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arm64: mm: make create_mapping_late() non-allocating 

The only purpose served by create_mapping_late() is to remap the already
mapped .text and .rodata kernel segments with read-only permissions. Since
we no longer allow block mappings to be split or merged,
create_mapping_late() should not pass an allocation function pointer into
__create_pgd_mapping(). So pass NULL instead.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Ard Biesheuvel 2016-07-22 19:32:24 +02:00 committed by Catalin Marinas
parent a95b0644b3
commit 258a1605c7
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/mm/mmu.c
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@ -312,7 +312,7 @@ static void create_mapping_late(phys_addr_t phys, unsigned long virt,
}
__create_pgd_mapping(init_mm.pgd, phys, virt, size, prot,
late_pgtable_alloc, !debug_pagealloc_enabled());
NULL, !debug_pagealloc_enabled());
}
static void __init __map_memblock(pgd_t *pgd, phys_addr_t start, phys_addr_t end)