s390: add optimized array_index_mask_nospec

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Add an optimized version of the array_index_mask_nospec function for
s390 based on a compare and a subtract with borrow.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Martin Schwidefsky 2018-01-26 12:01:55 +01:00

parent 7041d28115

commit e2dd833389

1 changed files with 24 additions and 0 deletions

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arch/s390/include/asm/barrier.h

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