145 #define LOCK_PFS()	    spin_lock(&pfm_sessions.pfs_lock)
146 #define UNLOCK_PFS()	    spin_unlock(&pfm_sessions.pfs_lock)
406 static pfm_session_t	pfm_sessions;	/* global sessions information */  variable
1014 		if (pfm_sessions.pfs_task_sessions > 0UL) {  in pfm_reserve_session()
1016 			  	pfm_sessions.pfs_task_sessions));  in pfm_reserve_session()
1026 			if (pfm_sessions.pfs_sys_session[i]) goto undo;  in pfm_reserve_session()
1030 			pfm_sessions.pfs_sys_session[i] = task;  in pfm_reserve_session()
1034 		pfm_sessions.pfs_sys_sessions += n;  in pfm_reserve_session()
1036 		if (pfm_sessions.pfs_sys_sessions) goto abort;  in pfm_reserve_session()
1037 		pfm_sessions.pfs_task_sessions++;  in pfm_reserve_session()
1043   		pfm_sessions.pfs_sys_session[i]->pid, i));  in pfm_reserve_session()
1046 		pfm_sessions.pfs_sys_session[i] = NULL;  in pfm_reserve_session()
1071 		pfm_sessions.pfs_sys_sessions,  in pfm_unreserve_session()
1072 		pfm_sessions.pfs_task_sessions,  in pfm_unreserve_session()
1073 		pfm_sessions.pfs_sys_use_dbregs,  in pfm_unreserve_session()
1082 			pfm_sessions.pfs_sys_session[i] = NULL;  in pfm_unreserve_session()
1089 			if (pfm_sessions.pfs_sys_use_dbregs == 0) {  in pfm_unreserve_session()
1093 				pfm_sessions.pfs_sys_use_dbregs--;  in pfm_unreserve_session()
1096 		pfm_sessions.pfs_sys_sessions -= n;  in pfm_unreserve_session()
1099 			smp_processor_id(), pfm_sessions.pfs_sys_sessions));  in pfm_unreserve_session()
1101 		pfm_sessions.pfs_task_sessions--;  in pfm_unreserve_session()
1103 			task->pid, pfm_sessions.pfs_task_sessions));  in pfm_unreserve_session()
1908 	if (pfm_sessions.pfs_sys_use_dbregs> 0)  in pfm_use_debug_registers()
1911 		pfm_sessions.pfs_ptrace_use_dbregs++;  in pfm_use_debug_registers()
1914 		  pfm_sessions.pfs_ptrace_use_dbregs,   in pfm_use_debug_registers()
1915 		  pfm_sessions.pfs_sys_use_dbregs,   in pfm_use_debug_registers()
1937 	if (pfm_sessions.pfs_ptrace_use_dbregs == 0) {  in pfm_release_debug_registers()
1942 		pfm_sessions.pfs_ptrace_use_dbregs--;  in pfm_release_debug_registers()
2252 		if (pfm_sessions.pfs_ptrace_use_dbregs)   in pfm_write_ibr_dbr()
2255 			pfm_sessions.pfs_sys_use_dbregs++;  in pfm_write_ibr_dbr()
2387 			pfm_sessions.pfs_sys_use_dbregs--;  in pfm_write_ibr_dbr()
3220  		pfm_sessions.pfs_task_sessions,   in pfm_proc_show_header()
3221  		pfm_sessions.pfs_sys_sessions,  in pfm_proc_show_header()
3222  		pfm_sessions.pfs_sys_use_dbregs,  in pfm_proc_show_header()
3223  		pfm_sessions.pfs_ptrace_use_dbregs);  in pfm_proc_show_header()
4092 	pfm_sessions.pfs_task_sessions++;  in pfm_inherit()
4578 	spin_lock_init(&pfm_sessions.pfs_lock);  in pfm_init()