Re: [PATCH v2 32/33] s390: Implement the architecture-specific kmsan functions
From: Alexander Potapenko <glider@google.com>
Date: 2023-12-11 10:46:26
Also in:
linux-mm, linux-s390, lkml
quoted
Is there a possibility for infinite recursion here? E.g. can `lowcore_ptr[raw_smp_processor_id()]` point somewhere in between `(void *)&S390_lowcore` and `(void *)(&S390_lowcore + 1))`?No, it's allocated with __get_free_pages() or memblock_alloc_low(). But since this question came up, I should probably add a check and a WARN_ON_ONCE() here.
Yes, please. -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Paul Manicle, Liana Sebastian Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg