riscv: turn mm_segment_t into a struct
This matches what other heavily used architectures do, and will allow us to easily use <asm-generic/uaccess.h> for the nommu case. Signed-off-by:Christoph Hellwig <hch@lst.de> Signed-off-by:
Palmer Dabbelt <palmer@sifive.com>
parent
df720961
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