From: Qi Zheng <zhengqi.arch@bytedance.com>
To: akpm@linux-foundation.org, david@fromorbit.com, tkhai@ya.ru,
vbabka@suse.cz, roman.gushchin@linux.dev, djwong@kernel.org,
brauner@kernel.org, paulmck@kernel.org, tytso@mit.edu,
steven.price@arm.com, cel@kernel.org, senozhatsky@chromium.org,
yujie.liu@intel.com, gregkh@linuxfoundation.org,
muchun.song@linux.dev
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org,
Qi Zheng <zhengqi.arch@bytedance.com>,
Muchun Song <songmuchun@bytedance.com>
Subject: [PATCH v5 39/45] mm: shrinker: remove old APIs
Date: Thu, 24 Aug 2023 11:42:58 +0800 [thread overview]
Message-ID: <20230824034304.37411-40-zhengqi.arch@bytedance.com> (raw)
In-Reply-To: <20230824034304.37411-1-zhengqi.arch@bytedance.com>
Now no users are using the old APIs, just remove them.
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
---
include/linux/shrinker.h | 8 ---
mm/shrinker.c | 143 ---------------------------------------
2 files changed, 151 deletions(-)
diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 3f3fd9974ce5..025c8070dd86 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -103,14 +103,6 @@ struct shrinker *shrinker_alloc(unsigned int flags, const char *fmt, ...);
void shrinker_register(struct shrinker *shrinker);
void shrinker_free(struct shrinker *shrinker);
-extern int __printf(2, 3) prealloc_shrinker(struct shrinker *shrinker,
- const char *fmt, ...);
-extern void register_shrinker_prepared(struct shrinker *shrinker);
-extern int __printf(2, 3) register_shrinker(struct shrinker *shrinker,
- const char *fmt, ...);
-extern void unregister_shrinker(struct shrinker *shrinker);
-extern void free_prealloced_shrinker(struct shrinker *shrinker);
-
#ifdef CONFIG_SHRINKER_DEBUG
extern int __printf(2, 3) shrinker_debugfs_rename(struct shrinker *shrinker,
const char *fmt, ...);
diff --git a/mm/shrinker.c b/mm/shrinker.c
index 36711c5c01f9..a27779ed3798 100644
--- a/mm/shrinker.c
+++ b/mm/shrinker.c
@@ -650,146 +650,3 @@ void shrinker_free(struct shrinker *shrinker)
kfree(shrinker);
}
EXPORT_SYMBOL_GPL(shrinker_free);
-
-/*
- * Add a shrinker callback to be called from the vm.
- */
-static int __prealloc_shrinker(struct shrinker *shrinker)
-{
- unsigned int size;
- int err;
-
- if (shrinker->flags & SHRINKER_MEMCG_AWARE) {
- err = prealloc_memcg_shrinker(shrinker);
- if (err != -ENOSYS)
- return err;
-
- shrinker->flags &= ~SHRINKER_MEMCG_AWARE;
- }
-
- size = sizeof(*shrinker->nr_deferred);
- if (shrinker->flags & SHRINKER_NUMA_AWARE)
- size *= nr_node_ids;
-
- shrinker->nr_deferred = kzalloc(size, GFP_KERNEL);
- if (!shrinker->nr_deferred)
- return -ENOMEM;
-
- return 0;
-}
-
-#ifdef CONFIG_SHRINKER_DEBUG
-int prealloc_shrinker(struct shrinker *shrinker, const char *fmt, ...)
-{
- va_list ap;
- int err;
-
- va_start(ap, fmt);
- shrinker->name = kvasprintf_const(GFP_KERNEL, fmt, ap);
- va_end(ap);
- if (!shrinker->name)
- return -ENOMEM;
-
- err = __prealloc_shrinker(shrinker);
- if (err) {
- kfree_const(shrinker->name);
- shrinker->name = NULL;
- }
-
- return err;
-}
-#else
-int prealloc_shrinker(struct shrinker *shrinker, const char *fmt, ...)
