From: Dave Hansen <haveblue@us.ibm.com>
To: Adam Litke <agl@us.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
libhugetlbfs-devel@lists.sourceforge.net,
Dave McCracken <dave.mccracken@oracle.com>,
linux-mm@kvack.org, Mel Gorman <mel@skynet.ie>,
Ken Chen <kenchen@google.com>, Andy Whitcroft <apw@shadowen.org>,
Bill Irwin <bill.irwin@oracle.com>
Subject: Re: [Libhugetlbfs-devel] [PATCH 2/4] hugetlb: Try to grow hugetlb pool for MAP_PRIVATE mappings
Date: Thu, 11 Oct 2007 15:09:43 -0700 [thread overview]
Message-ID: <1192140583.20859.40.camel@localhost> (raw)
In-Reply-To: <20071001151758.12825.26569.stgit@kernel>
On Mon, 2007-10-01 at 08:17 -0700, Adam Litke wrote:
>
> spin_lock(&hugetlb_lock);
> - enqueue_huge_page(page);
> + if (surplus_huge_pages_node[nid]) {
> + update_and_free_page(page);
> + surplus_huge_pages--;
> + surplus_huge_pages_node[nid]--;
> + } else {
> + enqueue_huge_page(page);
> + }
> spin_unlock(&hugetlb_lock);
> }
Why does it matter that these surplus pages are tracked per-node?
-- Dave
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next prev parent reply other threads:[~2007-10-11 22:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-01 15:17 [PATCH 0/4] [hugetlb] Dynamic huge page pool resizing V6 Adam Litke
2007-10-01 15:17 ` [PATCH 1/4] hugetlb: Move update_and_free_page Adam Litke
2007-10-02 10:03 ` Bill Irwin
2007-10-01 15:17 ` [PATCH 2/4] hugetlb: Try to grow hugetlb pool for MAP_PRIVATE mappings Adam Litke
2007-10-11 22:09 ` Dave Hansen [this message]
2007-10-12 12:50 ` [Libhugetlbfs-devel] " Mel Gorman
2007-10-01 15:18 ` [PATCH 3/4] hugetlb: Try to grow hugetlb pool for MAP_SHARED mappings Adam Litke
2007-10-01 15:18 ` [PATCH 4/4] hugetlb: Add hugetlb_dynamic_pool sysctl Adam Litke
2007-10-02 9:41 ` [PATCH 0/4] [hugetlb] Dynamic huge page pool resizing V6 Bill Irwin
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