[PATCH 1/3] Make sockets proper objhash objects and use checkpoint_obj() on them (v2)

Dan Smith danms at us.ibm.com
Thu Sep 3 08:08:08 PDT 2009

SH> Yes.  On the struct sock.  But what will drop the ref on the
SH> struct socket?  Or has one of your later patches, not yet in
SH> ckpt-v17-dev, added that?  Or, am I just missing a place where
SH> sock_put() will actually sock_release(sk->sk_socket)?

Hmm, I see what you mean.  I can't find any path where sock_put() will
release the struct socket.  What's weird is that there is a WARN_ON()
in af_unix.c:354 that should get tripped if we call sk_free() when we
still have a socket.  I don't see that, but now I'm not sure why.

Perhaps what we should do is orphan the struct sock before we add it
to the hash and then graft it onto a new struct socket before
attaching it to a struct file?

Dan Smith
IBM Linux Technology Center
email: danms at us.ibm.com

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