Re: [PATCH v9 0/4] RISC-V: mm: Make SV48 the default address space

From: Conor Dooley
Date: Wed Aug 09 2023 - 03:43:43 EST


On Tue, Aug 08, 2023 at 06:51:06PM -0700, Charlie Jenkins wrote:
> Make sv48 the default address space for mmap as some applications
> currently depend on this assumption. Users can now select a
> desired address space using a non-zero hint address to mmap. Previously,
> requesting the default address space from mmap by passing zero as the hint
> address would result in using the largest address space possible. Some
> applications depend on empty bits in the virtual address space, like Go and
> Java, so this patch provides more flexibility for application developers.

This still does not build:
../fs/binfmt_flat.c:900:30: error: call to undeclared function 'is_compat_task'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

Reproduceable with allmodconfig.

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