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From:   Qi Zheng <zhengqi.arch@bytedance.com>
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        Qi Zheng <zhengqi.arch@bytedance.com>,
        Muchun Song <songmuchun@bytedance.com>
Subject: [PATCH v3 22/49] sunrpc: dynamically allocate the sunrpc_cred shrinker
Date:   Thu, 27 Jul 2023 16:04:35 +0800
Message-Id: <20230727080502.77895-23-zhengqi.arch@bytedance.com>
In-Reply-To: <20230727080502.77895-1-zhengqi.arch@bytedance.com>
References: <20230727080502.77895-1-zhengqi.arch@bytedance.com>
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Use new APIs to dynamically allocate the sunrpc_cred shrinker.

Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
---
 net/sunrpc/auth.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 2f16f9d17966..6b898b1be6f5 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -861,11 +861,7 @@ rpcauth_uptodatecred(struct rpc_task *task)
 		test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) != 0;
 }
 
-static struct shrinker rpc_cred_shrinker = {
-	.count_objects = rpcauth_cache_shrink_count,
-	.scan_objects = rpcauth_cache_shrink_scan,
-	.seeks = DEFAULT_SEEKS,
-};
+static struct shrinker *rpc_cred_shrinker;
 
 int __init rpcauth_init_module(void)
 {
@@ -874,9 +870,16 @@ int __init rpcauth_init_module(void)
 	err = rpc_init_authunix();
 	if (err < 0)
 		goto out1;
-	err = register_shrinker(&rpc_cred_shrinker, "sunrpc_cred");
-	if (err < 0)
+	rpc_cred_shrinker = shrinker_alloc(0, "sunrpc_cred");
+	if (!rpc_cred_shrinker)
 		goto out2;
+
+	rpc_cred_shrinker->count_objects = rpcauth_cache_shrink_count;
+	rpc_cred_shrinker->scan_objects = rpcauth_cache_shrink_scan;
+	rpc_cred_shrinker->seeks = DEFAULT_SEEKS;
+
+	shrinker_register(rpc_cred_shrinker);
+
 	return 0;
 out2:
 	rpc_destroy_authunix();
@@ -887,5 +890,5 @@ int __init rpcauth_init_module(void)
 void rpcauth_remove_module(void)
 {
 	rpc_destroy_authunix();
-	unregister_shrinker(&rpc_cred_shrinker);
+	shrinker_free(rpc_cred_shrinker);
 }
-- 
2.30.2