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Suzanne Wood <suzannew@cs.pdx.edu> : [...] > (3) bpq_free_device() calls list_del_rcu() which, according > to list.h, requires synchronize_rcu() which can block or > call_rcu() or call_rcu_bh() which cannot block. > None of these is called anywhere in the directory drivers/net, > so synchronize_irq() may address this. > (synchronize_sched() is called in drivers/net/sis190.c and > r8169.c with FIXME comment about synchronize_irq().) Same author for both. The code (driver specific) can be issued from userspace and it needs to wait for running hard_start_xmit to complete. Afaik synchronize_irq() is not adequate and the FIXME should go. -- Ueimor - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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