diff mbox series

[v3,15/49] nfs: dynamically allocate the nfs-acl shrinker

Message ID 20230727080502.77895-16-zhengqi.arch@bytedance.com (mailing list archive)
State Superseded
Headers show
Series use refcount+RCU method to implement lockless slab shrink | expand

Commit Message

Qi Zheng July 27, 2023, 8:04 a.m. UTC 
Use new APIs to dynamically allocate the nfs-acl shrinker.

Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
---
 fs/nfs/super.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

Comments

Qi Zheng July 27, 2023, 9:06 a.m. UTC | #1 
On 2023/7/27 16:04, Qi Zheng wrote:
> Use new APIs to dynamically allocate the nfs-acl shrinker.
> 
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
> Reviewed-by: Muchun Song <songmuchun@bytedance.com>
> ---
>   fs/nfs/super.c | 20 ++++++++++++--------
>   1 file changed, 12 insertions(+), 8 deletions(-)
> 
> diff --git a/fs/nfs/super.c b/fs/nfs/super.c
> index 2284f749d892..072d82e1be06 100644
> --- a/fs/nfs/super.c
> +++ b/fs/nfs/super.c
> @@ -129,11 +129,7 @@ static void nfs_ssc_unregister_ops(void)
>   }
>   #endif /* CONFIG_NFS_V4_2 */
>   
> -static struct shrinker acl_shrinker = {
> -	.count_objects	= nfs_access_cache_count,
> -	.scan_objects	= nfs_access_cache_scan,
> -	.seeks		= DEFAULT_SEEKS,
> -};
> +static struct shrinker *acl_shrinker;
>   
>   /*
>    * Register the NFS filesystems
> @@ -153,9 +149,17 @@ int __init register_nfs_fs(void)
>   	ret = nfs_register_sysctl();
>   	if (ret < 0)
>   		goto error_2;
> -	ret = register_shrinker(&acl_shrinker, "nfs-acl");
> -	if (ret < 0)
> +
> +	acl_shrinker = shrinker_alloc(0, "nfs-acl");
> +	if (!acl_shrinker)
>   		goto error_3;

Here should set ret to -ENOMEM, will fix.

> +
> +	acl_shrinker->count_objects = nfs_access_cache_count;
> +	acl_shrinker->scan_objects = nfs_access_cache_scan;
> +	acl_shrinker->seeks = DEFAULT_SEEKS;
> +
> +	shrinker_register(acl_shrinker);
> +
>   #ifdef CONFIG_NFS_V4_2
>   	nfs_ssc_register_ops();
>   #endif
> @@ -175,7 +179,7 @@ int __init register_nfs_fs(void)
>    */
>   void __exit unregister_nfs_fs(void)
>   {
> -	unregister_shrinker(&acl_shrinker);
> +	shrinker_free(acl_shrinker);
>   	nfs_unregister_sysctl();
>   	unregister_nfs4_fs();
>   #ifdef CONFIG_NFS_V4_2
diff mbox series

Patch

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 2284f749d892..072d82e1be06 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -129,11 +129,7 @@  static void nfs_ssc_unregister_ops(void)
 }
 #endif /* CONFIG_NFS_V4_2 */
 
-static struct shrinker acl_shrinker = {
-	.count_objects	= nfs_access_cache_count,
-	.scan_objects	= nfs_access_cache_scan,
-	.seeks		= DEFAULT_SEEKS,
-};
+static struct shrinker *acl_shrinker;
 
 /*
  * Register the NFS filesystems
@@ -153,9 +149,17 @@  int __init register_nfs_fs(void)
 	ret = nfs_register_sysctl();
 	if (ret < 0)
 		goto error_2;
-	ret = register_shrinker(&acl_shrinker, "nfs-acl");
-	if (ret < 0)
+
+	acl_shrinker = shrinker_alloc(0, "nfs-acl");
+	if (!acl_shrinker)
 		goto error_3;
+
+	acl_shrinker->count_objects = nfs_access_cache_count;
+	acl_shrinker->scan_objects = nfs_access_cache_scan;
+	acl_shrinker->seeks = DEFAULT_SEEKS;
+
+	shrinker_register(acl_shrinker);
+
 #ifdef CONFIG_NFS_V4_2
 	nfs_ssc_register_ops();
 #endif
@@ -175,7 +179,7 @@  int __init register_nfs_fs(void)
  */
 void __exit unregister_nfs_fs(void)
 {
-	unregister_shrinker(&acl_shrinker);
+	shrinker_free(acl_shrinker);
 	nfs_unregister_sysctl();
 	unregister_nfs4_fs();
 #ifdef CONFIG_NFS_V4_2