Samuel Holland 04bf2e5f95 riscv: Fix TASK_SIZE on 64-bit NOMMU
[ Upstream commit 6065e736f82c817c9a597a31ee67f0ce4628e948 ]

On NOMMU, userspace memory can come from anywhere in physical RAM. The
current definition of TASK_SIZE is wrong if any RAM exists above 4G,
causing spurious failures in the userspace access routines.

Fixes: 6bd33e1ece52 ("riscv: add nommu support")
Fixes: c3f896dcf1e4 ("mm: switch the test_vmalloc module to use __vmalloc_node")
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Bo Gan <ganboing@gmail.com>
Link: https://lore.kernel.org/r/20240227003630.3634533-2-samuel.holland@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:23:45 +02:00
..
2023-09-19 12:20:04 +02:00
2023-02-01 08:23:19 +01:00
2023-11-20 11:06:51 +01:00