linux-4.4.1/test_pages_isolated()
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開始行:
*参照元 [#j99e3078]
#backlinks
*説明 [#xdf1a2c6]
-パス: [[linux-4.4.1/mm/page_isolation.c]]
-FIXME: これは何？
--説明
**引数 [#a3e91d79]
-unsigned long start_pfn
--
-unsigned long end_pfn
--
-bool skip_hwpoisoned_pages
--
**返り値 [#a4d8fd44]
-int
--成功ならば 0、失敗ならば負のエラー値
**参考 [#l3de4210]
*実装 [#na7a90b4]
int test_pages_isolated(unsigned long start_pfn, unsigne...
bool skip_hwpoisoned_pages)
{
unsigned long pfn, flags;
struct page *page;
struct zone *zone;
int ret;
-
--[[linux-4.4.1/page]]
--[[linux-4.4.1/zone]]
/*
* Note: pageblock_nr_pages != MAX_ORDER. Then, chunks ...
* are not aligned to pageblock_nr_pages.
* Then we just check migratetype first.
*/
for (pfn = start_pfn; pfn < end_pfn; pfn += pageblock_n...
page = __first_valid_page(pfn, pageblock_nr_pages);
if (page && get_pageblock_migratetype(page) != MIGRATE...
break;
}
-
--[[linux-4.4.1/pageblock_nr_pages(global)]]
--[[linux-4.4.1/__first_valid_page()]]
--[[linux-4.4.1/get_pageblock_migratetype()]]
page = __first_valid_page(start_pfn, end_pfn - start_pf...
if ((pfn < end_pfn) || !page)
return -EBUSY;
/* Check all pages are free or marked as ISOLATED */
zone = page_zone(page);
spin_lock_irqsave(&zone->lock, flags);
ret = __test_page_isolated_in_pageblock(start_pfn, end_...
skip_hwpoisoned_pages);
spin_unlock_irqrestore(&zone->lock, flags);
-
--[[linux-4.4.1/page_zone()]]
--[[linux-4.4.1/spin_lock_irqsave()]]
--[[linux-4.4.1/__test_page_isolated_in_pageblock()]]
--[[linux-4.4.1/spin_unlock_irqrestore()]]
return ret ? 0 : -EBUSY;
}
*コメント [#y64f7d41]
終了行:
*参照元 [#j99e3078]
#backlinks
*説明 [#xdf1a2c6]
-パス: [[linux-4.4.1/mm/page_isolation.c]]
-FIXME: これは何？
--説明
**引数 [#a3e91d79]
-unsigned long start_pfn
--
-unsigned long end_pfn
--
-bool skip_hwpoisoned_pages
--
**返り値 [#a4d8fd44]
-int
--成功ならば 0、失敗ならば負のエラー値
**参考 [#l3de4210]
*実装 [#na7a90b4]
int test_pages_isolated(unsigned long start_pfn, unsigne...
bool skip_hwpoisoned_pages)
{
unsigned long pfn, flags;
struct page *page;
struct zone *zone;
int ret;
-
--[[linux-4.4.1/page]]
--[[linux-4.4.1/zone]]
/*
* Note: pageblock_nr_pages != MAX_ORDER. Then, chunks ...
* are not aligned to pageblock_nr_pages.
* Then we just check migratetype first.
*/
for (pfn = start_pfn; pfn < end_pfn; pfn += pageblock_n...
page = __first_valid_page(pfn, pageblock_nr_pages);
if (page && get_pageblock_migratetype(page) != MIGRATE...
break;
}
-
--[[linux-4.4.1/pageblock_nr_pages(global)]]
--[[linux-4.4.1/__first_valid_page()]]
--[[linux-4.4.1/get_pageblock_migratetype()]]
page = __first_valid_page(start_pfn, end_pfn - start_pf...
if ((pfn < end_pfn) || !page)
return -EBUSY;
/* Check all pages are free or marked as ISOLATED */
zone = page_zone(page);
spin_lock_irqsave(&zone->lock, flags);
ret = __test_page_isolated_in_pageblock(start_pfn, end_...
skip_hwpoisoned_pages);
spin_unlock_irqrestore(&zone->lock, flags);
-
--[[linux-4.4.1/page_zone()]]
--[[linux-4.4.1/spin_lock_irqsave()]]
--[[linux-4.4.1/__test_page_isolated_in_pageblock()]]
--[[linux-4.4.1/spin_unlock_irqrestore()]]
return ret ? 0 : -EBUSY;
}
*コメント [#y64f7d41]
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