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Commit 9de45f73 authored by Martin Schwidefsky's avatar Martin Schwidefsky
Browse files

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: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 86ed42f4

arch/s390/include/asm/tlb.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -121,6 +121,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, 
#ifdef CONFIG_64BIT

#ifdef CONFIG_64BIT

	if (tlb->mm->context.asce_limit <= (1UL << 31))

	if (tlb->mm->context.asce_limit <= (1UL << 31))

		return;

		return;

	pgtable_pmd_page_dtor(virt_to_page(pmd));

	tlb_remove_table(tlb, pmd);

	tlb_remove_table(tlb, pmd);

#endif

#endif

}

}