On Sun, 11 Dec 2011 22:46:24 +0800
Tao Ma <tm@xxxxxx> wrote:
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -1103,7 +1103,7 @@ int __isolate_lru_page(struct page *page, isolate_mode_t mode, int file)
> static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
> struct list_head *src, struct list_head *dst,
> unsigned long *scanned, int order, isolate_mode_t mode,
> - int file)
> + int active, int file)
> {
> unsigned long nr_taken = 0;
> unsigned long nr_lumpy_taken = 0;
> @@ -1221,7 +1221,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
> nr_to_scan, scan,
> nr_taken,
> nr_lumpy_taken, nr_lumpy_dirty, nr_lumpy_failed,
> - mode);
> + mode, active, file);
> return nr_taken;
> }
>
> @@ -1237,7 +1237,7 @@ static unsigned long isolate_pages_global(unsigned long nr,
> if (file)
> lru += LRU_FILE;
> return isolate_lru_pages(nr, &z->lru[lru].list, dst, scanned, order,
> - mode, file);
> + mode, active, file);
> }
It would be nice to avoid adding permanent runtime overhead on behalf
of tracing. It sounds like sending "mode" will satisfy this - please
check that in the v2 patch.
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