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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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appldata | ||
boot | ||
configs | ||
crypto | ||
hypfs | ||
include | ||
kernel | ||
kvm | ||
lib | ||
mm | ||
net | ||
pci | ||
purgatory | ||
tools | ||
Kbuild | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |