From: Dave Hansen <dave@sr71.net>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, kirill.shutemov@linux.intel.com,
Dave Hansen <dave@sr71.net>
Subject: [PATCH 07/10] mm: pagewalk: kill check for hugetlbfs inside /proc pagemap code
Date: Mon, 02 Jun 2014 14:36:53 -0700 [thread overview]
Message-ID: <20140602213653.4520DC58@viggo.jf.intel.com> (raw)
In-Reply-To: <20140602213644.925A26D0@viggo.jf.intel.com>
From: Dave Hansen <dave.hansen@linux.intel.com>
The page map code does not call the normal handlers for hugetlbfs
areas. They are handled by ->hugetlb_entry exclusively, so
remove the check for it.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
---
b/fs/proc/task_mmu.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff -puN fs/proc/task_mmu.c~do-not-check-for-hugetlbfs-inside-pagemap-walker fs/proc/task_mmu.c
--- a/fs/proc/task_mmu.c~do-not-check-for-hugetlbfs-inside-pagemap-walker 2014-06-02 14:20:20.693870160 -0700
+++ b/fs/proc/task_mmu.c 2014-06-02 14:20:20.697870340 -0700
@@ -1033,8 +1033,7 @@ static int pagemap_pte_range(pmd_t *pmd,
/* check that 'vma' actually covers this address,
* and that it isn't a huge page vma */
- if (vma && (vma->vm_start <= addr) &&
- !is_vm_hugetlb_page(vma)) {
+ if (vma && (vma->vm_start <= addr)) {
pte = pte_offset_map(pmd, addr);
pte_to_pagemap_entry(&pme, pm, vma, addr, *pte);
/* unmap before userspace copy */
_
--
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next prev parent reply other threads:[~2014-06-02 21:36 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-02 21:36 [PATCH 00/10] mm: pagewalk: huge page cleanups and VMA passing Dave Hansen
2014-06-02 21:36 ` [PATCH 01/10] mm: pagewalk: consolidate vma->vm_start checks Dave Hansen
2014-06-02 21:36 ` [PATCH 02/10] mm: pagewalk: always skip hugetlbfs except when explicitly handled Dave Hansen
2014-06-02 21:36 ` [PATCH 03/10] mm: pagewalk: have generic code keep track of VMA Dave Hansen
2014-06-02 21:36 ` [PATCH 04/10] mm: pagewalk: add page walker for mincore() Dave Hansen
2014-06-02 21:36 ` [PATCH 05/10] mm: mincore: clean up hugetlbfs handling (part 1) Dave Hansen
2014-06-02 21:36 ` [PATCH 06/10] mm: mincore: clean up hugetlbfs handler (part 2) Dave Hansen
2014-06-02 21:36 ` Dave Hansen [this message]
2014-06-02 21:36 ` [PATCH 08/10] mm: pagewalk: add locked pte walker Dave Hansen
2014-06-02 21:36 ` [PATCH 09/10] mm: pagewalk: use new locked walker for /proc/pid/smaps Dave Hansen
2014-06-02 21:36 ` [PATCH 10/10] mm: pagewalk: use locked walker for /proc/pid/numa_maps Dave Hansen
2014-06-02 21:52 ` [PATCH 00/10] mm: pagewalk: huge page cleanups and VMA passing Naoya Horiguchi
[not found] ` <1401745925-l651h3s9@n-horiguchi@ah.jp.nec.com>
2014-06-02 21:53 ` Dave Hansen
2014-06-03 6:18 ` [PATCH -mm] mincore: apply page table walker on do_mincore() (Re: [PATCH 00/10] mm: pagewalk: huge page cleanups and VMA passing) Naoya Horiguchi
[not found] ` <1401776292-dn0fof8e@n-horiguchi@ah.jp.nec.com>
2014-06-03 15:55 ` Dave Hansen
2014-06-03 20:01 ` Naoya Horiguchi
2014-06-03 20:08 ` Naoya Horiguchi
[not found] ` <1401825676-8py0r32h@n-horiguchi@ah.jp.nec.com>
2014-06-03 20:33 ` Dave Hansen
2014-06-03 15:59 ` Dave Hansen
2014-06-03 16:22 ` Naoya Horiguchi
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