--- 2.4.10pre14aa1/mm/memory.c.~1~	Sat Sep 22 08:29:47 2001
+++ 2.4.10pre14aa1/mm/memory.c	Sat Sep 22 10:11:43 2001
@@ -1123,6 +1123,12 @@
 	pte_t pte;
 	int ret = 1;
 
+	/*
+	 * With threads make sure the swap entry won't go
+	 * away under read_swap_cache_async().
+	 */
+	swap_duplicate(entry);
+
 	spin_unlock(&mm->page_table_lock);
 	page = lookup_swap_cache(entry);
 	if (!page) {
@@ -1131,6 +1137,7 @@
 		page = read_swap_cache_async(entry);
 		unlock_kernel();
 		if (!page) {
+			swap_free(entry);
 			spin_lock(&mm->page_table_lock);
 			/*
 			 * Back out if somebody else faulted in this pte while
@@ -1158,6 +1165,7 @@
 	if (!pte_same(*page_table, orig_pte)) {
 		UnlockPage(page);
 		page_cache_release(page);
+		swap_free(entry);
 		return 1;
 	}
 		
@@ -1165,7 +1173,7 @@
 	mm->rss++;
 	pte = mk_pte(page, vma->vm_page_prot);
 
-	swap_free(entry);
+	__swap_free(entry, 2);
 	if (exclusive_swap_page(page)) {
 		if (vma->vm_flags & VM_WRITE)
 			pte = pte_mkwrite(pte);