From: Andrew Morton <akpm@linux-foundation.org>
To: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: William Irwin <wli@holomorphy.com>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 5/5] mm: search from free_area_cache for the bigger size
Date: Wed, 1 Feb 2012 14:44:01 -0800 [thread overview]
Message-ID: <20120201144401.af84e3a2.akpm@linux-foundation.org> (raw)
In-Reply-To: <4F1019D3.8020709@linux.vnet.ibm.com>
On Fri, 13 Jan 2012 19:47:31 +0800
Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> wrote:
> If the required size is bigger than cached_hole_size, we would better search
> from free_area_cache, it is more easier to get free region, specifically for
> the 64 bit process whose address space is large enough
>
> Do it just as hugetlb_get_unmapped_area_topdown() in arch/x86/mm/hugetlbpage.c
Can this cause additional fragmentation of the virtual address region?
If so, what might be the implications of this?
--
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/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2012-02-01 22:44 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-13 11:44 [PATCH 1/5] hugetlbfs: fix hugetlb_get_unmapped_area Xiao Guangrong
2012-01-13 11:44 ` [PATCH 2/5] hugetlb: drop prev_vma in hugetlb_get_unmapped_area_topdown Xiao Guangrong
2012-03-07 22:01 ` Andrew Morton
2012-03-08 2:28 ` Xiao Guangrong
2012-01-13 11:45 ` [PATCH 3/5] hugetlb: try to search again if it is really needed Xiao Guangrong
2012-02-01 22:43 ` Andrew Morton
2012-02-02 5:19 ` Xiao Guangrong
2012-01-13 11:46 ` [PATCH 4/5] mm: do not reset cached_hole_size when vma is unmapped Xiao Guangrong
2012-01-13 11:47 ` [PATCH 5/5] mm: search from free_area_cache for the bigger size Xiao Guangrong
2012-02-01 22:44 ` Andrew Morton [this message]
2012-02-02 7:07 ` Xiao Guangrong
2012-01-31 6:05 ` [PATCH 1/5] hugetlbfs: fix hugetlb_get_unmapped_area Xiao Guangrong
2012-02-01 22:43 ` Andrew Morton
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=20120201144401.af84e3a2.akpm@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=wli@holomorphy.com \
--cc=xiaoguangrong@linux.vnet.ibm.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;
as well as URLs for NNTP newsgroup(s).