[PATCH -tip v7 23/26] kprobes/x86: Remove unneeded preempt_disable/enable in interrupt handlers

Since the int3 itself disables the local_irq and kprobes keeps it disabled while the single step has done, the kernel preemption never happen while processing a kprobe. This means that we don't need to disable/enable preemption. Also, this changes kprobe_int3_handler to use goto-out style.

[PATCH -tip v7 23/26] kprobes/x86: Remove unneeded preempt_disable/enable in interrupt handlers

Since the int3 itself disables the local_irq and kprobes keeps it disabled while the single step has done, the kernel preemption never happen while processing a kprobe. This means that we don't need to disable/enable preemption. Also, this changes kprobe_int3_handler to use goto-out style.