linux-5.15/__rmqueue()
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開始行:
*参照元 [#x398a6b5]
#backlinks
*説明 [#mb6f287e]
-パス: [[linux-5.15/mm/page_alloc.c]]
-FIXME: これは何？
--説明
**引数 [#y5f87496]
-struct zone *zone
--
--[[linux-5.15/zone]]
-unsigned int order
--
-int migratetype
--
-unsigned int alloc_flags
--
**返り値 [#y423ef66]
-struct page *
--
--[[linux-5.15/page]]
**参考 [#s986cab1]
*実装 [#sc8c51f0]
/*
* Do the hard work of removing an element from the budd...
* Call me with the zone->lock already held.
*/
static __always_inline struct page *
__rmqueue(struct zone *zone, unsigned int order, int mig...
unsigned int alloc_flags)
{
struct page *page;
if (IS_ENABLED(CONFIG_CMA)) {
/*
* Balance movable allocations between regular and CMA...
* allocating from CMA when over half of the zone's fr...
* is in the CMA area.
*/
if (alloc_flags & ALLOC_CMA &&
zone_page_state(zone, NR_FREE_CMA_PAGES) >
zone_page_state(zone, NR_FREE_PAGES) / 2) {
page = __rmqueue_cma_fallback(zone, order);
if (page)
goto out;
}
}
-
--[[linux-5.15/IS_ENABLED()]]
--[[linux-5.15/zone_page_state()]]
--[[linux-5.15/__rmqueue_cmd_fallback()]]
retry:
page = __rmqueue_smallest(zone, order, migratetype);
if (unlikely(!page)) {
if (alloc_flags & ALLOC_CMA)
page = __rmqueue_cma_fallback(zone, order);
if (!page && __rmqueue_fallback(zone, order, migratety...
alloc_flags))
goto retry;
}
-
--[[linux-5.15/__rmqueue_smallest()]]
--[[linux-5.15/unlikely()]]
--[[linux-5.15/__rmqueue_cma_fallback()]]
--[[linux-5.15/__rmqueue_fallback()]]
out:
if (page)
trace_mm_page_alloc_zone_locked(page, order, migratety...
return page;
}
-
--[[linux-5.15/trace_mm_page_alloc_zone_locked()]]
*コメント [#r019216b]
終了行:
*参照元 [#x398a6b5]
#backlinks
*説明 [#mb6f287e]
-パス: [[linux-5.15/mm/page_alloc.c]]
-FIXME: これは何？
--説明
**引数 [#y5f87496]
-struct zone *zone
--
--[[linux-5.15/zone]]
-unsigned int order
--
-int migratetype
--
-unsigned int alloc_flags
--
**返り値 [#y423ef66]
-struct page *
--
--[[linux-5.15/page]]
**参考 [#s986cab1]
*実装 [#sc8c51f0]
/*
* Do the hard work of removing an element from the budd...
* Call me with the zone->lock already held.
*/
static __always_inline struct page *
__rmqueue(struct zone *zone, unsigned int order, int mig...
unsigned int alloc_flags)
{
struct page *page;
if (IS_ENABLED(CONFIG_CMA)) {
/*
* Balance movable allocations between regular and CMA...
* allocating from CMA when over half of the zone's fr...
* is in the CMA area.
*/
if (alloc_flags & ALLOC_CMA &&
zone_page_state(zone, NR_FREE_CMA_PAGES) >
zone_page_state(zone, NR_FREE_PAGES) / 2) {
page = __rmqueue_cma_fallback(zone, order);
if (page)
goto out;
}
}
-
--[[linux-5.15/IS_ENABLED()]]
--[[linux-5.15/zone_page_state()]]
--[[linux-5.15/__rmqueue_cmd_fallback()]]
retry:
page = __rmqueue_smallest(zone, order, migratetype);
if (unlikely(!page)) {
if (alloc_flags & ALLOC_CMA)
page = __rmqueue_cma_fallback(zone, order);
if (!page && __rmqueue_fallback(zone, order, migratety...
alloc_flags))
goto retry;
}
-
--[[linux-5.15/__rmqueue_smallest()]]
--[[linux-5.15/unlikely()]]
--[[linux-5.15/__rmqueue_cma_fallback()]]
--[[linux-5.15/__rmqueue_fallback()]]
out:
if (page)
trace_mm_page_alloc_zone_locked(page, order, migratety...
return page;
}
-
--[[linux-5.15/trace_mm_page_alloc_zone_locked()]]
*コメント [#r019216b]
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