kernel_optimize_test/kernel/entry
Thomas Gleixner 2694244327 x86/entry: Move nmi entry/exit into common code
commit b6be002bcd1dd1dedb926abf3c90c794eacb77dc upstream.

Lockdep state handling on NMI enter and exit is nothing specific to X86. It's
not any different on other architectures. Also the extra state type is not
necessary, irqentry_state_t can carry the necessary information as well.

Move it to common code and extend irqentry_state_t to carry lockdep state.

[ Ira: Make exit_rcu and lockdep a union as they are mutually exclusive
  between the IRQ and NMI exceptions, and add kernel documentation for
  struct irqentry_state_t ]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201102205320.1458656-7-ira.weiny@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-17 17:06:36 +01:00
..
common.c x86/entry: Move nmi entry/exit into common code 2021-03-17 17:06:36 +01:00
kvm.c tracehook: clear TIF_NOTIFY_RESUME in tracehook_notify_resume() 2020-10-17 15:04:36 -06:00
Makefile entry: Provide infrastructure for work before transitioning to guest mode 2020-07-24 15:03:42 +02:00