-{
- return __prealloc_shrinker(shrinker);
-}
-#endif
-
-void free_prealloced_shrinker(struct shrinker *shrinker)
-{
-#ifdef CONFIG_SHRINKER_DEBUG
- kfree_const(shrinker->name);
- shrinker->name = NULL;
-#endif
- if (shrinker->flags & SHRINKER_MEMCG_AWARE) {
- down_write(&shrinker_rwsem);
- unregister_memcg_shrinker(shrinker);
- up_write(&shrinker_rwsem);
- return;
- }
-
- kfree(shrinker->nr_deferred);
- shrinker->nr_deferred = NULL;
-}
-
-void register_shrinker_prepared(struct shrinker *shrinker)
-{
- down_write(&shrinker_rwsem);
- list_add_tail(&shrinker->list, &shrinker_list);
- shrinker->flags |= SHRINKER_REGISTERED;
- shrinker_debugfs_add(shrinker);
- up_write(&shrinker_rwsem);
-}
-
-static int __register_shrinker(struct shrinker *shrinker)
-{
- int err = __prealloc_shrinker(shrinker);
-
- if (err)
- return err;
- register_shrinker_prepared(shrinker);
- return 0;
-}
-
-#ifdef CONFIG_SHRINKER_DEBUG
-int register_shrinker(struct shrinker *shrinker, const char *fmt, ...)
-{
- va_list ap;
- int err;
-
- va_start(ap, fmt);
- shrinker->name = kvasprintf_const(GFP_KERNEL, fmt, ap);
- va_end(ap);
- if (!shrinker->name)
- return -ENOMEM;
-
- err = __register_shrinker(shrinker);
- if (err) {
- kfree_const(shrinker->name);
- shrinker->name = NULL;
- }
- return err;
-}
-#else
-int register_shrinker(struct shrinker *shrinker, const char *fmt, ...)
-{
- return __register_shrinker(shrinker);
-}
-#endif
-EXPORT_SYMBOL(register_shrinker);
-
-/*
- * Remove one
- */
-void unregister_shrinker(struct shrinker *shrinker)
-{
- struct dentry *debugfs_entry;
- int debugfs_id;
-
- if (!(shrinker->flags & SHRINKER_REGISTERED))
- return;
-
- down_write(&shrinker_rwsem);
- list_del(&shrinker->list);
- shrinker->flags &= ~SHRINKER_REGISTERED;
- if (shrinker->flags & SHRINKER_MEMCG_AWARE)
- unregister_memcg_shrinker(shrinker);
- debugfs_entry = shrinker_debugfs_detach(shrinker, &debugfs_id);
- up_write(&shrinker_rwsem);
-
- shrinker_debugfs_remove(debugfs_entry, debugfs_id);
-
- kfree(shrinker->nr_deferred);
- shrinker->nr_deferred = NULL;
-}
-EXPORT_SYMBOL(unregister_shrinker);
--
2.30.2
next prev parent reply other threads:[~2023-08-24 3:49 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-24 3:42 [PATCH v5 00/45] use refcount+RCU method to implement lockless slab shrink Qi Zheng
2023-08-24 3:42 ` [PATCH v5 01/45] mm: shrinker: add infrastructure for dynamically allocating shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 02/45] kvm: mmu: dynamically allocate the x86-mmu shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 03/45] binder: dynamically allocate the android-binder shrinker Qi Zheng
2023-08-31 16:41 ` Carlos Llamas
2023-08-24 3:42 ` [PATCH v5 04/45] drm/ttm: dynamically allocate the drm-ttm_pool shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 05/45] xenbus/backend: dynamically allocate the xen-backend shrinker Qi Zheng
2023-08-24 6:00 ` Juergen Gross
2023-08-24 6:24 ` Qi Zheng
2023-08-24 3:42 ` [PATCH v5 06/45] erofs: dynamically allocate the erofs-shrinker Qi Zheng
2023-08-25 1:18 ` Chao Yu
2023-08-25 2:54 ` Gao Xiang
2023-08-24 3:42 ` [PATCH v5 07/45] f2fs: dynamically allocate the f2fs-shrinker Qi Zheng
2023-08-25 1:17 ` Chao Yu
2023-08-24 3:42 ` [PATCH v5 08/45] gfs2: dynamically allocate the gfs2-glock shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 09/45] gfs2: dynamically allocate the gfs2-qd shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 10/45] NFSv4.2: dynamically allocate the nfs-xattr shrinkers Qi Zheng
