflict;  in pfm_reserve_session()
1313 		pfm_sessions.pfs_sys_session[cpu] = task;  in pfm_reserve_session()
1315 		pfm_sessions.pfs_sys_sessions++ ;  in pfm_reserve_session()
1318 		if (pfm_sessions.pfs_sys_sessions) goto abort;  in pfm_reserve_session()
1319 		pfm_sessions.pfs_task_sessions++;  in pfm_reserve_session()
1323 		pfm_sessions.pfs_sys_sessions,  in pfm_reserve_session()
1324 		pfm_sessions.pfs_task_sessions,  in pfm_reserve_session()
1325 		pfm_sessions.pfs_sys_use_dbregs,  in pfm_reserve_session()
1340   		task_pid_nr(pfm_sessions.pfs_sys_session[cpu]),  in pfm_reserve_session()
1359 		pfm_sessions.pfs_sys_sessions,  in pfm_unreserve_session()
1360 		pfm_sessions.pfs_task_sessions,  in pfm_unreserve_session()
1361 		pfm_sessions.pfs_sys_use_dbregs,  in pfm_unreserve_session()
1367 		pfm_sessions.pfs_sys_session[cpu] = NULL;  in pfm_unreserve_session()
1372 			if (pfm_sessions.pfs_sys_use_dbregs == 0) {  in pfm_unreserve_session()
1375 				pfm_sessions.pfs_sys_use_dbregs--;  in pfm_unreserve_session()
1378 		pfm_sessions.pfs_sys_sessions--;  in pfm_unreserve_session()
1380 		pfm_sessions.pfs_task_sessions--;  in pfm_unreserve_session()
1383 		pfm_sessions.pfs_sys_sessions,  in pfm_unreserve_session()
1384 		pfm_sessions.pfs_task_sessions,  in pfm_unreserve_session()
1385 		pfm_sessions.pfs_sys_use_dbregs,  in pfm_unreserve_session()
3410 	if (pfm_sessions.pfs_sys_use_dbregs> 0)  in pfm_use_debug_registers()
3413 		pfm_sessions.pfs_ptrace_use_dbregs++;  in pfm_use_debug_registers()
3416 		  pfm_sessions.pfs_ptrace_use_dbregs,  in pfm_use_debug_registers()
3417 		  pfm_sessions.pfs_sys_use_dbregs,  in pfm_use_debug_registers()
3442 	if (pfm_sessions.pfs_ptrace_use_dbregs == 0) {  in pfm_release_debug_registers()
3446 		pfm_sessions.pfs_ptrace_use_dbregs--;  in pfm_release_debug_registers()
3695 			if (pfm_sessions.pfs_ptrace_use_dbregs)  in pfm_write_ibr_dbr()
3698 				pfm_sessions.pfs_sys_use_dbregs++;  in pfm_write_ibr_dbr()
3808 			pfm_sessions.pfs_sys_use_dbregs--;  in pfm_write_ibr_dbr()
4172 			if (pfm_sessions.pfs_ptrace_use_dbregs) {  in pfm_context_load()
4177 				pfm_sessions.pfs_sys_use_dbregs++;  in pfm_context_load()
4178 …DPRINT(("load [%d] increased sys_use_dbreg=%u\n", task_pid_nr(task), pfm_sessions.pfs_sys_use_dbre…  in pfm_context_load()
4331 		pfm_sessions.pfs_sys_use_dbregs--;  in pfm_context_load()
5568  		pfm_sessions.pfs_task_sessions,  in pfm_proc_show_header()
5569  		pfm_sessions.pfs_sys_sessions,  in pfm_proc_show_header()
5570  		pfm_sessions.pfs_sys_use_dbregs,  in pfm_proc_show_header()
5571  		pfm_sessions.pfs_ptrace_use_dbregs);  in pfm_proc_show_header()
6562 	spin_lock_init(&pfm_sessions.pfs_lock);  in pfm_init()