Commit 41fd59b7 authored by Bibo Mao's avatar Bibo Mao Committed by Dennis Zhou
Browse files

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: default avatarBibo Mao <maobibo@loongson.cn>
Signed-off-by: default avatarDennis Zhou <dennis@kernel.org>
parent 5d0c230f

mm/percpu.c

+9 −15
Original line number Diff line number Diff line
@@ -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);