From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/3] mm: call vma_adjust_trans_huge() only for thp-enabled vma
Date: Wed, 26 Feb 2014 23:39:37 -0500 [thread overview]
Message-ID: <1393475977-3381-4-git-send-email-n-horiguchi@ah.jp.nec.com> (raw)
In-Reply-To: <1393475977-3381-1-git-send-email-n-horiguchi@ah.jp.nec.com>
vma_adjust() is called also for vma(VM_HUGETLB) and it could happen that
we happen to try to split hugetlbfs hugepage. So exclude the possibility.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
---
mm/mmap.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git next-20140220.orig/mm/mmap.c next-20140220/mm/mmap.c
index f53397806d7f..45a9c0d51e3f 100644
--- next-20140220.orig/mm/mmap.c
+++ next-20140220/mm/mmap.c
@@ -772,7 +772,8 @@ again: remove_next = 1 + (end > next->vm_end);
}
}
- vma_adjust_trans_huge(vma, start, end, adjust_next);
+ if (transparent_hugepage_enabled(vma))
+ vma_adjust_trans_huge(vma, start, end, adjust_next);
anon_vma = vma->anon_vma;
if (!anon_vma && adjust_next)
--
1.8.5.3
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2014-02-27 4:39 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-27 4:39 [PATCH 0/3] fixes on page table walker and hugepage rmapping Naoya Horiguchi
2014-02-27 4:39 ` [PATCH 1/3] mm/pagewalk.c: fix end address calculation in walk_page_range() Naoya Horiguchi
2014-02-27 21:03 ` Andrew Morton
2014-02-27 21:19 ` Naoya Horiguchi
2014-02-27 21:20 ` Kirill A. Shutemov
2014-02-27 21:54 ` Naoya Horiguchi
2014-02-27 4:39 ` [PATCH 2/3] mm, hugetlbfs: fix rmapping for anonymous hugepages with page_pgoff() Naoya Horiguchi
2014-02-27 21:19 ` Andrew Morton
2014-02-27 21:53 ` Naoya Horiguchi
2014-02-28 19:59 ` [PATCH v2] " Naoya Horiguchi
[not found] ` <5310ea8b.c425e00a.2cd9.ffffe097SMTPIN_ADDED_BROKEN@mx.google.com>
2014-02-28 23:14 ` Andrew Morton
2014-03-01 3:35 ` [PATCH v3] " Naoya Horiguchi
[not found] ` <1393644926-49vw3qw9@n-horiguchi@ah.jp.nec.com>
2014-03-01 23:08 ` Sasha Levin
2014-03-03 5:02 ` [PATCH] mm: add pte_present() check on existing hugetlb_entry callbacks Naoya Horiguchi
2014-03-03 20:06 ` Sasha Levin
2014-03-03 21:38 ` Sasha Levin
2014-03-04 21:32 ` Naoya Horiguchi
[not found] ` <1393968743-imrxpynb@n-horiguchi@ah.jp.nec.com>
2014-03-04 22:46 ` Sasha Levin
2014-03-04 23:49 ` Naoya Horiguchi
[not found] ` <1393976967-lnmm5xcs@n-horiguchi@ah.jp.nec.com>
2014-03-06 4:31 ` Sasha Levin
2014-03-06 16:08 ` Naoya Horiguchi
[not found] ` <1394122113-xsq3i6vw@n-horiguchi@ah.jp.nec.com>
2014-03-06 21:16 ` Sasha Levin
2014-03-07 6:35 ` Naoya Horiguchi
2014-03-15 6:45 ` Naoya Horiguchi
2014-02-27 4:39 ` Naoya Horiguchi [this message]
2014-02-27 21:23 ` [PATCH 3/3] mm: call vma_adjust_trans_huge() only for thp-enabled vma Andrew Morton
2014-02-27 22:08 ` Naoya Horiguchi
2014-02-27 22:56 ` Kirill A. Shutemov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1393475977-3381-4-git-send-email-n-horiguchi@ah.jp.nec.com \
--to=n-horiguchi@ah.jp.nec.com \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=sasha.levin@oracle.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox