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[PATCH] mm: isolate_lru_pages() scan count fix
In isolate_lru_pages(), *scanned reports one more scan because the scan counter is increased one more time on exit of the while-loop. Change the while-loop to for-loop to fix it. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Wu Fengguang <wfg@mail.ustc.edu.cn> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -1074,9 +1074,9 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
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{
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unsigned long nr_taken = 0;
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struct page *page;
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unsigned long scan = 0;
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unsigned long scan;
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while (scan++ < nr_to_scan && !list_empty(src)) {
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for (scan = 0; scan < nr_to_scan && !list_empty(src); scan++) {
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struct list_head *target;
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page = lru_to_page(src);
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prefetchw_prev_lru_page(page, src, flags);
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