summaryrefslogtreecommitdiff
path: root/kernel/buf.h
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/buf.h')
-rw-r--r--kernel/buf.h1
1 files changed, 1 insertions, 0 deletions
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
};