x86/traps: Get rid of unnecessary preempt_disable/preempt_enable_no_resched

Exception handlers which may run on IST stack call ist_enter() at the start
of execution and ist_exit() in the end. ist_enter() disables preemption
unconditionally and ist_exit() enables it.

So the extra preempt_disable/enable() pairs nested inside the
ist_enter/exit() regions are pointless and can be removed.

Signed-off-by: Alexander Kuleshov <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Jianyu Zhan <[email protected]>
Cc: Paul Gortmaker <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>

0 files changed, 0 insertions, 0 deletions