• Zach Brown's avatar
    SCTP: lock_sock_nested in sctp_sock_migrate · 5131a184
    Zach Brown authored
    sctp_sock_migrate() grabs the socket lock on a newly allocated socket while
    holding the socket lock on an old socket.  lockdep worries that this might
    be a recursive lock attempt.
    
     task/3026 is trying to acquire lock:
      (sk_lock-AF_INET){--..}, at: [<ffffffff88105b8c>] sctp_sock_migrate+0x2e3/0x327 [sctp]
     but task is already holding lock:
      (sk_lock-AF_INET){--..}, at: [<ffffffff8810891f>] sctp_accept+0xdf/0x1e3 [sctp]
    
    This patch tells lockdep that this locking is safe by using
    lock_sock_nested().
    Signed-off-by: default avatarZach Brown <zach.brown@oracle.com>
    Signed-off-by: default avatarVlad Yasevich <vladislav.yasevich@hp.com>
    5131a184
socket.c 174 KB