s390: move on_thread_stack() to processor.h

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As preparation for the stackleak feature move on_thread_stack() to
processor.h like x86.

Also make it __always_inline, and slightly optimize it by reading
current task's kernel stack pointer from lowcore.

Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Heiko Carstens 2023-03-27 11:37:27 +02:00 • committed by Vasily Gorbik

parent 60afa6d166

commit 22ca1e7738

2 changed files with 7 additions and 5 deletions

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5

arch/s390/include/asm/entry-common.h

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7

arch/s390/include/asm/processor.h

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