lkml.org 
[lkml]   [2019]   [Feb]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 4/4] mm: Generalize putback scan functions
On Fri, Feb 15, 2019 at 10:01:05PM +0000, Kirill Tkhai wrote:
> On 15.02.2019 23:39, Daniel Jordan wrote:
> > On Thu, Feb 14, 2019 at 01:35:37PM +0300, Kirill Tkhai wrote:
> >> +static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
> >> + struct list_head *list)
> >> {
> >> struct pglist_data *pgdat = lruvec_pgdat(lruvec);
> >> + int nr_pages, nr_moved = 0;
> >> LIST_HEAD(pages_to_free);
> >> + struct page *page;
> >> + enum lru_list lru;
> >>
> >> - /*
> >> - * Put back any unfreeable pages.
> >> - */
> >> - while (!list_empty(page_list)) {
> >> - struct page *page = lru_to_page(page_list);
> >> - int lru;
> >> -
> >> + while (!list_empty(list)) {
> >> + page = lru_to_page(list);
> >> VM_BUG_ON_PAGE(PageLRU(page), page);
> >> - list_del(&page->lru);
> >> if (unlikely(!page_evictable(page))) {
> >> + list_del_init(&page->lru);
> >
> > Why change to list_del_init? It's more special than list_del but doesn't seem
> > needed since the page is list_add()ed later.
>
> Not something special is here, I'll remove this _init.
>
> > That postprocess script from patch 1 seems kinda broken before this series, and
> > still is. Not that it should block this change. Out of curiosity did you get
> > it to run?
>
> I fixed all new warnings, which come with my changes, so the patch does not make
> the script worse.
>
> If you change all already existing warnings by renaming variables in appropriate
> places, the script will work in some way. But I'm not sure this is enough to get
> results correct, and I have no a big wish to dive into perl to fix warnings
> introduced by another people, so I don't plan to do with this script something else.

Ok, was asking in case I was doing something wrong.

With the above change, for the series, you can add

Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>

\
 
 \ /
  Last update: 2019-02-15 23:14    [W:0.051 / U:33.684 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site