Move the actual pte population logic into a separate function vmemmap_populate_address() and have vmemmap_populate_basepages() walk through all base pages it needs to populate.
Signed-off-by: Joao Martins <[email protected]> --- mm/sparse-vmemmap.c | 44 ++++++++++++++++++++++++++------------------ 1 file changed, 26 insertions(+), 18 deletions(-) diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c index 370728c206ee..8814876edcfa 100644 --- a/mm/sparse-vmemmap.c +++ b/mm/sparse-vmemmap.c @@ -216,33 +216,41 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node) return pgd; } -int __meminit vmemmap_populate_basepages(unsigned long start, unsigned long end, - int node, struct vmem_altmap *altmap) +static int __meminit vmemmap_populate_address(unsigned long addr, int node, + struct vmem_altmap *altmap) { - unsigned long addr = start; pgd_t *pgd; p4d_t *p4d; pud_t *pud; pmd_t *pmd; pte_t *pte; + pgd = vmemmap_pgd_populate(addr, node); + if (!pgd) + return -ENOMEM; + p4d = vmemmap_p4d_populate(pgd, addr, node); + if (!p4d) + return -ENOMEM; + pud = vmemmap_pud_populate(p4d, addr, node); + if (!pud) + return -ENOMEM; + pmd = vmemmap_pmd_populate(pud, addr, node); + if (!pmd) + return -ENOMEM; + pte = vmemmap_pte_populate(pmd, addr, node, altmap); + if (!pte) + return -ENOMEM; + vmemmap_verify(pte, node, addr, addr + PAGE_SIZE); +} + +int __meminit vmemmap_populate_basepages(unsigned long start, unsigned long end, + int node, struct vmem_altmap *altmap) +{ + unsigned long addr = start; + for (; addr < end; addr += PAGE_SIZE) { - pgd = vmemmap_pgd_populate(addr, node); - if (!pgd) - return -ENOMEM; - p4d = vmemmap_p4d_populate(pgd, addr, node); - if (!p4d) - return -ENOMEM; - pud = vmemmap_pud_populate(p4d, addr, node); - if (!pud) - return -ENOMEM; - pmd = vmemmap_pmd_populate(pud, addr, node); - if (!pmd) - return -ENOMEM; - pte = vmemmap_pte_populate(pmd, addr, node, altmap); - if (!pte) + if (vmemmap_populate_address(addr, node, altmap)) return -ENOMEM; - vmemmap_verify(pte, node, addr, addr + PAGE_SIZE); } return 0; -- 2.17.1 _______________________________________________ Linux-nvdimm mailing list -- [email protected] To unsubscribe send an email to [email protected]
