s390/preempt: Add comments

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The s390 preempt_count implementation is more or less a copy of the x86
implementation using different instructions. For clarification how this
works also add all comments from x86 with some minor modifications.

Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

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Heiko Carstens 2024-12-04 12:31:00 +01:00 • committed by Alexander Gordeev

parent 9b90c57057

commit a7af4fb85e

1 changed files with 26 additions and 0 deletions

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arch/s390/include/asm/preempt.h

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