diff options
| -rw-r--r-- | arch/arm64/mm/mmu.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index b30bdffa3066..fc7a1c1e5d0f 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -656,10 +656,16 @@ static phys_addr_t pgd_pgtable_alloc(void) */ void hotplug_paging(phys_addr_t start, phys_addr_t size) { - struct page *pg; - phys_addr_t pgd_phys = pgd_pgtable_alloc(); - pgd_t *pgd = pgd_set_fixmap(pgd_phys); + phys_addr_t pgd_phys; + pgd_t *pgd; + int cpu; + + for_each_possible_cpu(cpu) + if (current->cpu != cpu) + sched_isolate_cpu(cpu); + pgd_phys = pgd_pgtable_alloc(); + pgd = pgd_set_fixmap(pgd_phys); memcpy(pgd, swapper_pg_dir, PAGE_SIZE); @@ -675,6 +681,9 @@ void hotplug_paging(phys_addr_t start, phys_addr_t size) pg = phys_to_page(pgd_phys); pgtable_page_dtor(pg); __free_pages(pg, 0); + for_each_possible_cpu(cpu) + if (current->cpu != cpu) + sched_unisolate_cpu_unlocked(cpu); } #ifdef CONFIG_MEMORY_HOTREMOVE |