From: Eric Dumazet <edumazet@google.com>
Date: Mon, 16 Mar 2015 04:12:16 +0000 (-0700)
Subject: inet: add proper refcounting to request sock
X-Git-Tag: omap-for-v4.2/o2_dc~131^2~232^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=13854e5a6046;p=pandora-kernel.git

inet: add proper refcounting to request sock

reqsk_put() is the generic function that should be used
to release a refcount (and automatically call reqsk_free())

reqsk_free() might be called if refcount is known to be 0
or undefined.

refcnt is set to one in inet_csk_reqsk_queue_add()

As request socks are not yet in global ehash table,
I added temporary debugging checks in reqsk_put() and reqsk_free()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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