preempt: Cleanup the macro maze a bit

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Make the macro maze consistent and prepare it for adding the RT variant for
BH accounting.

 - Use nmi_count() for the NMI portion of preempt count
 - Introduce in_hardirq() to make the naming consistent and non-ambiguos
 - Use the macros to create combined checks (e.g. in_task()) so the
   softirq representation for RT just falls into place.
 - Update comments and move the deprecated macros aside

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20201113141733.864469886@linutronix.de

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Thomas Gleixner 2020-11-13 15:02:17 +01:00

parent e091bc90cd

commit 15115830c8

1 changed files with 16 additions and 14 deletions

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include/linux/preempt.h

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