NFSv4: Fix a dentry leak on alias use
In the case where d_add_unique() finds an appropriate alias to use it will have already incremented the reference count. An additional dget() to swap the open context's dentry is unnecessary and will leak a reference. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Fixes: 275bb307 ("NFSv4: Move dentry instantiation into the NFSv4-...") Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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