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| author | Qing Zhang <zhangqing@loongson.cn> | 2023-09-06 22:54:16 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2023-09-06 22:54:16 +0800 |
| commit | fb6d5c1d99ab6958c5e284f7aa5f0cc553f0268c (patch) | |
| tree | 8d200e80afe91eaa166af013a27b5bbe6168092f | |
| parent | 9b04c764af18a1dab6d48ca0671f70cdcccf90a2 (diff) | |
| download | lwn-fb6d5c1d99ab6958c5e284f7aa5f0cc553f0268c.tar.gz lwn-fb6d5c1d99ab6958c5e284f7aa5f0cc553f0268c.zip | |
kasan: Add (pmd|pud)_init for LoongArch zero_(pud|p4d)_populate process
LoongArch populates pmd/pud with invalid_pmd_table/invalid_pud_table in
pagetable_init, So pmd_init/pud_init(p) is required, define them as __weak
in mm/kasan/init.c, like mm/sparse-vmemmap.c.
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
| -rw-r--r-- | mm/kasan/init.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/mm/kasan/init.c b/mm/kasan/init.c index dcfec277e839..89895f38f722 100644 --- a/mm/kasan/init.c +++ b/mm/kasan/init.c @@ -139,6 +139,10 @@ static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr, return 0; } +void __weak __meminit pmd_init(void *addr) +{ +} + static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr, unsigned long end) { @@ -166,8 +170,9 @@ static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr, if (!p) return -ENOMEM; } else { - pud_populate(&init_mm, pud, - early_alloc(PAGE_SIZE, NUMA_NO_NODE)); + p = early_alloc(PAGE_SIZE, NUMA_NO_NODE); + pmd_init(p); + pud_populate(&init_mm, pud, p); } } zero_pmd_populate(pud, addr, next); @@ -176,6 +181,10 @@ static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr, return 0; } +void __weak __meminit pud_init(void *addr) +{ +} + static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr, unsigned long end) { @@ -207,8 +216,9 @@ static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr, if (!p) return -ENOMEM; } else { - p4d_populate(&init_mm, p4d, - early_alloc(PAGE_SIZE, NUMA_NO_NODE)); + p = early_alloc(PAGE_SIZE, NUMA_NO_NODE); + pud_init(p); + p4d_populate(&init_mm, p4d, p); } } zero_pud_populate(p4d, addr, next); |