src/sys/vm/vm_mmap.c - diff

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version 1.19, 2004/03/23 22:54:32	version 1.20, 2004/05/13 17:40:19
Line 698 RestartScan:	Line 698 RestartScan:
/*	/*
* scan this entry one page at a time	* scan this entry one page at a time
*/	*/
while(addr < cend) {	while (addr < cend) {
/*	/*
* Check pmap first, it is likely faster, also	* Check pmap first, it is likely faster, also
* it can provide info as to whether we are the	* it can provide info as to whether we are the
Line 709 RestartScan:	Line 709 RestartScan:
vm_pindex_t pindex;	vm_pindex_t pindex;
vm_ooffset_t offset;	vm_ooffset_t offset;
vm_page_t m;	vm_page_t m;
	int s;

/*	/*
* calculate the page index into the object	* calculate the page index into the object
*/	*/
offset = current->offset + (addr - current->start);	offset = current->offset + (addr - current->start);
pindex = OFF_TO_IDX(offset);	pindex = OFF_TO_IDX(offset);
m = vm_page_lookup(current->object.vm_object,
pindex);
/*	/*
* if the page is resident, then gather information about	* if the page is resident, then gather
* it.	* information about it. spl protection is
	* required to maintain the object
	* association. And XXX what if the page is
	* busy? What's the deal with that?
*/	*/
	s = splvm();
	m = vm_page_lookup(current->object.vm_object,
	pindex);
if (m && m->valid) {	if (m && m->valid) {
mincoreinfo = MINCORE_INCORE;	mincoreinfo = MINCORE_INCORE;
if (m->dirty \|\|	if (m->dirty \|\|
Line 731 RestartScan:	Line 738 RestartScan:
mincoreinfo \|= MINCORE_REFERENCED_OTHER;	mincoreinfo \|= MINCORE_REFERENCED_OTHER;
}	}
}	}
	splx(s);
}	}

/*	/*