KFS

Toy file system, currently using FUSE.
In the future, I want to implement KFS in Kernel land.

Features

• mkdir
• read
• write
• readdir
• getattr
• access
• create
• unlink
• utimens
• chmod

Architecture

Any inode is typed as KFS_Entry. if an entry is a File, the entry has fentry field with content of the file, if an entry is directory, the entry has AVLTree of children elements.

Strucure defenition(in entry.h)

enum { tKFS_Dir, tKFS_File };

typedef struct {
  char *data;
} KFS_File;

typedef struct {
  AVLTree *childs;
} KFS_Dir;

typedef struct KFS_Entry {
  sds name;
  int entry_type; // KFS_Dir or KFS_File

  union {
    KFS_Dir *dentry;
    KFS_File *fentry;
  };

  mode_t mode;
  off_t size;
  nlink_t nlink;
  struct KFS_Entry *prev;
  struct timespec atime;
  struct timespec mtime;
} KFS_Entry;

License

KFS is released under the MIT license.
Please see details for LICENSE.
Copyright © 2019, Akihiro Shoji