Original version of that patch (commit a89941816726) had to be reverted
due to Xen allocating irqs in its cpu_up ops.
The first patch moves allocations into hotplug notifiers and the second
one restores the original patch (with minor adjustments to new hotplug
framework)
Boris Ostrovsky (2):
xen/x86: Move irq allocation from Xen smp_op.cpu_up()
hotplug: Prevent alloc/free of irq descriptors during cpu up/down
(again)
arch/x86/kernel/smpboot.c | 11 ---------
arch/x86/xen/enlighten.c | 53 +++++++++++++++++++++++++++++++++++++-------
arch/x86/xen/smp.c | 45 +------------------------------------
arch/x86/xen/smp.h | 3 ++
kernel/cpu.c | 8 ++++++
5 files changed, 57 insertions(+), 63 deletions(-)
