D4478.1794793586.diff
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D4478.1794793586.diff
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	Index: sys/vm/vm_fault.c
	===================================================================
	--- sys/vm/vm_fault.c
	+++ sys/vm/vm_fault.c
	@@ -836,22 +836,20 @@
	*/
	fs.object == fs.first_object->backing_object) {
	/*
	- * get rid of the unnecessary page
	+ * grab the page and put it into the
	+ * process'es object.
	*/
	- vm_page_lock(fs.first_m);
	- vm_page_remove(fs.first_m);
	- vm_page_unlock(fs.first_m);
	+ vm_page_lock(fs.m);
	+ vm_page_remove(fs.m);
	+ vm_page_unlock(fs.m);
	+ if (vm_page_replace(fs.m, fs.first_object,
	+ fs.first_pindex) != fs.first_m)
	+ panic("%s: invalid page replacement",
	+ __func__);
	+ vm_page_dirty(fs.m);
	/*
	- * grab the page and put it into the
	- * process'es object. The page is
	- * automatically made dirty.
	+ * get rid of the unnecessary page
	*/
	- if (vm_page_rename(fs.m, fs.first_object,
	- fs.first_pindex)) {
	- VM_OBJECT_WUNLOCK(fs.first_object);
	- unlock_and_deallocate(&fs);
	- goto RetryFault;
	- }
	vm_page_lock(fs.first_m);
	vm_page_free(fs.first_m);
	vm_page_unlock(fs.first_m);