x86/irq: Probe for PIC presence before allocating descs for legacy IRQs

[cascardo/linux.git] / arch / x86 / kernel / process_32.c

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 737527b..9f95091 100644 (file)
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -279,14 +279,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
        if (get_kernel_rpl() && unlikely(prev->iopl != next->iopl))
                set_iopl_mask(next->iopl);
 
-       /*
-        * If it were not for PREEMPT_ACTIVE we could guarantee that the
-        * preempt_count of all tasks was equal here and this would not be
-        * needed.
-        */
-       task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count);
-       this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count);
-
        /*
         * Now maybe handle debug registers and/or IO bitmaps
         */