tree d46ece3c91564b177457203613c172059cae4cc0
parent 859d069ee1ddd87862e1d6a356a82ed417dbeb67
author Peter Zijlstra <peterz@infradead.org> 1590587429 +0200
committer Peter Zijlstra <peterz@infradead.org> 1594375201 +0200

x86/entry: Fix NMI vs IRQ state tracking

While the nmi_enter() users did
trace_hardirqs_{off_prepare,on_finish}() there was no matching
lockdep_hardirqs_*() calls to complete the picture.

Introduce idtentry_{enter,exit}_nmi() to enable proper IRQ state
tracking across the NMIs.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200623083721.216740948@infradead.org