From 9de45f736f21655400fd56b85bfbaf507cc2959d Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Thu, 4 Dec 2014 11:07:19 +0100 Subject: s390/mm: fix memory leak of ptlock in pmd_free_tlb The pmd_free_tlb function fails to call pgtable_pmd_page_dtor. Without the call the ptlock for the pmd tables will not be freed. Add the missing call. Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/tlb.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index 572c59949004..06d8741ad6f4 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -121,6 +121,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, #ifdef CONFIG_64BIT if (tlb->mm->context.asce_limit <= (1UL << 31)) return; + pgtable_pmd_page_dtor(virt_to_page(pmd)); tlb_remove_table(tlb, pmd); #endif } -- cgit v1.2.3