From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: linux-mm@kvack.org, akpm@linux-foundation.org
Cc: Yu Zhao <yuzhao@google.com>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Subject: [PATCH v2 3/5] mm/mglru: Move code around to make future patch easy
Date: Thu, 6 Jul 2023 11:50:42 +0530 [thread overview]
Message-ID: <20230706062044.816068-4-aneesh.kumar@linux.ibm.com> (raw)
In-Reply-To: <20230706062044.816068-1-aneesh.kumar@linux.ibm.com>
No functional change in this patch.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
---
mm/vmscan.c | 64 ++++++++++++++++++++++++++---------------------------
1 file changed, 32 insertions(+), 32 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c5fbc3babcd8..a846a62df0ba 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3556,6 +3556,38 @@ static void reset_batch_size(struct lruvec *lruvec, struct lru_gen_mm_walk *walk
}
}
+static struct lru_gen_mm_walk *set_mm_walk(struct pglist_data *pgdat, bool force_alloc)
+{
+ struct lru_gen_mm_walk *walk = current->reclaim_state->mm_walk;
+
+ if (pgdat && current_is_kswapd()) {
+ VM_WARN_ON_ONCE(walk);
+
+ walk = &pgdat->mm_walk;
+ } else if (!walk && force_alloc) {
+ VM_WARN_ON_ONCE(current_is_kswapd());
+
+ walk = kzalloc(sizeof(*walk), __GFP_HIGH | __GFP_NOMEMALLOC | __GFP_NOWARN);
+ }
+
+ current->reclaim_state->mm_walk = walk;
+
+ return walk;
+}
+
+static void clear_mm_walk(void)
+{
+ struct lru_gen_mm_walk *walk = current->reclaim_state->mm_walk;
+
+ VM_WARN_ON_ONCE(walk && memchr_inv(walk->nr_pages, 0, sizeof(walk->nr_pages)));
+ VM_WARN_ON_ONCE(walk && memchr_inv(walk->mm_stats, 0, sizeof(walk->mm_stats)));
+
+ current->reclaim_state->mm_walk = NULL;
+
+ if (!current_is_kswapd())
+ kfree(walk);
+}
+
/******************************************************************************
* Bloom filters
******************************************************************************/
@@ -4324,38 +4356,6 @@ static void walk_mm(struct lruvec *lruvec, struct mm_struct *mm, struct lru_gen_
} while (err == -EAGAIN);
}
-static struct lru_gen_mm_walk *set_mm_walk(struct pglist_data *pgdat, bool force_alloc)
-{
- struct lru_gen_mm_walk *walk = current->reclaim_state->mm_walk;
-
- if (pgdat && current_is_kswapd()) {
- VM_WARN_ON_ONCE(walk);
-
- walk = &pgdat->mm_walk;
- } else if (!walk && force_alloc) {
- VM_WARN_ON_ONCE(current_is_kswapd());
-
- walk = kzalloc(sizeof(*walk), __GFP_HIGH | __GFP_NOMEMALLOC | __GFP_NOWARN);
- }
-
- current->reclaim_state->mm_walk = walk;
-
- return walk;
-}
-
-static void clear_mm_walk(void)
-{
- struct lru_gen_mm_walk *walk = current->reclaim_state->mm_walk;
-
- VM_WARN_ON_ONCE(walk && memchr_inv(walk->nr_pages, 0, sizeof(walk->nr_pages)));
- VM_WARN_ON_ONCE(walk && memchr_inv(walk->mm_stats, 0, sizeof(walk->mm_stats)));
-
- current->reclaim_state->mm_walk = NULL;
-
- if (!current_is_kswapd())
- kfree(walk);
-}
-
static bool inc_min_seq(struct lruvec *lruvec, int type, bool can_swap)
{
int zone;
--
2.41.0
next prev parent reply other threads:[~2023-07-06 6:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-06 6:20 [PATCH v2 0/5] Avoid building lrugen page table walk code Aneesh Kumar K.V
2023-07-06 6:20 ` [PATCH v2 1/5] mm/mglru: Create a new helper iterate_mm_list_walk Aneesh Kumar K.V
2023-07-06 6:20 ` [PATCH v2 2/5] mm/mglru: Move Bloom filter code around Aneesh Kumar K.V
2023-07-06 6:20 ` Aneesh Kumar K.V [this message]
2023-07-06 6:20 ` [PATCH v2 4/5] mm/mglru: move iterate_mm_list_walk Helper Aneesh Kumar K.V
2023-07-06 6:20 ` [PATCH v2 5/5] mm/mglru: Don't build multi-gen LRU page table walk code on architecture not supported Aneesh Kumar K.V
2023-07-07 7:57 ` [PATCH v2 0/5] Avoid building lrugen page table walk code Yu Zhao
2023-07-07 13:24 ` Aneesh Kumar K V
2023-07-08 2:06 ` Yu Zhao
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