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mm/mglru: rename variables related to aging and rotation

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The current variable name isn't helpful.  Make the variable names more
meaningful.

Only naming change, no behavior change.

Link: https://lore.kernel.org/20260428-mglru-reclaim-v7-2-02fabb92dc43@tencent.com
Signed-off-by: Kairui Song <kasong@tencent.com>
Suggested-by: Barry Song <baohua@kernel.org>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Chen Ridong <chenridong@huaweicloud.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Reviewed-by: Axel Rasmussen <axelrasmussen@google.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Chris Li <chrisl@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: David Stevens <stevensd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Leno Hou <lenohou@gmail.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vernon Yang <vernon2gm@gmail.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Yafang <laoar.shao@gmail.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kairui Song 2026-04-28 02:06:53 +08:00 committed by Andrew Morton
parent 0491e9f75c
commit 790d3abeca
1 changed files with 7 additions and 7 deletions
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14
mm/vmscan.c
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@ -4938,7 +4938,7 @@ static bool should_run_aging(struct lruvec *lruvec, unsigned long max_seq,
*/
static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, int swappiness)
{
bool success;
bool need_aging;
unsigned long nr_to_scan;
struct mem_cgroup *memcg = lruvec_memcg(lruvec);
DEFINE_MAX_SEQ(lruvec);
@ -4946,7 +4946,7 @@ static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, int s
if (mem_cgroup_below_min(sc->target_mem_cgroup, memcg))
return -1;
success = should_run_aging(lruvec, max_seq, swappiness, &nr_to_scan);
need_aging = should_run_aging(lruvec, max_seq, swappiness, &nr_to_scan);
/* try to scrape all its memory if this memcg was deleted */
if (nr_to_scan && !mem_cgroup_online(memcg))
@ -4955,7 +4955,7 @@ static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, int s
nr_to_scan = apply_proportional_protection(memcg, sc, nr_to_scan);
/* try to get away with not aging at the default priority */
if (!success || sc->priority == DEF_PRIORITY)
if (!need_aging || sc->priority == DEF_PRIORITY)
return nr_to_scan >> sc->priority;
/* stop scanning this lruvec as it's low on cold folios */
@ -5044,7 +5044,7 @@ static bool try_to_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
static int shrink_one(struct lruvec *lruvec, struct scan_control *sc)
{
bool success;
bool need_rotate;
unsigned long scanned = sc->nr_scanned;
unsigned long reclaimed = sc->nr_reclaimed;
struct mem_cgroup *memcg = lruvec_memcg(lruvec);
@ -5062,7 +5062,7 @@ static int shrink_one(struct lruvec *lruvec, struct scan_control *sc)
memcg_memory_event(memcg, MEMCG_LOW);
}
success = try_to_shrink_lruvec(lruvec, sc);
need_rotate = try_to_shrink_lruvec(lruvec, sc);
shrink_slab(sc->gfp_mask, pgdat->node_id, memcg, sc->priority);
@ -5072,10 +5072,10 @@ static int shrink_one(struct lruvec *lruvec, struct scan_control *sc)
flush_reclaim_state(sc);
if (success && mem_cgroup_online(memcg))
if (need_rotate && mem_cgroup_online(memcg))
return MEMCG_LRU_YOUNG;
if (!success && lruvec_is_sizable(lruvec, sc))
if (!need_rotate && lruvec_is_sizable(lruvec, sc))
return 0;
/* one retry if offlined or too small */