patch-2.4.0-test10 linux/mm/highmem.c

• Lines: 30
• Date: Wed Oct 18 14:25:46 2000
• Orig file: v2.4.0-test9/linux/mm/highmem.c
• Orig date: Mon Aug 14 13:11:16 2000

diff -u --recursive --new-file v2.4.0-test9/linux/mm/highmem.c linux/mm/highmem.c
@@ -130,10 +130,9 @@
 		if (pkmap_count[i] != 1)
 			continue;
 		pkmap_count[i] = 0;
-		pte = pkmap_page_table[i];
+		pte = ptep_get_and_clear(pkmap_page_table+i);
 		if (pte_none(pte))
 			BUG();
-		pte_clear(pkmap_page_table+i);
 		page = pte_page(pte);
 		page->virtual = NULL;
 	}
@@ -310,7 +309,7 @@
 repeat_bh:
 	bh = kmem_cache_alloc(bh_cachep, SLAB_BUFFER);
 	if (!bh) {
-		wakeup_bdflush(1);
+		wakeup_bdflush(1);  /* Sets task->state to TASK_RUNNING */
 		current->policy |= SCHED_YIELD;
 		schedule();
 		goto repeat_bh;
@@ -324,7 +323,7 @@
 repeat_page:
 	page = alloc_page(GFP_BUFFER);
 	if (!page) {
-		wakeup_bdflush(1);
+		wakeup_bdflush(1);  /* Sets task->state to TASK_RUNNING */
 		current->policy |= SCHED_YIELD;
 		schedule();
 		goto repeat_page;