From: Shakeel Butt <shakeel.butt@linux.dev>
Date: Fri, 4 Apr 2025 01:39:08 +0000 (-0700)
Subject: memcg: manually inline __refill_stock
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=cbc091441d3adce9a1fbcd0a0a84bd6abe077a5b;p=linux-2.6-microblaze.git

memcg: manually inline __refill_stock

There are no more multiple callers of __refill_stock(), so simply inline
it to refill_stock().

Link: https://lkml.kernel.org/r/20250404013913.1663035-5-shakeel.butt@linux.dev
Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index dfb3f14c1178..03a2be6d4a67 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1871,14 +1871,22 @@ static void drain_local_stock(struct work_struct *dummy)
 	obj_cgroup_put(old);
 }
 
-/*
- * Cache charges(val) to local per_cpu area.
- * This will be consumed by consume_stock() function, later.
- */
-static void __refill_stock(struct mem_cgroup *memcg, unsigned int nr_pages)
+static void refill_stock(struct mem_cgroup *memcg, unsigned int nr_pages)
 {
 	struct memcg_stock_pcp *stock;
 	unsigned int stock_pages;
+	unsigned long flags;
+
+	VM_WARN_ON_ONCE(mem_cgroup_is_root(memcg));
+
+	if (!local_trylock_irqsave(&memcg_stock.stock_lock, flags)) {
+		/*
+		 * In case of unlikely failure to lock percpu stock_lock
+		 * uncharge memcg directly.
+		 */
+		memcg_uncharge(memcg, nr_pages);
+		return;
+	}
 
 	stock = this_cpu_ptr(&memcg_stock);
 	if (READ_ONCE(stock->cached) != memcg) { /* reset if necessary */
@@ -1891,23 +1899,7 @@ static void __refill_stock(struct mem_cgroup *memcg, unsigned int nr_pages)
 
 	if (stock_pages > MEMCG_CHARGE_BATCH)
 		drain_stock(stock);
-}
-
-static void refill_stock(struct mem_cgroup *memcg, unsigned int nr_pages)
-{
-	unsigned long flags;
-
-	VM_WARN_ON_ONCE(mem_cgroup_is_root(memcg));
 
-	if (!local_trylock_irqsave(&memcg_stock.stock_lock, flags)) {
-		/*
-		 * In case of unlikely failure to lock percpu stock_lock
-		 * uncharge memcg directly.
-		 */
-		memcg_uncharge(memcg, nr_pages);
-		return;
-	}
-	__refill_stock(memcg, nr_pages);
 	local_unlock_irqrestore(&memcg_stock.stock_lock, flags);
 }