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powerpc/64s: Fix stress_hpt memblock alloc alignment

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The stress_hpt memblock allocation did not pass in an alignment,
which causes a stack dump in early boot (that I missed, oops).

Fixes: 6b34a099faa1 ("powerpc/64s/hash: add stress_hpt kernel boot option to increase hash faults")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221216115930.2667772-2-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2022-12-16 21:59:27 +10:00 committed by Michael Ellerman
parent ffc8e90dec
commit dea18da459
1 changed files with 2 additions and 1 deletions
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3
arch/powerpc/mm/book3s64/hash_utils.c
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@ -1051,7 +1051,8 @@ static void __init htab_initialize(void)
static_branch_enable(&stress_hpt_key);
// Too early to use nr_cpu_ids, so use NR_CPUS
tmp = memblock_phys_alloc_range(sizeof(struct stress_hpt_struct) * NR_CPUS,
0, 0, MEMBLOCK_ALLOC_ANYWHERE);
__alignof__(struct stress_hpt_struct),
0, MEMBLOCK_ALLOC_ANYWHERE);
memset((void *)tmp, 0xff, sizeof(struct stress_hpt_struct) * NR_CPUS);
stress_hpt_struct = __va(tmp);