Kuniyuki Iwashima c4da4661d9
af_unix: Remove U_LOCK_DIAG. ...
sk_diag_dump_icons() acquires embryo's lock by unix_state_lock_nested()
to fetch its peer.
The embryo's ->peer is set to NULL only when its parent listener is
close()d. Then, unix_release_sock() is called for each embryo after
unlinking skb by skb_dequeue().
In sk_diag_dump_icons(), we hold the parent's recvq lock, so we need
not acquire unix_state_lock_nested(), and peer is always non-NULL.
Let's remove unnecessary unix_state_lock_nested() and non-NULL test
for peer.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com >
Signed-off-by: Paolo Abeni <pabeni@redhat.com >
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c4da4661d9