From 659b978caa5c97bbc2477d1393461c944544a1a7 Mon Sep 17 00:00:00 2001
From: Mole Shang <135e2@135e2.dev>
Date: Sat, 17 Feb 2024 12:23:15 +0800
Subject: lab fs/bigfile: finish

---
 kernel/fs.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'kernel/fs.h')

diff --git a/kernel/fs.h b/kernel/fs.h
index 139dcc9..9ae5ece 100644
--- a/kernel/fs.h
+++ b/kernel/fs.h
@@ -24,8 +24,10 @@ struct superblock {
 
 #define FSMAGIC 0x10203040
 
-#define NDIRECT 12
-#define NINDIRECT (BSIZE / sizeof(uint))
+#define NDIRECT 11
+#define NSG_INDIRECT (BSIZE / sizeof(uint))
+#define NDB_INDIRECT (NSG_INDIRECT * NSG_INDIRECT)
+#define NINDIRECT (NSG_INDIRECT + NDB_INDIRECT)
 #define MAXFILE (NDIRECT + NINDIRECT)
 
 // On-disk inode structure
@@ -35,7 +37,7 @@ struct dinode {
   short minor;          // Minor device number (T_DEVICE only)
   short nlink;          // Number of links to inode in file system
   uint size;            // Size of file (bytes)
-  uint addrs[NDIRECT+1];   // Data block addresses
+  uint addrs[NDIRECT+2];   // Data block addresses
 };
 
 // Inodes per block.
-- 
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