PERFORCE change 112959 for review
Paolo Pisati
piso at FreeBSD.org
Mon Jan 15 23:15:52 UTC 2007
http://perforce.freebsd.org/chv.cgi?CH=112959
Change 112959 by piso at piso_newluxor on 2007/01/15 23:15:43
Looks like we don't need intr_table_lock while scanning
through interrupt_sources[].
While here, do some spacing and indentation according
to style.
Affected files ...
.. //depot/projects/soc2006/intr_filter/amd64/amd64/intr_machdep.c#21 edit
Differences ...
==== //depot/projects/soc2006/intr_filter/amd64/amd64/intr_machdep.c#21 (text+ko) ====
@@ -227,10 +227,13 @@
walk_intr_src(void) {
struct intsrc *isrc;
static int i = 0;
+ int j;
- for (; i<NUM_IO_INTS; ) {
- int j = i++;
+ for (; i < NUM_IO_INTS;) {
+ j = i++;
+ mtx_lock_spin(&intr_table_lock);
isrc = interrupt_sources[j];
+ mtx_unlock_spin(&intr_table_lock);
if (isrc != NULL && isrc->is_event != NULL)
return (isrc->is_event);
}
@@ -242,9 +245,8 @@
intr_callout_reset(void)
{
- mtx_lock_spin(&intr_table_lock);
- callout_reset(&stray_callout_handle, hz, &stray_detection, &walk_intr_src);
- mtx_unlock_spin(&intr_table_lock);
+ callout_reset(&stray_callout_handle, hz, &stray_detection,
+ &walk_intr_src);
}
void
@@ -397,7 +399,7 @@
intrcnt_index = 1;
STAILQ_INIT(&pics);
mtx_init(&intr_table_lock, "intr table", NULL, MTX_SPIN);
- callout_init_mtx(&stray_callout_handle, &intr_table_lock, 0);
+ callout_init(&stray_callout_handle, 1);
}
SYSINIT(intr_init, SI_SUB_INTR, SI_ORDER_FIRST, intr_init, NULL)
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