| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | s390/rwonce: add READ_ONCE_ALIGNED_128() macro | Heiko Carstens | 2023-02-28 | 1 | -0/+31 |
| Add an s390 specific READ_ONCE_ALIGNED_128() helper, which can be used for fast block concurrent (atomic) 128-bit accesses. The used lpq instruction requires 128-bit alignment. This is also the reason why the compiler doesn't emit this instruction if __READ_ONCE() is used for 128-bit accesses. Link: https://lore.kernel.org/r/20230224100237.3247871-2-hca@linux.ibm.com Signed-off-by: Heiko Carstens <hca@linux.ibm.com> | |||||
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