fs/coda/coda_fs_i.h

Source file repositories/reference/linux-study-clean/fs/coda/coda_fs_i.h

File Facts

System
Linux kernel
Corpus path
fs/coda/coda_fs_i.h
Extension
.h
Size
1971 bytes
Lines
60
Domain
Core OS
Bucket
VFS And Filesystem Core
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct coda_inode_info {
	struct CodaFid	   c_fid;	/* Coda identifier */
	u_short	           c_flags;     /* flags (see below) */
	unsigned int	   c_mapcount;  /* nr of times this inode is mapped */
	unsigned int	   c_cached_epoch; /* epoch for cached permissions */
	kuid_t		   c_uid;	/* fsuid for cached permissions */
	unsigned int       c_cached_perm; /* cached access permissions */
	spinlock_t	   c_lock;
	struct inode	   vfs_inode;
};

/*
 * coda fs file private data
 */
#define CODA_MAGIC 0xC0DAC0DA
struct coda_file_info {
	int		   cfi_magic;	  /* magic number */
	struct file	  *cfi_container; /* container file for this cnode */
	unsigned int	   cfi_mapcount;  /* nr of times this file is mapped */
	bool		   cfi_access_intent; /* is access intent supported */
};

/* flags */
#define C_VATTR       0x1   /* Validity of vattr in inode */
#define C_FLUSH       0x2   /* used after a flush */
#define C_DYING       0x4   /* from venus (which died) */
#define C_PURGE       0x8

struct inode *coda_cnode_make(struct CodaFid *, struct super_block *);
struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
struct inode *coda_cnode_makectl(struct super_block *sb);
struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
struct coda_file_info *coda_ftoc(struct file *file);
void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);

#endif

Annotation

Implementation Notes