PERFORCE change 58031 for review
Julian Elischer
julian at FreeBSD.org
Sat Jul 24 02:24:04 PDT 2004
http://perforce.freebsd.org/chv.cgi?CH=58031
Change 58031 by julian at julian_ref on 2004/07/24 09:23:10
Simplify spare allocation a bit.
We don't need that second argumant.
Affected files ...
.. //depot/projects/nsched/sys/kern/kern_kse.c#20 edit
Differences ...
==== //depot/projects/nsched/sys/kern/kern_kse.c#20 (text+ko) ====
@@ -66,7 +66,7 @@
TAILQ_HEAD_INITIALIZER(zombie_upcalls);
static int thread_update_usr_ticks(struct thread *td, int user);
-static void thread_alloc_spare(struct thread *td, struct thread *spare);
+static void thread_alloc_spare(struct thread *td);
struct kse_upcall *
upcall_alloc(void)
@@ -576,7 +576,7 @@
/* For the first call this may not have been set */
if (td->td_standin == NULL)
- thread_alloc_spare(td, NULL);
+ thread_alloc_spare(td);
PROC_LOCK(p);
if (newkg->kg_numupcalls >= ncpus) {
@@ -894,17 +894,12 @@
* for thread_schedule_upcall().
*/
void
-thread_alloc_spare(struct thread *td, struct thread *spare)
+thread_alloc_spare(struct thread *td)
{
-
if (td->td_standin)
return;
- if (spare == NULL) {
- spare = thread_alloc();
- }
- sched_init_thread(spare);
- td->td_standin = spare;
- bzero(&spare->td_startzero,
+ td->td_standin = thread_alloc();
+ bzero(&td->td_spare->td_startzero,
(unsigned)RANGEOF(struct thread, td_startzero, td_endzero));
spare->td_proc = td->td_proc;
spare->td_ucred = crhold(td->td_ucred);
@@ -1061,7 +1056,7 @@
td->td_mailbox = NULL;
} else {
if (td->td_standin == NULL)
- thread_alloc_spare(td, NULL);
+ thread_alloc_spare(td);
flags = fuword32(&tmbx->tm_flags);
/*
* On some architectures, TP register points to thread
@@ -1288,7 +1283,7 @@
* for when we re-enter the kernel.
*/
if (td->td_standin == NULL)
- thread_alloc_spare(td, NULL);
+ thread_alloc_spare(td);
}
ku->ku_mflags = 0;
More information about the p4-projects
mailing list