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[PATCH] mm: isolate_lru_pages() scan count fix

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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 <[email protected]>
Signed-off-by: Wu Fengguang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Wu Fengguang 2006-03-22 00:08:23 -08:00 • committed by Linus Torvalds
commit c9b02d970c
1 changed files with 2 additions and 2 deletions
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4
mm/vmscan.c
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@ -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);