linux-kernel - [PATCH v6 41/45] mm: shrinker: rename {prealloc|unregister}_memcg_shrinker() to shrinker_memcg

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Date:   Mon, 11 Sep 2023 17:44:40 +0800
From:   Qi Zheng <zhengqi.arch@...edance.com>
To:     akpm@...ux-foundation.org, david@...morbit.com, tkhai@...ru,
        vbabka@...e.cz, roman.gushchin@...ux.dev, djwong@...nel.org,
        brauner@...nel.org, paulmck@...nel.org, tytso@....edu,
        steven.price@....com, cel@...nel.org, senozhatsky@...omium.org,
        yujie.liu@...el.com, gregkh@...uxfoundation.org,
        muchun.song@...ux.dev
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org,
        Qi Zheng <zhengqi.arch@...edance.com>
Subject: [PATCH v6 41/45] mm: shrinker: rename {prealloc|unregister}_memcg_shrinker() to shrinker_memcg_{alloc|remove}()

With the new shrinker APIs, there is no action such as prealloc, so rename
{prealloc|unregister}_memcg_shrinker() to shrinker_memcg_{alloc|remove}(),
which corresponds to the idr_{alloc|remove}() inside the function.

Signed-off-by: Qi Zheng <zhengqi.arch@...edance.com>
---
 mm/shrinker.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/mm/shrinker.c b/mm/shrinker.c
index 6723a8f4228c..0b9a43ce2d6f 100644
--- a/mm/shrinker.c
+++ b/mm/shrinker.c
@@ -209,7 +209,7 @@ void set_shrinker_bit(struct mem_cgroup *memcg, int nid, int shrinker_id)
 
 static DEFINE_IDR(shrinker_idr);
 
-static int prealloc_memcg_shrinker(struct shrinker *shrinker)
+static int shrinker_memcg_alloc(struct shrinker *shrinker)
 {
 	int id, ret = -ENOMEM;
 
@@ -235,7 +235,7 @@ static int prealloc_memcg_shrinker(struct shrinker *shrinker)
 	return ret;
 }
 
-static void unregister_memcg_shrinker(struct shrinker *shrinker)
+static void shrinker_memcg_remove(struct shrinker *shrinker)
 {
 	int id = shrinker->id;
 
@@ -297,12 +297,12 @@ void reparent_shrinker_deferred(struct mem_cgroup *memcg)
 	up_read(&shrinker_rwsem);
 }
 #else
-static int prealloc_memcg_shrinker(struct shrinker *shrinker)
+static int shrinker_memcg_alloc(struct shrinker *shrinker)
 {
 	return -ENOSYS;
 }
 
-static void unregister_memcg_shrinker(struct shrinker *shrinker)
+static void shrinker_memcg_remove(struct shrinker *shrinker)
 {
 }
 
@@ -628,7 +628,7 @@ struct shrinker *shrinker_alloc(unsigned int flags, const char *fmt, ...)
 	shrinker->seeks = DEFAULT_SEEKS;
 
 	if (flags & SHRINKER_MEMCG_AWARE) {
-		err = prealloc_memcg_shrinker(shrinker);
+		err = shrinker_memcg_alloc(shrinker);
 		if (err == -ENOSYS)
 			shrinker->flags &= ~SHRINKER_MEMCG_AWARE;
 		else if (err == 0)
@@ -696,7 +696,7 @@ void shrinker_free(struct shrinker *shrinker)
 	}
 
 	if (shrinker->flags & SHRINKER_MEMCG_AWARE)
-		unregister_memcg_shrinker(shrinker);
+		shrinker_memcg_remove(shrinker);
 	up_write(&shrinker_rwsem);
 
 	if (debugfs_entry)
-- 
2.30.2