Merge branch 'parisc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux (ff72bf7a) · Commits · 戴 / test

Pull parisc fix from Helge Deller: "A memory leak fix from Christophe Jaillet which was introduced with kernel 4.0 and which leads to kernel crashes on parisc after 1-3 days" * 'parisc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: mm: Fix a memory leak related to pmd not attached to the pgd

arch/parisc/include/asm/pgalloc.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -72,7 +72,7 @@ static inline pmd_t pmd_alloc_one(struct mm_struct mm, unsigned long address)

		static inline void pmd_free(struct mm_struct mm, pmd_t pmd)
		{
		if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
		if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) {
		/*
		* This is the permanent pmd attached to the pgd;
		* cannot free it.
		@@ -81,6 +81,7 @@ static inline void pmd_free(struct mm_struct mm, pmd_t pmd)
		*/
		mm_inc_nr_pmds(mm);
		return;
		}
		free_pages((unsigned long)pmd, PMD_ORDER);
		}

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