static int proc_sys_compare(struct dentry *dir, struct qstr *qstr,
struct qstr *name)
{
struct dentry *dentry = container_of(qstr, struct dentry, d_name);
if (qstr->len != name->len)
return 1;
if (memcmp(qstr->name, name->name, name->len))
return 1;
return !sysctl_is_seen(PROC_I(dentry->d_inode)->sysctl);
}
static int proc_sys_compare(const struct dentry *parent,
const struct inode *pinode,
const struct dentry *dentry, const struct inode *inode,
unsigned int len, const char *str, const struct qstr *name)
{
struct ctl_table_header *head;
/* Although proc doesn't have negative dentries, rcu-walk means
* that inode here can be NULL */
/* AV: can it, indeed? */
if (!inode)
return 1;
if (name->len != len)
return 1;
if (memcmp(name->name, str, len))
return 1;
head = rcu_dereference(PROC_I(inode)->sysctl);
return !head || !sysctl_is_seen(head);
}
