Commit c9b02d97 authored Mar 22, 2006 by Wu Fengguang Committed by Linus Torvalds Mar 22, 2006

[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>

parent 7fb2d46d

mm/vmscan.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -1074,9 +1074,9 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
		{
		unsigned long nr_taken = 0;
		struct page *page;
		unsigned long scan = 0;
		unsigned long scan;

		while (scan++ < nr_to_scan && !list_empty(src)) {
		for (scan = 0; scan < nr_to_scan && !list_empty(src); scan++) {
		struct list_head *target;
		page = lru_to_page(src);
		prefetchw_prev_lru_page(page, src, flags);