From: Dave Hansen <haveblue@us.ibm.com>
To: Hiroyuki KAMEZAWA <kamezawa.hiroyu@jp.fujitsu.com>
Cc: linux-mm <linux-mm@kvack.org>,
lhms <lhms-devel@lists.sourceforge.net>,
William Lee Irwin III <wli@holomorphy.com>,
Hirokazu Takahashi <taka@valinux.co.jp>,
ncunningham@linuxmail.org
Subject: Re: [RFC/PATCH] free_area[] bitmap elimination[0/3]
Date: Tue, 24 Aug 2004 09:53:52 -0700 [thread overview]
Message-ID: <1093366431.1009.28.camel@nighthawk> (raw)
In-Reply-To: <412B32D1.10005@jp.fujitsu.com>
On Tue, 2004-08-24 at 05:21, Hiroyuki KAMEZAWA wrote:
> /*
> + * These macros are used in alloc_pages()/free_pages(), buddy allocator.
> + * page_order(page) returns an order of a free page in buddy allocator.
> + * set_page_order(page, order) sets an order of a free page in buddy allocator.
> + * Invalidate_page_order() invalidates order information for avoiding
> + * conflicts of pages in transition state.
> + *
> + * this is used with PG_private flag
> + */
> +#define set_page_order(page,order)\
> + do {\
> + (page)->private = (order);\
> + SetPagePrivate((page));\
> + } while(0)
> +#define invalidate_page_order(page) ClearPagePrivate((page))
> +#define page_order(page) ((page)->private)
> +
> +/*
Can these be made into static inline functions instead of macros?
-- Dave
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next prev parent reply other threads:[~2004-08-24 16:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-24 12:21 [RFC/PATCH] free_area[] bitmap elimination[0/3] Hiroyuki KAMEZAWA
2004-08-24 16:53 ` Dave Hansen [this message]
2004-08-24 23:43 ` [Lhms-devel] " Hiroyuki KAMEZAWA
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