patch-2.2.0-pre1 linux/arch/i386/kernel/process.c

• Lines: 21
• Date: Sun Dec 27 22:45:13 1998
• Orig file: v2.1.132/linux/arch/i386/kernel/process.c
• Orig date: Tue Dec 22 14:16:54 1998

diff -u --recursive --new-file v2.1.132/linux/arch/i386/kernel/process.c linux/arch/i386/kernel/process.c
@@ -140,10 +140,17 @@
 	current->priority = 0;
 	current->counter = -100;
 	while(1) {
-		if (current_cpu_data.hlt_works_ok && !hlt_counter && !current->need_resched)
+		if (current_cpu_data.hlt_works_ok && !hlt_counter &&
+				 !current->need_resched)
 			__asm__("hlt");
-		schedule();
-		check_pgt_cache();
+		/*
+		 * although we are an idle CPU, we do not want to
+		 * get into the scheduler unnecessarily.
+		 */
+		if (current->need_resched) {
+			schedule();
+			check_pgt_cache();
+		}
 	}
 }