linux-kernel - [PATCH v1 05/14] mm: memcg: rename charge move-related functions

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Date: Tue, 28 May 2024 13:20:57 -0700
From: Roman Gushchin <roman.gushchin@...ux.dev>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Muchun Song <muchun.song@...ux.dev>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>,
	Shakeel Butt <shakeel.butt@...ux.dev>,
	Matthew Wilcox <willy@...radead.org>,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Roman Gushchin <roman.gushchin@...ux.dev>
Subject: [PATCH v1 05/14] mm: memcg: rename charge move-related functions

Rename exported function related to the charge move to have
the memcg1_ prefix.

Signed-off-by: Roman Gushchin <roman.gushchin@...ux.dev>
---
 mm/memcontrol-v1.c | 8 ++++----
 mm/memcontrol-v1.h | 8 ++++----
 mm/memcontrol.c    | 8 ++++----
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/mm/memcontrol-v1.c b/mm/memcontrol-v1.c
index f4c8bec5ae1b8..f3ea01a17eea9 100644
--- a/mm/memcontrol-v1.c
+++ b/mm/memcontrol-v1.c
@@ -384,7 +384,7 @@ static bool mem_cgroup_under_move(struct mem_cgroup *memcg)
 	return ret;
 }
 
-bool mem_cgroup_wait_acct_move(struct mem_cgroup *memcg)
+bool memcg1_wait_acct_move(struct mem_cgroup *memcg)
 {
 	if (mc.moving_task && current != mc.moving_task) {
 		if (mem_cgroup_under_move(memcg)) {
@@ -1056,7 +1056,7 @@ static void mem_cgroup_clear_mc(void)
 	mmput(mm);
 }
 
-int mem_cgroup_can_attach(struct cgroup_taskset *tset)
+int memcg1_can_attach(struct cgroup_taskset *tset)
 {
 	struct cgroup_subsys_state *css;
 	struct mem_cgroup *memcg = NULL; /* unneeded init to make gcc happy */
@@ -1126,7 +1126,7 @@ int mem_cgroup_can_attach(struct cgroup_taskset *tset)
 	return ret;
 }
 
-void mem_cgroup_cancel_attach(struct cgroup_taskset *tset)
+void memcg1_cancel_attach(struct cgroup_taskset *tset)
 {
 	if (mc.to)
 		mem_cgroup_clear_mc();
@@ -1285,7 +1285,7 @@ static void mem_cgroup_move_charge(void)
 	atomic_dec(&mc.from->moving_account);
 }
 
-void mem_cgroup_move_task(void)
+void memcg1_move_task(void)
 {
 	if (mc.to) {
 		mem_cgroup_move_charge();
diff --git a/mm/memcontrol-v1.h b/mm/memcontrol-v1.h
index 55e7c4f90c399..d377c0be9880b 100644
--- a/mm/memcontrol-v1.h
+++ b/mm/memcontrol-v1.h
@@ -29,11 +29,11 @@ static inline int try_charge(struct mem_cgroup *memcg, gfp_t gfp_mask,
 void mem_cgroup_id_get_many(struct mem_cgroup *memcg, unsigned int n);
 void mem_cgroup_id_put_many(struct mem_cgroup *memcg, unsigned int n);
 
-bool mem_cgroup_wait_acct_move(struct mem_cgroup *memcg);
+bool memcg1_wait_acct_move(struct mem_cgroup *memcg);
 struct cgroup_taskset;
-int mem_cgroup_can_attach(struct cgroup_taskset *tset);
-void mem_cgroup_cancel_attach(struct cgroup_taskset *tset);
-void mem_cgroup_move_task(void);
+int memcg1_can_attach(struct cgroup_taskset *tset);
+void memcg1_cancel_attach(struct cgroup_taskset *tset);
+void memcg1_move_task(void);
 
 struct cftype;
 u64 mem_cgroup_move_charge_read(struct cgroup_subsys_state *css,
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ba538ab0a80ad..b983cb6d1d228 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2582,7 +2582,7 @@ int try_charge_memcg(struct mem_cgroup *memcg, gfp_t gfp_mask,
 	 * At task move, charge accounts can be doubly counted. So, it's
 	 * better to wait until the end of task_move if something is going on.
 	 */
-	if (mem_cgroup_wait_acct_move(mem_over_limit))
+	if (memcg1_wait_acct_move(mem_over_limit))
 		goto retry;
 
 	if (nr_retries--)
@@ -6032,12 +6032,12 @@ struct cgroup_subsys memory_cgrp_subsys = {
 	.css_free = mem_cgroup_css_free,
 	.css_reset = mem_cgroup_css_reset,
 	.css_rstat_flush = mem_cgroup_css_rstat_flush,
-	.can_attach = mem_cgroup_can_attach,
+	.can_attach = memcg1_can_attach,
 #if defined(CONFIG_LRU_GEN) || defined(CONFIG_MEMCG_KMEM)
 	.attach = mem_cgroup_attach,
 #endif
-	.cancel_attach = mem_cgroup_cancel_attach,
-	.post_attach = mem_cgroup_move_task,
+	.cancel_attach = memcg1_cancel_attach,
+	.post_attach = memcg1_move_task,
 #ifdef CONFIG_MEMCG_KMEM
 	.fork = mem_cgroup_fork,
 	.exit = mem_cgroup_exit,
-- 
2.45.1