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mm/percpu: Remove some local variables in pcpu_populate_pte 

In function pcpu_populate_pte there are already variable defined,
it can be reused for later use, here remove duplicated local
variables.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
This commit is contained in:
Bibo Mao 2023-07-12 11:16:20 +08:00 committed by Dennis Zhou
parent 5d0c230f1d
commit 41fd59b7f9
1 changed files with 9 additions and 15 deletions
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24
mm/percpu.c
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@ -3189,32 +3189,26 @@ void __init __weak pcpu_populate_pte(unsigned long addr)
pmd_t *pmd;
if (pgd_none(*pgd)) {
p4d_t *new;
new = memblock_alloc(P4D_TABLE_SIZE, P4D_TABLE_SIZE);
if (!new)
p4d = memblock_alloc(P4D_TABLE_SIZE, P4D_TABLE_SIZE);
if (!p4d)
goto err_alloc;
pgd_populate(&init_mm, pgd, new);
pgd_populate(&init_mm, pgd, p4d);
}
p4d = p4d_offset(pgd, addr);
if (p4d_none(*p4d)) {
pud_t *new;
new = memblock_alloc(PUD_TABLE_SIZE, PUD_TABLE_SIZE);
if (!new)
pud = memblock_alloc(PUD_TABLE_SIZE, PUD_TABLE_SIZE);
if (!pud)
goto err_alloc;
p4d_populate(&init_mm, p4d, new);
p4d_populate(&init_mm, p4d, pud);
}
pud = pud_offset(p4d, addr);
if (pud_none(*pud)) {
pmd_t *new;
new = memblock_alloc(PMD_TABLE_SIZE, PMD_TABLE_SIZE);
if (!new)
pmd = memblock_alloc(PMD_TABLE_SIZE, PMD_TABLE_SIZE);
if (!pmd)
goto err_alloc;
pud_populate(&init_mm, pud, new);
pud_populate(&init_mm, pud, pmd);
}
pmd = pmd_offset(pud, addr);