diff options
Diffstat (limited to 'kern/syscall_subr.c')
-rw-r--r-- | kern/syscall_subr.c | 58 |
1 files changed, 23 insertions, 35 deletions
diff --git a/kern/syscall_subr.c b/kern/syscall_subr.c index ae2d7d73..6d23462c 100644 --- a/kern/syscall_subr.c +++ b/kern/syscall_subr.c @@ -48,8 +48,6 @@ #include <mach/policy.h> #endif /* MACH_FIXPRI */ - - /* * swtch and swtch_pri both attempt to context switch (logic in * thread_block no-ops the context switch if nothing would happen). @@ -63,12 +61,9 @@ * returned, the thread should make one more check on the * lock and then be a good citizen and really suspend. */ - -void thread_depress_priority(thread_t, mach_msg_timeout_t); - void swtch_continue(void) { - register processor_t myprocessor; + processor_t myprocessor; myprocessor = current_processor(); thread_syscall_return(myprocessor->runq.count > 0 || @@ -78,7 +73,7 @@ void swtch_continue(void) boolean_t swtch(void) { - register processor_t myprocessor; + processor_t myprocessor; #if NCPUS > 1 myprocessor = current_processor(); @@ -96,8 +91,8 @@ boolean_t swtch(void) void swtch_pri_continue(void) { - register thread_t thread = current_thread(); - register processor_t myprocessor; + thread_t thread = current_thread(); + processor_t myprocessor; if (thread->depress_priority >= 0) (void) thread_depress_abort(thread); @@ -107,15 +102,10 @@ void swtch_pri_continue(void) /*NOTREACHED*/ } -boolean_t swtch_pri(pri) - int pri; +boolean_t swtch_pri(int pri) { - register thread_t thread = current_thread(); - register processor_t myprocessor; - -#ifdef lint - pri++; -#endif /* lint */ + thread_t thread = current_thread(); + processor_t myprocessor; #if NCPUS > 1 myprocessor = current_processor(); @@ -142,7 +132,7 @@ boolean_t swtch_pri(pri) void thread_switch_continue(void) { - register thread_t cur_thread = current_thread(); + thread_t cur_thread = current_thread(); /* * Restore depressed priority @@ -161,13 +151,13 @@ void thread_switch_continue(void) * Fixed priority threads that call this get what they asked for * even if that violates priority order. */ -kern_return_t thread_switch(thread_name, option, option_time) -mach_port_t thread_name; -int option; -mach_msg_timeout_t option_time; +kern_return_t thread_switch( + mach_port_t thread_name, + int option, + mach_msg_timeout_t option_time) { - register thread_t cur_thread = current_thread(); - register processor_t myprocessor; + thread_t cur_thread = current_thread(); + processor_t myprocessor; ipc_port_t port; /* @@ -208,8 +198,8 @@ mach_msg_timeout_t option_time; * Get corresponding thread. */ if (ip_active(port) && (ip_kotype(port) == IKOT_THREAD)) { - register thread_t thread; - register spl_t s; + thread_t thread; + spl_t s; thread = (thread_t) port->ip_kobject; /* @@ -289,9 +279,9 @@ mach_msg_timeout_t option_time; * of zero will result in no timeout being scheduled. */ void -thread_depress_priority(thread, depress_time) -register thread_t thread; -mach_msg_timeout_t depress_time; +thread_depress_priority( + thread_t thread, + mach_msg_timeout_t depress_time) { unsigned int ticks; spl_t s; @@ -312,8 +302,8 @@ mach_msg_timeout_t depress_time; * sched_pri to their lowest possible values. */ thread->depress_priority = thread->priority; - thread->priority = 31; - thread->sched_pri = 31; + thread->priority = NRQS-1; + thread->sched_pri = NRQS-1; if (ticks != 0) set_timeout(&thread->depress_timer, ticks); @@ -327,8 +317,7 @@ mach_msg_timeout_t depress_time; * Timeout routine for priority depression. */ void -thread_depress_timeout(thread) -register thread_t thread; +thread_depress_timeout(thread_t thread) { spl_t s; @@ -356,8 +345,7 @@ register thread_t thread; * Prematurely abort priority depression if there is one. */ kern_return_t -thread_depress_abort(thread) -register thread_t thread; +thread_depress_abort(thread_t thread) { spl_t s; |