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| author | Mole Shang <[email protected]> | 2024-02-17 12:23:15 +0800 |
|---|---|---|
| committer | Mole Shang <[email protected]> | 2024-02-17 12:39:50 +0800 |
| commit | 659b978caa5c97bbc2477d1393461c944544a1a7 (patch) | |
| tree | 9c1920f3e65443f838d0f6e8af020d0903ab3fcd /kernel/fs.h | |
| parent | e8e0a7b4c97064eb5e9415726d7e38aaceccd3fd (diff) | |
| download | xv6-labs-659b978caa5c97bbc2477d1393461c944544a1a7.tar.gz xv6-labs-659b978caa5c97bbc2477d1393461c944544a1a7.tar.bz2 xv6-labs-659b978caa5c97bbc2477d1393461c944544a1a7.zip | |
lab fs/bigfile: finish
Diffstat (limited to 'kernel/fs.h')
| -rw-r--r-- | kernel/fs.h | 8 |
1 files changed, 5 insertions, 3 deletions
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. |