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// in-core file system types
struct inode {
uint dev; // Device number
uint inum; // Inode number
int ref; // Reference count
int busy; // Is the inode "locked"?
short type; // copy of disk inode
short major;
short minor;
short nlink;
uint size;
uint addrs[NADDRS];
};
extern uint rootdev;
#define NAMEI_LOOKUP 1
#define NAMEI_CREATE 2
#define NAMEI_DELETE 3
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