Eric Dumazet 1a35ca80c1 packet: dont call sleeping functions while holding rcu_read_lock() ... commit 654d1f8a01 (packet: less dev_put() calls) introduced a problem, calling potentially sleeping functions from a rcu_read_lock() protected section. Fix this by releasing lock before the sock_wmalloc()/memcpy_fromiovec() calls. After skb allocation and copy from user space, we redo device lookup and appropriate tests. Reported-and-tested-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2009-12-15 21:12:21 -08:00
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af_packet.c	packet: dont call sleeping functions while holding rcu_read_lock()	2009-12-15 21:12:21 -08:00