d5b897a6a1
We must not use d_add_ci if the dentry already has the real name. Otherwise, d_add_ci()->d_alloc_parallel() will find itself on the lookup hash and wait on itself causing deadlock. Tested-by: satmandu Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #5124 Closes #5141 Closes #5147 Closes #5148