Author: avg
Date: Fri Aug 23 13:20:11 2013
New Revision: 254692
URL: http://svnweb.freebsd.org/changeset/base/254692
Log:
MFC r253604: rename scheduler->swapper and SI_SUB_RUN_SCHEDULER->SI_SUB_LAST
Modified:
stable/9/sys/gdb/gdb_cons.c
stable/9/sys/kern/init_main.c
stable/9/sys/kern/kern_ntptime.c
stable/9/sys/kern/sched_4bsd.c
stable/9/sys/ofed/include/linux/module.h
stable/9/sys/sys/kernel.h
stable/9/sys/sys/sched.h
stable/9/sys/vm/vm.h
stable/9/sys/vm/vm_glue.c
Directory Properties:
stable/9/sys/ (props changed)
stable/9/sys/sys/ (props changed)
Modified: stable/9/sys/gdb/gdb_cons.c
==============================================================================
--- stable/9/sys/gdb/gdb_cons.c Fri Aug 23 13:19:12 2013 (r254691)
+++ stable/9/sys/gdb/gdb_cons.c Fri Aug 23 13:20:11 2013 (r254692)
@@ -136,7 +136,7 @@ oktousecallout(void *data __unused)
{
calloutok = 1;
}
-SYSINIT(gdbhack, SI_SUB_RUN_SCHEDULER, SI_ORDER_MIDDLE, oktousecallout, NULL);
+SYSINIT(gdbhack, SI_SUB_LAST, SI_ORDER_MIDDLE, oktousecallout, NULL);
static void
gdb_cnputc(struct consdev *cp, int c)
Modified: stable/9/sys/kern/init_main.c
==============================================================================
--- stable/9/sys/kern/init_main.c Fri Aug 23 13:19:12 2013
(r254691)
+++ stable/9/sys/kern/init_main.c Fri Aug 23 13:20:11 2013
(r254692)
@@ -236,9 +236,6 @@ restart:
/*
* Traverse the (now) ordered list of system initialization tasks.
* Perform each task, and continue on to the next task.
- *
- * The last item on the list is expected to be the scheduler,
- * which will not return.
*/
for (sipp = sysinit; sipp < sysinit_end; sipp++) {
@@ -296,7 +293,13 @@ restart:
}
}
- panic("Shouldn't get here!");
+ mtx_assert(&Giant, MA_OWNED | MA_NOTRECURSED);
+ mtx_unlock(&Giant);
+
+ /*
+ * Now hand over this thread to swapper.
+ */
+ swapper();
/* NOTREACHED*/
}
@@ -339,7 +342,7 @@ static char wit_warn[] =
"WARNING: WITNESS option enabled, expect reduced performance.\n";
SYSINIT(witwarn, SI_SUB_COPYRIGHT, SI_ORDER_THIRD + 1,
print_caddr_t, wit_warn);
-SYSINIT(witwarn2, SI_SUB_RUN_SCHEDULER, SI_ORDER_THIRD + 1,
+SYSINIT(witwarn2, SI_SUB_LAST, SI_ORDER_THIRD + 1,
print_caddr_t, wit_warn);
#endif
@@ -348,7 +351,7 @@ static char diag_warn[] =
"WARNING: DIAGNOSTIC option enabled, expect reduced performance.\n";
SYSINIT(diagwarn, SI_SUB_COPYRIGHT, SI_ORDER_THIRD + 2,
print_caddr_t, diag_warn);
-SYSINIT(diagwarn2, SI_SUB_RUN_SCHEDULER, SI_ORDER_THIRD + 2,
+SYSINIT(diagwarn2, SI_SUB_LAST, SI_ORDER_THIRD + 2,
print_caddr_t, diag_warn);
#endif
Modified: stable/9/sys/kern/kern_ntptime.c
==============================================================================
--- stable/9/sys/kern/kern_ntptime.c Fri Aug 23 13:19:12 2013
(r254691)
+++ stable/9/sys/kern/kern_ntptime.c Fri Aug 23 13:20:11 2013
(r254692)
@@ -1040,5 +1040,5 @@ start_periodic_resettodr(void *arg __unu
periodic_resettodr, NULL);
}
-SYSINIT(periodic_resettodr, SI_SUB_RUN_SCHEDULER, SI_ORDER_MIDDLE,
+SYSINIT(periodic_resettodr, SI_SUB_LAST, SI_ORDER_MIDDLE,
start_periodic_resettodr, NULL);
Modified: stable/9/sys/kern/sched_4bsd.c
==============================================================================
--- stable/9/sys/kern/sched_4bsd.c Fri Aug 23 13:19:12 2013
(r254691)
+++ stable/9/sys/kern/sched_4bsd.c Fri Aug 23 13:20:11 2013
(r254692)
@@ -143,7 +143,7 @@ static struct kproc_desc sched_kp = {
schedcpu_thread,
NULL
};
-SYSINIT(schedcpu, SI_SUB_RUN_SCHEDULER, SI_ORDER_FIRST, kproc_start,
+SYSINIT(schedcpu, SI_SUB_LAST, SI_ORDER_FIRST, kproc_start,
&sched_kp);
SYSINIT(sched_setup, SI_SUB_RUN_QUEUE, SI_ORDER_FIRST, sched_setup, NULL);
Modified: stable/9/sys/ofed/include/linux/module.h
==============================================================================
--- stable/9/sys/ofed/include/linux/module.h Fri Aug 23 13:19:12 2013
(r254691)
+++ stable/9/sys/ofed/include/linux/module.h Fri Aug 23 13:20:11 2013
(r254692)
@@ -68,17 +68,17 @@ _module_run(void *arg)
}
#define module_init(fn)
\
- SYSINIT(fn, SI_SUB_RUN_SCHEDULER, SI_ORDER_FIRST, _module_run, (fn))
+ SYSINIT(fn, SI_SUB_LAST, SI_ORDER_FIRST, _module_run, (fn))
/*
* XXX This is a freebsdism designed to work around not having a module
* load order resolver built in.
