Commit 48e178ab authored Dec 28, 2018 by Will Deacon Committed by Linus Torvalds Dec 28, 2018

x86/pgtable: drop pXd_none() checks from pXd_free_pYd_table()

The core code already has a check for pXd_none(), so remove it from the
architecture implementation.

Link: http://lkml.kernel.org/r/1544120495-17438-4-git-send-email-will.deacon@arm.com


Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Chintan Pandya <cpandya@codeaurora.org>
Cc: Toshi Kani <toshi.kani@hpe.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 9c006972

arch/x86/mm/pgtable.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -811,9 +811,6 @@ int pud_free_pmd_page(pud_t *pud, unsigned long addr)
		pte_t *pte;
		int i;

		if (pud_none(*pud))
		return 1;

		pmd = (pmd_t )pud_page_vaddr(pud);
		pmd_sv = (pmd_t *)__get_free_page(GFP_KERNEL);
		if (!pmd_sv)
		@@ -855,9 +852,6 @@ int pmd_free_pte_page(pmd_t *pmd, unsigned long addr)
		{
		pte_t *pte;

		if (pmd_none(*pmd))
		return 1;

		pte = (pte_t )pmd_page_vaddr(pmd);
		pmd_clear(pmd);

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