Messages in this thread Patch in this message | | | From | Wanpeng Li <> | Subject | [PATCH] mm/vmscan: cleanup on the comments of do_try_to_free_pages | Date | Fri, 15 Jun 2012 09:25:24 +0800 |
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From: Wanpeng Li <liwp@linux.vnet.ibm.com>
Since lumpy reclaim algorithm is removed by Mel Gorman, cleanup the footprint of lumpy reclaim.
Signed-off-by: Wanpeng Li <liwp.linux@gmail.com> --- mm/vmscan.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c index 603c96f..2fc16cf 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2065,8 +2065,9 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist, * Try to write back as many pages as we just scanned. This * tends to cause slow streaming writers to write data to the * disk smoothly, at the dirtying rate, which is nice. But - * that's undesirable in laptop mode, where we *want* lumpy - * writeout. So in laptop mode, write out the whole world. + * that's undesirable in laptop mode, where as much I/O as + * possible should be trigged if the disk needs to be spun up. + * So in laptop mode, write out the whole world. */ writeback_threshold = sc->nr_to_reclaim + sc->nr_to_reclaim / 2; if (total_scanned > writeback_threshold) { -- 1.7.9.5
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