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ARM: 9329/1: kasan: Use memblock_alloc_try_nid_raw for shadow page

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kasan_pte_populate fill KASAN_SHADOW_INIT in the newly
allocated shadow page, so it's unnecessary to
use memblock_alloc_try_nid, which always zero the
new allocated memory.

Use memblock_alloc_try_nid_raw instead of
memblock_alloc_try_nid like arm64 does which
can make kasan init faster.

Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Mark-PK Tsai 2023-10-19 14:38:16 +01:00 committed by Russell King (Oracle)
parent c16af12124
commit 89320c9785
1 changed files with 7 additions and 1 deletions
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8
arch/arm/mm/kasan_init.c
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@ -28,6 +28,12 @@ static pgd_t tmp_pgd_table[PTRS_PER_PGD] __initdata __aligned(PGD_SIZE);
pmd_t tmp_pmd_table[PTRS_PER_PMD] __page_aligned_bss;
static __init void *kasan_alloc_block_raw(size_t size)
{
return memblock_alloc_try_nid_raw(size, size, __pa(MAX_DMA_ADDRESS),
MEMBLOCK_ALLOC_NOLEAKTRACE, NUMA_NO_NODE);
}
static __init void *kasan_alloc_block(size_t size)
{
return memblock_alloc_try_nid(size, size, __pa(MAX_DMA_ADDRESS),
@ -50,7 +56,7 @@ static void __init kasan_pte_populate(pmd_t *pmdp, unsigned long addr,
if (!pte_none(READ_ONCE(*ptep)))
continue;
p = kasan_alloc_block(PAGE_SIZE);
p = kasan_alloc_block_raw(PAGE_SIZE);
if (!p) {
panic("%s failed to allocate shadow page for address 0x%lx\n",
__func__, addr);