Release 4.11 fs/hostfs/hostfs.h

#ifndef __UM_FS_HOSTFS

#define __UM_FS_HOSTFS

#include <os.h>

/*
 * These are exactly the same definitions as in fs.h, but the names are
 * changed so that this file can be included in both kernel and user files.
 */


#define HOSTFS_ATTR_MODE	1

#define HOSTFS_ATTR_UID 	2

#define HOSTFS_ATTR_GID 	4

#define HOSTFS_ATTR_SIZE	8

#define HOSTFS_ATTR_ATIME	16

#define HOSTFS_ATTR_MTIME	32

#define HOSTFS_ATTR_CTIME	64

#define HOSTFS_ATTR_ATIME_SET	128

#define HOSTFS_ATTR_MTIME_SET	256

/* These two are unused by hostfs. */

#define HOSTFS_ATTR_FORCE	512	
/* Not a change, but a change it */

#define HOSTFS_ATTR_ATTR_FLAG	1024

/*
 * If you are very careful, you'll notice that these two are missing:
 *
 * #define ATTR_KILL_SUID       2048
 * #define ATTR_KILL_SGID       4096
 *
 * and this is because they were added in 2.5 development.
 * Actually, they are not needed by most ->setattr() methods - they are set by
 * callers of notify_change() to notify that the setuid/setgid bits must be
 * dropped.
 * notify_change() will delete those flags, make sure attr->ia_valid & ATTR_MODE
 * is on, and remove the appropriate bits from attr->ia_mode (attr is a
 * "struct iattr *"). -BlaisorBlade
 */


struct hostfs_iattr {
	
unsigned int	ia_valid;
	
unsigned short	ia_mode;
	
uid_t		ia_uid;
	
gid_t		ia_gid;
	
loff_t		ia_size;
	
struct timespec	ia_atime;
	
struct timespec	ia_mtime;
	
struct timespec	ia_ctime;
};


struct hostfs_stat {
	
unsigned long long ino;
	
unsigned int mode;
	
unsigned int nlink;
	
unsigned int uid;
	
unsigned int gid;
	
unsigned long long size;
	


struct timespec atime, mtime, ctime;
	
unsigned int blksize;
	
unsigned long long blocks;
	
unsigned int maj;
	
unsigned int min;
};

extern int stat_file(const char *path, struct hostfs_stat *p, int fd);
extern int access_file(char *path, int r, int w, int x);
extern int open_file(char *path, int r, int w, int append);
extern void *open_dir(char *path, int *err_out);
extern void seek_dir(void *stream, unsigned long long pos);
extern char *read_dir(void *stream, unsigned long long *pos_out,
		      unsigned long long *ino_out, int *len_out,
		      unsigned int *type_out);
extern void close_file(void *stream);
extern int replace_file(int oldfd, int fd);
extern void close_dir(void *stream);
extern int read_file(int fd, unsigned long long *offset, char *buf, int len);
extern int write_file(int fd, unsigned long long *offset, const char *buf,
		      int len);
extern int lseek_file(int fd, long long offset, int whence);
extern int fsync_file(int fd, int datasync);
extern int file_create(char *name, int mode);
extern int set_attr(const char *file, struct hostfs_iattr *attrs, int fd);
extern int make_symlink(const char *from, const char *to);
extern int unlink_file(const char *file);
extern int do_mkdir(const char *file, int mode);
extern int do_rmdir(const char *file);
extern int do_mknod(const char *file, int mode, unsigned int major,
		    unsigned int minor);
extern int link_file(const char *from, const char *to);
extern int hostfs_do_readlink(char *file, char *buf, int size);
extern int rename_file(char *from, char *to);
extern int rename2_file(char *from, char *to, unsigned int flags);
extern int do_statfs(char *root, long *bsize_out, long long *blocks_out,
		     long long *bfree_out, long long *bavail_out,
		     long long *files_out, long long *ffree_out,
		     void *fsid_out, int fsid_size, long *namelen_out);

#endif
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Paolo 'Blaisorblade' Giarrusso
450
79.09%
3
18.75%
Al Viro
66
11.60%
4
25.00%
Miklos Szeredi
17
2.99%
1
6.25%
Richard Weinberger
16
2.81%
2
12.50%
Alberto Bertogli
6
1.05%
1
6.25%
Johannes Stezenbach
6
1.05%
1
6.25%
Geert Uytterhoeven
5
0.88%
1
6.25%
WANG Cong
1
0.18%
1
6.25%
Justin P. Mattock
1
0.18%
1
6.25%
Jeff Dike
1
0.18%
1
6.25%
Total
569
100.00%
16
100.00%
Directory: fs/hostfs

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