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V" , Kinsey Ho Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" struct lruvec* is already a field of struct lru_gen_mm_walk. Remove the parameter struct lruvec* into functions that already have access to struct lru_gen_mm_walk*. Also, we do not need to handle reset histogram stats when !should_walk_mmu(). Remove the call to reset_mm_stats() in iterate_mm_list_nowalk(). Signed-off-by: Kinsey Ho --- mm/vmscan.c | 42 ++++++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 20 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 87de39e7410b..8c77c332a67a 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2897,38 +2897,37 @@ static struct mm_struct *get_next_mm(struct lru_gen= _mm_walk *walk) =20 #endif =20 -static void reset_mm_stats(struct lruvec *lruvec, struct lru_gen_mm_walk *= walk, bool last) +static void reset_mm_stats(struct lru_gen_mm_walk *walk, bool last) { int i; int hist; + struct lruvec *lruvec =3D walk->lruvec; struct lru_gen_mm_state *mm_state =3D get_mm_state(lruvec); =20 lockdep_assert_held(&get_mm_list(lruvec_memcg(lruvec))->lock); =20 - if (walk) { - hist =3D lru_hist_from_seq(walk->max_seq); + hist =3D lru_hist_from_seq(walk->max_seq); =20 - for (i =3D 0; i < NR_MM_STATS; i++) { - WRITE_ONCE(mm_state->stats[hist][i], - mm_state->stats[hist][i] + walk->mm_stats[i]); - walk->mm_stats[i] =3D 0; - } + for (i =3D 0; i < NR_MM_STATS; i++) { + WRITE_ONCE(mm_state->stats[hist][i], + mm_state->stats[hist][i] + walk->mm_stats[i]); + walk->mm_stats[i] =3D 0; } =20 if (NR_HIST_GENS > 1 && last) { - hist =3D lru_hist_from_seq(mm_state->seq + 1); + hist =3D lru_hist_from_seq(walk->max_seq + 1); =20 for (i =3D 0; i < NR_MM_STATS; i++) WRITE_ONCE(mm_state->stats[hist][i], 0); } } =20 -static bool iterate_mm_list(struct lruvec *lruvec, struct lru_gen_mm_walk = *walk, - struct mm_struct **iter) +static bool iterate_mm_list(struct lru_gen_mm_walk *walk, struct mm_struct= **iter) { bool first =3D false; bool last =3D false; struct mm_struct *mm =3D NULL; + struct lruvec *lruvec =3D walk->lruvec; struct mem_cgroup *memcg =3D lruvec_memcg(lruvec); struct lru_gen_mm_list *mm_list =3D get_mm_list(memcg); struct lru_gen_mm_state *mm_state =3D get_mm_state(lruvec); @@ -2972,7 +2971,7 @@ static bool iterate_mm_list(struct lruvec *lruvec, st= ruct lru_gen_mm_walk *walk, } while (!(mm =3D get_next_mm(walk))); done: if (*iter || last) - reset_mm_stats(lruvec, walk, last); + reset_mm_stats(walk, last); =20 spin_unlock(&mm_list->lock); =20 @@ -3002,7 +3001,6 @@ static bool iterate_mm_list_nowalk(struct lruvec *lru= vec, unsigned long max_seq) mm_state->head =3D NULL; mm_state->tail =3D NULL; WRITE_ONCE(mm_state->seq, mm_state->seq + 1); - reset_mm_stats(lruvec, NULL, true); success =3D true; } =20 @@ -3177,9 +3175,10 @@ static void update_batch_size(struct lru_gen_mm_walk= *walk, struct folio *folio, walk->nr_pages[new_gen][type][zone] +=3D delta; } =20 -static void reset_batch_size(struct lruvec *lruvec, struct lru_gen_mm_walk= *walk) +static void reset_batch_size(struct lru_gen_mm_walk *walk) { int gen, type, zone; + struct lruvec *lruvec =3D walk->lruvec; struct lru_gen_folio *lrugen =3D &lruvec->lrugen; =20 walk->batched =3D 0; @@ -3609,7 +3608,7 @@ static int walk_pud_range(p4d_t *p4d, unsigned long s= tart, unsigned long end, return -EAGAIN; } =20 -static void walk_mm(struct lruvec *lruvec, struct mm_struct *mm, struct lr= u_gen_mm_walk *walk) +static void walk_mm(struct mm_struct *mm, struct lru_gen_mm_walk *walk) { static const struct mm_walk_ops mm_walk_ops =3D { .test_walk =3D should_skip_vma, @@ -3618,6 +3617,7 @@ static void walk_mm(struct lruvec *lruvec, struct mm_= struct *mm, struct lru_gen_ }; =20 int err; + struct lruvec *lruvec =3D walk->lruvec; struct mem_cgroup *memcg =3D lruvec_memcg(lruvec); =20 walk->next_addr =3D FIRST_USER_ADDRESS; @@ -3646,7 +3646,7 @@ static void walk_mm(struct lruvec *lruvec, struct mm_= struct *mm, struct lru_gen_ =20 if (walk->batched) { spin_lock_irq(&lruvec->lru_lock); - reset_batch_size(lruvec, walk); + reset_batch_size(walk); spin_unlock_irq(&lruvec->lru_lock); } =20 @@ -3874,9 +3874,9 @@ static bool try_to_inc_max_seq(struct lruvec *lruvec,= unsigned long max_seq, walk->force_scan =3D force_scan; =20 do { - success =3D iterate_mm_list(lruvec, walk, &mm); + success =3D iterate_mm_list(walk, &mm); if (mm) - walk_mm(lruvec, mm, walk); + walk_mm(mm, walk); } while (mm); done: if (success) { @@ -4576,8 +4576,10 @@ static int evict_folios(struct lruvec *lruvec, struc= t scan_control *sc, int swap move_folios_to_lru(lruvec, &list); =20 walk =3D current->reclaim_state->mm_walk; - if (walk && walk->batched) - reset_batch_size(lruvec, walk); + if (walk && walk->batched) { + walk->lruvec =3D lruvec; + reset_batch_size(walk); + } =20 item =3D PGSTEAL_KSWAPD + reclaimer_offset(); if (!cgroup_reclaim(sc)) --=20 2.43.0.687.g38aa6559b0-goog