Author: alc
Date: Sat Jul 2 23:34:47 2011
New Revision: 223729
URL: http://svn.freebsd.org/changeset/base/223729
Log:
Initialize marker pages as held rather than fictitious/wired. Marking the
page as held is more useful as a safety precaution in case someone forgets
to check for PG_MARKER.
Reviewed by: kib
Modified:
head/sys/vm/vm_pageout.c
Modified: head/sys/vm/vm_pageout.c
==============================================================================
--- head/sys/vm/vm_pageout.c Sat Jul 2 20:58:33 2011 (r223728)
+++ head/sys/vm/vm_pageout.c Sat Jul 2 23:34:47 2011 (r223729)
@@ -216,15 +216,21 @@ static void vm_req_vmdaemon(int req);
#endif
static void vm_pageout_page_stats(void);
+/*
+ * Initialize a dummy page for marking the caller's place in the specified
+ * paging queue. In principle, this function only needs to set the flag
+ * PG_MARKER. Nonetheless, it sets the flag VPO_BUSY and initializes the hold
+ * count to one as safety precautions.
+ */
static void
vm_pageout_init_marker(vm_page_t marker, u_short queue)
{
bzero(marker, sizeof(*marker));
- marker->flags = PG_FICTITIOUS | PG_MARKER;
+ marker->flags = PG_MARKER;
marker->oflags = VPO_BUSY;
marker->queue = queue;
- marker->wire_count = 1;
+ marker->hold_count = 1;
}
/*
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