From: Michal Hocko <mhocko@suse.com>
To: Muchun Song <songmuchun@bytedance.com>
Cc: guro@fb.com, hannes@cmpxchg.org, akpm@linux-foundation.org,
shakeelb@google.com, vdavydov.dev@gmail.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
duanxiongchun@bytedance.com, fam.zheng@bytedance.com
Subject: Re: [PATCH 7/7] mm: vmscan: remove noinline_for_stack
Date: Wed, 14 Apr 2021 11:46:08 +0200 [thread overview]
Message-ID: <YHa54ENFqoPrTbXJ@dhcp22.suse.cz> (raw)
In-Reply-To: <20210413065153.63431-8-songmuchun@bytedance.com>
On Tue 13-04-21 14:51:53, Muchun Song wrote:
> The noinline_for_stack is introduced by commit 666356297ec4 ("vmscan:
> set up pagevec as late as possible in shrink_inactive_list()"), its
> purpose is to delay the allocation of pagevec as late as possible to
> save stack memory. But the commit 2bcf88796381 ("mm: take pagevecs off
> reclaim stack") replace pagevecs by lists of pages_to_free. So we do
> not need noinline_for_stack, just remove it (let the compiler decide
> whether to inline).
>
> Signed-off-by: Muchun Song <songmuchun@bytedance.com>
> Acked-by: Johannes Weiner <hannes@cmpxchg.org>
> Acked-by: Roman Gushchin <guro@fb.com>
> Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
> ---
> mm/vmscan.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index 64bf07cc20f2..e40b21298d77 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -2015,8 +2015,8 @@ static int too_many_isolated(struct pglist_data *pgdat, int file,
> *
> * Returns the number of pages moved to the given lruvec.
> */
> -static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
> - struct list_head *list)
> +static unsigned int move_pages_to_lru(struct lruvec *lruvec,
> + struct list_head *list)
> {
> int nr_pages, nr_moved = 0;
> LIST_HEAD(pages_to_free);
> @@ -2096,7 +2096,7 @@ static int current_may_throttle(void)
> * shrink_inactive_list() is a helper for shrink_node(). It returns the number
> * of reclaimed pages
> */
> -static noinline_for_stack unsigned long
> +static unsigned long
> shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
> struct scan_control *sc, enum lru_list lru)
> {
> --
> 2.11.0
--
Michal Hocko
SUSE Labs
prev parent reply other threads:[~2021-04-14 9:46 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-13 6:51 [PATCH 0/7] memcontrol code cleanup and simplification Muchun Song
2021-04-13 6:51 ` [PATCH 1/7] mm: memcontrol: fix page charging in page replacement Muchun Song
2021-04-13 17:45 ` Roman Gushchin
2021-04-14 9:20 ` Michal Hocko
2021-04-13 6:51 ` [PATCH 2/7] mm: memcontrol: bail out early when !mm in get_mem_cgroup_from_mm Muchun Song
2021-04-13 17:47 ` Roman Gushchin
2021-04-14 9:24 ` Michal Hocko
2021-04-14 10:04 ` [External] " Muchun Song
2021-04-14 10:15 ` Michal Hocko
2021-04-15 3:13 ` Muchun Song
2021-04-15 7:09 ` Michal Hocko
2021-04-13 6:51 ` [PATCH 3/7] mm: memcontrol: remove the pgdata parameter of mem_cgroup_page_lruvec Muchun Song
2021-04-13 13:12 ` Shakeel Butt
2021-04-13 17:48 ` Roman Gushchin
2021-04-14 9:27 ` Michal Hocko
2021-04-13 6:51 ` [PATCH 4/7] mm: memcontrol: simplify lruvec_holds_page_lru_lock Muchun Song
2021-04-13 13:28 ` Shakeel Butt
2021-04-13 17:57 ` Roman Gushchin
2021-04-14 9:44 ` Michal Hocko
2021-04-14 10:00 ` [External] " Muchun Song
2021-04-14 17:49 ` Johannes Weiner
2021-04-15 7:08 ` Michal Hocko
2021-04-15 10:01 ` Muchun Song
2021-04-13 6:51 ` [PATCH 5/7] mm: memcontrol: simplify the logic of objcg pinning memcg Muchun Song
2021-04-13 14:16 ` Shakeel Butt
2021-04-13 17:51 ` Roman Gushchin
2021-04-13 6:51 ` [PATCH 6/7] mm: memcontrol: move obj_cgroup_uncharge_pages() out of css_set_lock Muchun Song
2021-04-13 14:18 ` Shakeel Butt
2021-04-13 17:54 ` Roman Gushchin
2021-04-13 18:03 ` Johannes Weiner
2021-04-13 6:51 ` [PATCH 7/7] mm: vmscan: remove noinline_for_stack Muchun Song
2021-04-14 9:46 ` Michal Hocko [this message]
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