From 99015f3a985b2fd051606636743a2a2969b216e8 Mon Sep 17 00:00:00 2001 From: Mole Shang <135e2@135e2.dev> Date: Fri, 16 Feb 2024 10:05:03 +0800 Subject: lab lock/bcache: finish --- kernel/buf.h | 1 + 1 file changed, 1 insertion(+) (limited to 'kernel/buf.h') diff --git a/kernel/buf.h b/kernel/buf.h index 4616e9e..bbef407 100644 --- a/kernel/buf.h +++ b/kernel/buf.h @@ -8,5 +8,6 @@ struct buf { struct buf *prev; // LRU cache list struct buf *next; uchar data[BSIZE]; + uint ticks; // derived from global variable ticks (trap.c), record ticks when last modified }; -- cgit v1.2.3