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Viewing changes to mm/page_alloc.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-04kado7d1u2er2rl
Tags: 3.2.0-16.25
Add new lowlatency kernel flavour

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Lines of Context:
mm/page_alloc.c
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bool is_pageblock_removable_nolock(struct page *page)
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{
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        struct zone *zone = page_zone(page);
 
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        unsigned long pfn = page_to_pfn(page);
 
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        /*
 
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         * We have to be careful here because we are iterating over memory
 
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         * sections which are not zone aware so we might end up outside of
 
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         * the zone but still within the section.
 
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         */
 
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        if (!zone || zone->zone_start_pfn > pfn ||
 
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                        zone->zone_start_pfn + zone->spanned_pages <= pfn)
 
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                return false;
 
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        return __count_immobile_pages(zone, page, 0);
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}
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