*/
#define module_init_order(fn, order)
\
- SYSINIT(fn, SI_SUB_RUN_SCHEDULER, (order), _module_run, (fn))
+ SYSINIT(fn, SI_SUB_LAST, (order), _module_run, (fn))
#define module_exit(fn) \
- SYSUNINIT(fn, SI_SUB_RUN_SCHEDULER, SI_ORDER_FIRST, _module_run, (fn))
+ SYSUNINIT(fn, SI_SUB_LAST, SI_ORDER_FIRST, _module_run, (fn))
#define module_get(module)
#define module_put(module)
Modified: stable/9/sys/sys/kernel.h
==============================================================================
--- stable/9/sys/sys/kernel.h Fri Aug 23 13:19:12 2013 (r254691)
+++ stable/9/sys/sys/kernel.h Fri Aug 23 13:20:11 2013 (r254692)
@@ -79,7 +79,7 @@ extern volatile int ticks;
* enumeration values are explicit rather than implicit to provide
* for binary compatibility with inserted elements.
*
- * The SI_SUB_RUN_SCHEDULER value must have the highest lexical value.
+ * The SI_SUB_LAST value must have the highest lexical value.
*
* The SI_SUB_SWAP values represent a value used by
* the BSD 4.4Lite but not by FreeBSD; it is maintained in dependent
@@ -165,7 +165,7 @@ enum sysinit_sub_id {
SI_SUB_KTHREAD_IDLE = 0xee00000, /* idle procs*/
SI_SUB_SMP = 0xf000000, /* start the APs*/
SI_SUB_RACCTD = 0xf100000, /* start raccd*/
- SI_SUB_RUN_SCHEDULER = 0xfffffff /* scheduler*/
+ SI_SUB_LAST = 0xfffffff /* final initialization */
};
Modified: stable/9/sys/sys/sched.h
==============================================================================
--- stable/9/sys/sys/sched.h Fri Aug 23 13:19:12 2013 (r254691)
+++ stable/9/sys/sys/sched.h Fri Aug 23 13:20:11 2013 (r254692)
@@ -180,7 +180,7 @@ static void name ## _add_proc(void *dumm
#name, CTLTYPE_LONG|CTLFLAG_RD|CTLFLAG_MPSAFE, \
ptr, 0, sysctl_dpcpu_long, "LU", descr); \
} \
-SYSINIT(name, SI_SUB_RUN_SCHEDULER, SI_ORDER_MIDDLE, name ## _add_proc, NULL);
+SYSINIT(name, SI_SUB_LAST, SI_ORDER_MIDDLE, name ## _add_proc, NULL);
#define SCHED_STAT_DEFINE(name, descr)
\
DPCPU_DEFINE(unsigned long, name); \
Modified: stable/9/sys/vm/vm.h
==============================================================================
--- stable/9/sys/vm/vm.h Fri Aug 23 13:19:12 2013 (r254691)
+++ stable/9/sys/vm/vm.h Fri Aug 23 13:20:11 2013 (r254692)
@@ -151,6 +151,7 @@ int swap_reserve_by_cred(vm_ooffset_t in
void swap_reserve_force(vm_ooffset_t incr);
void swap_release(vm_ooffset_t decr);
void swap_release_by_cred(vm_ooffset_t decr, struct ucred *cred);
+void swapper(void);
#endif /* VM_H */
Modified: stable/9/sys/vm/vm_glue.c
==============================================================================
--- stable/9/sys/vm/vm_glue.c Fri Aug 23 13:19:12 2013 (r254691)
+++ stable/9/sys/vm/vm_glue.c Fri Aug 23 13:20:11 2013 (r254692)
@@ -95,16 +95,6 @@ __FBSDID("$FreeBSD$");
#include <vm/vm_pager.h>
#include <vm/swap_pager.h>
-/*
- * System initialization
- *
- * THIS MUST BE THE LAST INITIALIZATION ITEM!!!
- *
- * Note: run scheduling should be divorced from the vm system.
- */
-static void scheduler(void *);
-SYSINIT(scheduler, SI_SUB_RUN_SCHEDULER, SI_ORDER_ANY, scheduler, NULL);
-
#ifndef NO_SWAPPING
static int swapout(struct proc *);
static void swapclear(struct proc *);
@@ -691,10 +681,8 @@ faultin(p)
*
* Giant is held on entry.
*/
-/* ARGSUSED*/
-static void
-scheduler(dummy)
- void *dummy;
+void
+swapper(void)
{
struct proc *p;
struct thread *td;
@@ -704,9 +692,6 @@ scheduler(dummy)
int ppri;
int pri;
- mtx_assert(&Giant, MA_OWNED | MA_NOTRECURSED);
- mtx_unlock(&Giant);
-
loop:
if (vm_page_count_min()) {
VM_WAIT;
@@ -757,7 +742,7 @@ loop:
* Nothing to do, back to sleep.
*/
if ((p = pp) == NULL) {
- tsleep(&proc0, PVM, "sched", MAXSLP * hz / 2);
+ tsleep(&proc0, PVM, "swapin", MAXSLP * hz / 2);
goto loop;
}
PROC_LOCK(p);
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