2023-08-24 3:42 ` [PATCH v5 11/45] nfs: dynamically allocate the nfs-acl shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 12/45] nfsd: dynamically allocate the nfsd-filecache shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 13/45] quota: dynamically allocate the dquota-cache shrinker Qi Zheng
2023-08-24 9:51 ` Jan Kara
2023-08-24 3:42 ` [PATCH v5 14/45] ubifs: dynamically allocate the ubifs-slab shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 15/45] rcu: dynamically allocate the rcu-lazy shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 16/45] rcu: dynamically allocate the rcu-kfree shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 17/45] mm: thp: dynamically allocate the thp-related shrinkers Qi Zheng
2023-08-24 3:42 ` [PATCH v5 18/45] sunrpc: dynamically allocate the sunrpc_cred shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 19/45] mm: workingset: dynamically allocate the mm-shadow shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 20/45] drm/i915: dynamically allocate the i915_gem_mm shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 21/45] drm/msm: dynamically allocate the drm-msm_gem shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 22/45] drm/panfrost: dynamically allocate the drm-panfrost shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 23/45] dm: dynamically allocate the dm-bufio shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 24/45] dm zoned: dynamically allocate the dm-zoned-meta shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 25/45] md/raid5: dynamically allocate the md-raid5 shrinker Qi Zheng
2023-08-24 3:55 ` Song Liu
2023-08-24 3:42 ` [PATCH v5 26/45] bcache: dynamically allocate the md-bcache shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 27/45] vmw_balloon: dynamically allocate the vmw-balloon shrinker Qi Zheng
2023-08-24 15:28 ` Nadav Amit
2023-08-25 2:27 ` Qi Zheng
2023-08-24 3:42 ` [PATCH v5 28/45] virtio_balloon: dynamically allocate the virtio-balloon shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 29/45] mbcache: dynamically allocate the mbcache shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 30/45] ext4: dynamically allocate the ext4-es shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 31/45] jbd2,ext4: dynamically allocate the jbd2-journal shrinker Qi Zheng
2023-08-24 9:49 ` Jan Kara
2023-08-24 3:42 ` [PATCH v5 32/45] nfsd: dynamically allocate the nfsd-client shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 33/45] nfsd: dynamically allocate the nfsd-reply shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 34/45] xfs: dynamically allocate the xfs-buf shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 35/45] xfs: dynamically allocate the xfs-inodegc shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 36/45] xfs: dynamically allocate the xfs-qm shrinker Qi Zheng
2023-08-24 3:42 ` [PATCH v5 37/45] zsmalloc: dynamically allocate the mm-zspool shrinker Qi Zheng
2023-08-24 4:38 ` Sergey Senozhatsky
2023-08-24 3:42 ` [PATCH v5 38/45] fs: super: dynamically allocate the s_shrink Qi Zheng
2023-08-24 3:42 ` Qi Zheng [this message]
2023-08-24 3:42 ` [PATCH v5 40/45] mm: shrinker: add a secondary array for shrinker_info::{map, nr_deferred} Qi Zheng
2023-08-24 3:43 ` [PATCH v5 41/45] mm: shrinker: rename {prealloc|unregister}_memcg_shrinker() to shrinker_memcg_{alloc|remove}() Qi Zheng
2023-08-24 3:43 ` [PATCH v5 42/45] mm: shrinker: make global slab shrink lockless Qi Zheng
2023-08-24 3:43 ` [PATCH v5 43/45] mm: shrinker: make memcg " Qi Zheng
2023-08-24 3:43 ` [PATCH v5 44/45] mm: shrinker: hold write lock to reparent shrinker nr_deferred Qi Zheng
2023-08-24 3:43 ` [PATCH v5 45/45] mm: shrinker: convert shrinker_rwsem to mutex Qi Zheng
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