Re: [PATCH] mm: vmscan: count only dirty pages as congested

gestion, and vice versa; which is both counterintuitive and counterproductive. On Wed, Oct 15, 2014 at 1:05 PM, Andrew Morton wrote: > On Wed, 15 Oct 2014 12:58:35 -0700 Jamie Liu wrote: > >> shrink_page_list() counts all pages with a mapping, including clean >> pages, toward nr_

[PATCH] mm: vmscan: count only dirty pages as congested

they count for nr_dirty. Signed-off-by: Jamie Liu --- mm/vmscan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index dcb4707..ad9cd9f 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -875,7 +875,8 @@ static unsigned long shrink_page_list(struct list

[PATCH] swap: do not skip lowest_bit in scan_swap_map() scan loop

In the second half of scan_swap_map()'s scan loop, offset is set to si->lowest_bit and then incremented before entering the loop for the first time, causing si->swap_map[si->lowest_bit] to be skipped. Signed-off-by: Jamie Liu --- mm/swapfile.c | 3 ++- 1 file changed, 2 in

Re: [PATCH] workqueue: defer to waiting stop_machine

Hi Andreas, Just calling cond_resched() does appear to be the more general solution, and is already on tj/wq/for-next as b22ce2785d97423846206cceec4efee0c4afd980 "workqueue: cond_resched() after processing each work item". Thanks, Jamie On Thu, Aug 29, 2013 at 1:45 PM, Andreas Mohr wrote: >> Is

Re: [PATCH] workqueue: cond_resched() after processing each work item

it by invoking cond_resched() after executing each work item. > > Signed-off-by: Tejun Heo > Reported-by: Jamie Liu > References: http://thread.gmane.org/gmane.linux.kernel/1552567 > Cc: sta...@vger.kernel.org > -- > kernel/workqueue.c |9 + > 1 file changed,

[PATCH] workqueue: defer to waiting stop_machine

: Jamie Liu --- include/linux/stop_machine.h | 13 + kernel/stop_machine.c| 16 kernel/workqueue.c | 4 +++- 3 files changed, 32 insertions(+), 1 deletion(-) diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h index 3b5e910..a315f92