riscv: implement __get_kernel_nofault and __put_user_nofault

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Implement the non-faulting kernel access helpers directly instead of
abusing the uaccess routines under set_fs(KERNEL_DS).

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

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Christoph Hellwig 2020-09-07 07:58:24 +02:00 • committed by Palmer Dabbelt

parent f289a34811

commit d464118cdc

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arch/riscv/include/asm/uaccess.h

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