极客笔记Linux内核API与文件系统相关的API有如下：
- Linux内核API __mnt_is_readonly
- Linux内核API current_umask
- Linux内核API d_alloc
- Linux内核API d_find_alias
- Linux内核API dput
- Linux内核API fget
- Linux内核API generic_fillattr
- Linux内核API get_fs_type
- Linux内核API get_max_files
- Linux内核API get_super
- Linux内核API have_submounts
- Linux内核API I_BDEV
- Linux内核API inode_add_bytes
- Linux内核API inode_get_bytes
- Linux内核API inode_set_bytes
- Linux内核API inode_sub_bytes
- Linux内核API is_bad_inode
- Linux内核API make_bad_inode
- Linux内核API may_umount
- Linux内核API may_umount_tree
- Linux内核API mnt_want_write
- Linux内核API notify_change
- Linux内核API put_unused_fd
- Linux内核API unshare_fs_struct
- Linux内核API vfs_fstat
- Linux内核API vfs_getattr
- Linux内核API vfs_statfs