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| author | Mark-PK Tsai <mark-pk.tsai@mediatek.com> | 2023-10-19 15:38:16 +0200 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-12-05 12:42:15 +0100 |
| commit | 89320c9785e8429155f8dfa44a183b509866e852 (patch) | |
| tree | d3fb5006040aeebdde872ace6c4739faf8058f25 | |
| parent | ARM: 9328/1: mm: try VMA lock-based page fault handling first (diff) | |
| download | linux-89320c9785e8429155f8dfa44a183b509866e852.tar.xz linux-89320c9785e8429155f8dfa44a183b509866e852.zip | |
ARM: 9329/1: kasan: Use memblock_alloc_try_nid_raw for shadow page
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>
| -rw-r--r-- | arch/arm/mm/kasan_init.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/mm/kasan_init.c b/arch/arm/mm/kasan_init.c index 24d71b5db62d..111d4f703136 100644 --- a/arch/arm/mm/kasan_init.c +++ b/arch/arm/mm/kasan_init.c @@ -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); |