__d_rcu_to_refcount9
Take a refcount on dentry if sequence check is ok
Usage
int __d_rcu_to_refcount(struct dentry * dentry, unsigned seq);
Arguments
dentry
dentry to take a ref on
seq
seqcount to verify against
Returns
0 on failure, else 1.
__d_rcu_to_refcount operates on a dentry,seq pair that was returned by __d_lookup_rcu, to get a reference on an rcu-walk dentry.