Messages in this thread Patch in this message | | | From | Joonsoo Kim <> | Subject | [PATCH 1/4] mm/migrate: correct return value of migrate_pages() | Date | Fri, 6 Dec 2013 17:41:47 +0900 |
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migrate_pages() should return number of pages not migrated or error code. When unmap_and_move return -EAGAIN, outer loop is re-execution without initialising nr_failed. This makes nr_failed over-counted.
So this patch correct it by initialising nr_failed in outer loop.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
diff --git a/mm/migrate.c b/mm/migrate.c index 3747fcd..1f59ccc 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1102,6 +1102,7 @@ int migrate_pages(struct list_head *from, new_page_t get_new_page, for(pass = 0; pass < 10 && retry; pass++) { retry = 0; + nr_failed = 0; list_for_each_entry_safe(page, page2, from, lru) { cond_resched(); -- 1.7.9.5
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