mirror of https://gitee.com/openkylin/linux.git
arm64: mmu: drop pXd_present() 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/1544120495-17438-3-git-send-email-will.deacon@arm.com Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: Chintan Pandya <cpandya@codeaurora.org> Cc: Toshi Kani <toshi.kani@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Michal Hocko <mhocko@suse.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> 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>
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@ -1003,10 +1003,8 @@ int pmd_free_pte_page(pmd_t *pmdp, unsigned long addr)
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pmd = READ_ONCE(*pmdp);
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if (!pmd_present(pmd))
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return 1;
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if (!pmd_table(pmd)) {
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VM_WARN_ON(!pmd_table(pmd));
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VM_WARN_ON(1);
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return 1;
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}
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@ -1026,10 +1024,8 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr)
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pud = READ_ONCE(*pudp);
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if (!pud_present(pud))
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return 1;
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if (!pud_table(pud)) {
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VM_WARN_ON(!pud_table(pud));
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VM_WARN_ON(1);
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return 1;
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}
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