49 lines
1.6 KiB
Diff
49 lines
1.6 KiB
Diff
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From 0bfadbc4942a14d702d781c5b6a00ec747f4ed09 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= <f.gruenbichler@proxmox.com>
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Date: Fri, 23 Jun 2017 08:25:04 +0200
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Subject: [PATCH 2/4] Revert "mm: do not collapse stack gap into THP"
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This reverts commit e9dbbeb2e0b61881d67ba7818fd4b3f996a35f0b.
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Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
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---
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mm/huge_memory.c | 3 ---
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mm/khugepaged.c | 4 ----
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2 files changed, 7 deletions(-)
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diff --git a/mm/huge_memory.c b/mm/huge_memory.c
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index 75719aa0443a..49cb70b5993d 100644
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--- a/mm/huge_memory.c
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+++ b/mm/huge_memory.c
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@@ -660,9 +660,6 @@ int do_huge_pmd_anonymous_page(struct vm_fault *vmf)
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if (haddr < vma->vm_start || haddr + HPAGE_PMD_SIZE > vma->vm_end)
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return VM_FAULT_FALLBACK;
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- if (stack_guard_area(vma, haddr) ||
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- stack_guard_area(vma, haddr + HPAGE_PMD_SIZE))
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- return VM_FAULT_FALLBACK;
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if (unlikely(anon_vma_prepare(vma)))
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return VM_FAULT_OOM;
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if (unlikely(khugepaged_enter(vma, vma->vm_flags)))
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diff --git a/mm/khugepaged.c b/mm/khugepaged.c
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index 16379e5943a6..77ae3239c3de 100644
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--- a/mm/khugepaged.c
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+++ b/mm/khugepaged.c
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@@ -859,10 +859,6 @@ static int hugepage_vma_revalidate(struct mm_struct *mm, unsigned long address,
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return SCAN_ADDRESS_RANGE;
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if (!hugepage_vma_check(vma))
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return SCAN_VMA_CHECK;
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-
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- /* never try to collapse stack gap */
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- if (stack_guard_area(vma, hstart) || stack_guard_area(vma, hend))
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- return SCAN_ADDRESS_RANGE;
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return 0;
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}
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--
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2.11.0
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