tree f9f88e73a2484cf183996dd13ad461f982d4f50d
parent 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323
author Nicolas Pitre <nicolas.pitre@linaro.org> 1511815864 -0500
committer Tejun Heo <tj@kernel.org> 1511815992 -0800

percpu: hack to let the CRIS architecture to boot until they clean up

Commit 438a506180 ("percpu: don't forget to free the temporary struct
pcpu_alloc_info") uncovered a problem on the CRIS architecture where
the bootmem allocator is initialized with virtual addresses. Given it
has:

    #define __va(x) ((void *)((unsigned long)(x) | 0x80000000))

then things just work out because the end result is the same whether you
give this a physical or a virtual address.

Untill you call memblock_free_early(__pa(address)) that is, because
values from __pa() don't match with the virtual addresses stuffed in the
bootmem allocator anymore.

Avoid freeing the temporary pcpu_alloc_info memory on that architecture
until they fix things up to let the kernel boot like it did before.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: 438a506180 ("percpu: don't forget to free the temporary struct pcpu_alloc_info")