Srivatsa S. Bhat cd45ae3803 scsi, fcoe: Fix CPU hotplug callback registration ... Subsystems that want to register CPU hotplug callbacks, as well as perform initialization for the CPUs that are already online, often do it as shown below: get_online_cpus(); for_each_online_cpu(cpu) init_cpu(cpu); register_cpu_notifier(&foobar_cpu_notifier); put_online_cpus(); This is wrong, since it is prone to ABBA deadlocks involving the cpu_add_remove_lock and the cpu_hotplug.lock (when running concurrently with CPU hotplug operations). Instead, the correct and race-free way of performing the callback registration is: cpu_notifier_register_begin(); for_each_online_cpu(cpu) init_cpu(cpu); /* Note the use of the double underscored version of the API */ __register_cpu_notifier(&foobar_cpu_notifier); cpu_notifier_register_done(); Fix the fcoe code in scsi by using this latter form of callback registration. Cc: Robert Love <robert.w.love@intel.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2014-03-20 13:43:45 +01:00
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fcoe_ctlr.c
fcoe_sysfs.c	SCSI for-linus on 20131110	2013-11-14 12:25:38 +09:00
fcoe_transport.c
fcoe.c	scsi, fcoe: Fix CPU hotplug callback registration	2014-03-20 13:43:45 +01:00
fcoe.h
libfcoe.h
Makefile