d_lookup (9) - Linux Manuals

d_lookup: search for a dentry

Command to display d_lookup manual in Linux: $ man 9 d_lookup

NAME

d_lookup - search for a dentry

SYNOPSIS

struct dentry * d_lookup(const struct dentry * parent, const struct qstr * name);

ARGUMENTS

parent

: parent dentry

name

: qstr of name we wish to find

RETURN

dentry, or NULL

d_lookup searches the children of the parent dentry for the name in question. If the dentry is found its reference count is incremented and the dentry is returned. The caller must use dput to free the entry when it has finished using it. NULL is returned if the dentry does not exist.