Release 4.7 include/linux/namei.h
#ifndef _LINUX_NAMEI_H
#define _LINUX_NAMEI_H
#include <linux/kernel.h>
#include <linux/path.h>
#include <linux/fcntl.h>
#include <linux/errno.h>
enum { MAX_NESTED_LINKS = 8 };
#define MAXSYMLINKS 40
/*
* Type of the last component on LOOKUP_PARENT
*/
enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
/*
* The bitmask for a lookup event:
* - follow links at the end
* - require a directory
* - ending slashes ok even for nonexistent files
* - internal "there are more path components" flag
* - dentry cache is untrusted; force a real lookup
* - suppress terminal automount
*/
#define LOOKUP_FOLLOW 0x0001
#define LOOKUP_DIRECTORY 0x0002
#define LOOKUP_AUTOMOUNT 0x0004
#define LOOKUP_PARENT 0x0010
#define LOOKUP_REVAL 0x0020
#define LOOKUP_RCU 0x0040
#define LOOKUP_NO_REVAL 0x0080
/*
* Intent data
*/
#define LOOKUP_OPEN 0x0100
#define LOOKUP_CREATE 0x0200
#define LOOKUP_EXCL 0x0400
#define LOOKUP_RENAME_TARGET 0x0800
#define LOOKUP_JUMPED 0x1000
#define LOOKUP_ROOT 0x2000
#define LOOKUP_EMPTY 0x4000
extern int path_pts(struct path *path);
extern int user_path_at_empty(int, const char __user *, unsigned, struct path *, int *empty);
static inline int user_path_at(int dfd, const char __user *name, unsigned flags,
struct path *path)
{
return user_path_at_empty(dfd, name, flags, path, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| al viro | al viro | 23 | 60.53% | 1 | 50.00% |
| andy whitcroft | andy whitcroft | 15 | 39.47% | 1 | 50.00% |
| Total | 38 | 100.00% | 2 | 100.00% |
static inline int user_path(const char __user *name, struct path *path)
{
return user_path_at_empty(AT_FDCWD, name, LOOKUP_FOLLOW, path, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| al viro | al viro | 29 | 90.62% | 2 | 66.67% |
| harvey harrison | harvey harrison | 3 | 9.38% | 1 | 33.33% |
| Total | 32 | 100.00% | 3 | 100.00% |
static inline int user_lpath(const char __user *name, struct path *path)
{
return user_path_at_empty(AT_FDCWD, name, 0, path, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| al viro | al viro | 28 | 87.50% | 2 | 66.67% |
| christoph hellwig | christoph hellwig | 4 | 12.50% | 1 | 33.33% |
| Total | 32 | 100.00% | 3 | 100.00% |
static inline int user_path_dir(const char __user *name, struct path *path)
{
return user_path_at_empty(AT_FDCWD, name,
LOOKUP_FOLLOW | LOOKUP_DIRECTORY, path, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| al viro | al viro | 30 | 88.24% | 2 | 66.67% |
| christoph hellwig | christoph hellwig | 4 | 11.76% | 1 | 33.33% |
| Total | 34 | 100.00% | 3 | 100.00% |
extern int kern_path(const char *, unsigned, struct path *);
extern struct dentry *kern_path_create(int, const char *, struct path *, unsigned int);
extern struct dentry *user_path_create(int, const char __user *, struct path *, unsigned int);
extern void done_path_create(struct path *, struct dentry *);
extern struct dentry *kern_path_locked(const char *, struct path *);
extern int kern_path_mountpoint(int, const char *, struct path *, unsigned int);
extern struct dentry *lookup_one_len(const char *, struct dentry *, int);
extern struct dentry *lookup_one_len_unlocked(const char *, struct dentry *, int);
struct qstr;
extern struct dentry *lookup_hash(const struct qstr *, struct dentry *);
extern int follow_down_one(struct path *);
extern int follow_down(struct path *);
extern int follow_up(struct path *);
extern struct dentry *lock_rename(struct dentry *, struct dentry *);
extern void unlock_rename(struct dentry *, struct dentry *);
extern void nd_jump_link(struct path *path);
static inline void nd_terminate_link(void *name, size_t len, size_t maxlen)
{
((char *) name)[min(len, maxlen)] = '\0';
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| duane griffin | duane griffin | 35 | 100.00% | 1 | 100.00% |
| Total | 35 | 100.00% | 1 | 100.00% |
/**
* retry_estale - determine whether the caller should retry an operation
* @error: the error that would currently be returned
* @flags: flags being used for next lookup attempt
*
* Check to see if the error code was -ESTALE, and then determine whether
* to retry the call based on whether "flags" already has LOOKUP_REVAL set.
*
* Returns true if the caller should try the operation again.
*/
static inline bool
retry_estale(const long error, const unsigned int flags)
{
return error == -ESTALE && !(flags & LOOKUP_REVAL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jeff layton | jeff layton | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
#endif /* _LINUX_NAMEI_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| al viro | al viro | 246 | 44.17% | 17 | 42.50% |
| christoph hellwig | christoph hellwig | 115 | 20.65% | 2 | 5.00% |
| duane griffin | duane griffin | 35 | 6.28% | 1 | 2.50% |
| jeff layton | jeff layton | 32 | 5.75% | 2 | 5.00% |
| harvey harrison | harvey harrison | 22 | 3.95% | 1 | 2.50% |
| miklos szeredi | miklos szeredi | 19 | 3.41% | 1 | 2.50% |
| neil brown | neil brown | 17 | 3.05% | 1 | 2.50% |
| andy whitcroft | andy whitcroft | 15 | 2.69% | 1 | 2.50% |
| trond myklebust | trond myklebust | 11 | 1.97% | 3 | 7.50% |
| eric w. biederman | eric w. biederman | 10 | 1.80% | 1 | 2.50% |
| david howells | david howells | 10 | 1.80% | 2 | 5.00% |
| nick piggin | nick piggin | 8 | 1.44% | 1 | 2.50% |
| hirofumi ogawa | hirofumi ogawa | 4 | 0.72% | 1 | 2.50% |
| linus torvalds | linus torvalds | 4 | 0.72% | 1 | 2.50% |
| alexey dobriyan | alexey dobriyan | 2 | 0.36% | 1 | 2.50% |
| david s. miller | david s. miller | 2 | 0.36% | 1 | 2.50% |
| jan blunck | jan blunck | 2 | 0.36% | 1 | 2.50% |
| stephen warren | stephen warren | 2 | 0.36% | 1 | 2.50% |
| josef 'jeff' sipek | josef 'jeff' sipek | 1 | 0.18% | 1 | 2.50% |
| Total | 557 | 100.00% | 40 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.