[PATCH v4 14/48] nfs: dynamically allocate the nfs-acl shrinker
From: Qi Zheng <hidden>
Date: 2023-08-07 11:26:09
Also in:
dm-devel, dri-devel, kvm, linux-arm-msm, linux-bcache, linux-btrfs, linux-f2fs-devel, linux-fsdevel, linux-mm, linux-nfs, linux-raid, linux-xfs, lkml, netdev, rcu, xen-devel
Subsystem:
filesystems (vfs and infrastructure), nfs, sunrpc, and lockd clients, the rest · Maintainers:
Alexander Viro, Christian Brauner, Trond Myklebust, Anna Schumaker, Linus Torvalds
Use new APIs to dynamically allocate the nfs-acl shrinker. Signed-off-by: Qi Zheng <redacted> Reviewed-by: Muchun Song <redacted> --- fs/nfs/super.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 2284f749d892..1b5cd0444dda 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 +149,19 @@ 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) { + ret = -ENOMEM; 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 +181,7 @@ 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
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2.30.2