From: Eric Dumazet <redacted>
Date: Sat, 19 Feb 2011 09:35:56 +0100

[PATCH] tcp: fix inet_twsk_deschedule()

Eric W. Biederman reported a lockdep splat in inet_twsk_deschedule()

This is caused by inet_twsk_purge(), run from process context,
and commit 575f4cd5a5b6394577 (net: Use rcu lookups in inet_twsk_purge.)
removed the BH disabling that was necessary.

Add the BH disabling but fine grained, right before calling
inet_twsk_deschedule(), instead of whole function.

With help from Linus Torvalds and Eric W. Biederman

Reported-by: Eric W. Biederman <redacted>
Signed-off-by: Eric Dumazet <redacted>
CC: Daniel Lezcano <redacted>
CC: Pavel Emelyanov <redacted>
CC: Arnaldo Carvalho de Melo <redacted>
CC: stable <stable@kernel.org> (# 2.6.33+)

Applied, thanks Eric.

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