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[PATCH] new helper - kern_path()

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Analog of lookup_path(), takes struct path *.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2008-08-02 00:49:18 -04:00
parent 2515ddc6db
commit d181146572
2 changed files with 12 additions and 0 deletions
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10
fs/namei.c
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@ -1106,6 +1106,15 @@ int path_lookup(const char *name, unsigned int flags,
return do_path_lookup(AT_FDCWD, name, flags, nd);
}
int kern_path(const char *name, unsigned int flags, struct path *path)
{
struct nameidata nd;
int res = do_path_lookup(AT_FDCWD, name, flags, &nd);
if (!res)
*path = nd.path;
return res;
}
/**
* vfs_path_lookup - lookup a file path relative to a dentry-vfsmount pair
* @dentry: pointer to dentry of the base directory
@ -2855,6 +2864,7 @@ EXPORT_SYMBOL(__page_symlink);
EXPORT_SYMBOL(page_symlink);
EXPORT_SYMBOL(page_symlink_inode_operations);
EXPORT_SYMBOL(path_lookup);
EXPORT_SYMBOL(kern_path);
EXPORT_SYMBOL(vfs_path_lookup);
EXPORT_SYMBOL(inode_permission);
EXPORT_SYMBOL(vfs_permission);

2
include/linux/namei.h
View file

@ -61,6 +61,8 @@ extern int user_path_at(int, const char __user *, unsigned, struct path *);
#define user_path_dir(name, path) \
user_path_at(AT_FDCWD, name, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, path)
extern int kern_path(const char *, unsigned, struct path *);
extern int path_lookup(const char *, unsigned, struct nameidata *);
extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
const char *, unsigned int, struct nameidata *);