powerpc: Don't ignore errors from set_memory_{n}p() in __kernel_map_pages()

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set_memory_p() and set_memory_np() can fail.

As mentioned in linux/mm.h:

/*
 * To support DEBUG_PAGEALLOC architecture must ensure that
 * __kernel_map_pages() never fails
 */

So panic in case set_memory_p() or set_memory_np() fail
in __kernel_map_pages().

Link: https://github.com/KSPP/linux/issues/7
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20ef75884aa6a636e8298736f3d1056b0793d3d9.1708078640.git.christophe.leroy@csgroup.eu

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This commit is contained in:

Christophe Leroy 2024-02-16 11:17:34 +01:00 • committed by Michael Ellerman

parent 3c8016e681

commit 9cbacb834b

3 changed files with 10 additions and 5 deletions

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3

arch/powerpc/mm/book3s64/hash_utils.c

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2

arch/powerpc/mm/mmu_decl.h

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10

arch/powerpc/mm/pageattr.c

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