[PATCHv22 03/16] mm: compaction: introduce map_pages()
From: m.szyprowski@samsung.com (Marek Szyprowski)
Date: 2012-02-17 19:33:55
Also in:
linux-media, linux-mm, lkml
Subsystem:
memory management, memory management - page allocator, the rest · Maintainers:
Andrew Morton, Vlastimil Babka, Linus Torvalds
From: Michal Nazarewicz <redacted> This commit creates a map_pages() function which map pages freed using split_free_pages(). This merely moves some code from isolate_freepages() so that it can be reused in other places. Signed-off-by: Michal Nazarewicz <redacted> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Mel Gorman <redacted> Reviewed-by: KAMEZAWA Hiroyuki <redacted> Tested-by: Robert Nelson <redacted> --- mm/compaction.c | 15 +++++++++++---- 1 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/mm/compaction.c b/mm/compaction.c
index 72f8685..de22893 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c@@ -127,6 +127,16 @@ static bool suitable_migration_target(struct page *page) return false; } +static void map_pages(struct list_head *list) +{ + struct page *page; + + list_for_each_entry(page, list, lru) { + arch_alloc_page(page, 0); + kernel_map_pages(page, 1, 1); + } +} + /* * Based on information in the current compact_control, find blocks * suitable for isolating free pages from and then isolate them.
@@ -206,10 +216,7 @@ static void isolate_freepages(struct zone *zone, } /* split_free_page does not map the pages */ - list_for_each_entry(page, freelist, lru) { - arch_alloc_page(page, 0); - kernel_map_pages(page, 1, 1); - } + map_pages(freelist); cc->free_pfn = high_pfn; cc->nr_freepages = nr_freepages;
--
1.7.1