Messages in this thread Patch in this message | | | From | Joonsoo Kim <> | Subject | [RFC PATCH v3 3/4] mm/page_alloc: move migratetype recheck logic to __free_one_page() | Date | Tue, 26 Aug 2014 17:08:17 +0900 |
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All the caller of __free_one_page() has same migratetype recheck logic, so we can move it to __free_one_page(). This reduce line of code and help future maintenance. This is also preparation step for "mm/page_alloc: restrict max order of merging on isolated pageblock" which fix the freepage accouting problem on freepage with more than pageblock order.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> --- mm/page_alloc.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6c952b6..809bfd3 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -578,7 +578,14 @@ static inline void __free_one_page(struct page *page, return; VM_BUG_ON(migratetype == -1); + if (unlikely(has_isolate_pageblock(zone))) { + migratetype = get_pfnblock_migratetype(page, pfn); + if (is_migrate_isolate(migratetype)) + goto skip_counting; + } + __mod_zone_freepage_state(zone, 1 << order, migratetype); +skip_counting: page_idx = pfn & ((1 << MAX_ORDER) - 1); VM_BUG_ON_PAGE(page_idx & ((1 << order) - 1), page); @@ -716,14 +723,7 @@ static void free_pcppages_bulk(struct zone *zone, int count, /* must delete as __free_one_page list manipulates */ list_del(&page->lru); mt = get_freepage_migratetype(page); - if (unlikely(has_isolate_pageblock(zone))) { - mt = get_pageblock_migratetype(page); - if (is_migrate_isolate(mt)) - goto skip_counting; - } - __mod_zone_freepage_state(zone, 1, mt); -skip_counting: /* MIGRATE_MOVABLE list may include MIGRATE_RESERVEs */ __free_one_page(page, page_to_pfn(page), zone, 0, mt); trace_mm_page_pcpu_drain(page, 0, mt); @@ -743,14 +743,6 @@ static void free_one_page(struct zone *zone, if (nr_scanned) __mod_zone_page_state(zone, NR_PAGES_SCANNED, -nr_scanned); - if (unlikely(has_isolate_pageblock(zone))) { - migratetype = get_pfnblock_migratetype(page, pfn); - if (is_migrate_isolate(migratetype)) - goto skip_counting; - } - __mod_zone_freepage_state(zone, 1 << order, migratetype); - -skip_counting: __free_one_page(page, pfn, zone, order, migratetype); spin_unlock(&zone->lock); } -- 1.7.9.5
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