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,
Qi Zheng <zhengqi.arch@bytedance.com>,
cluster-devel@redhat.com, linux-mm@kvack.org,
Muchun Song <songmuchun@bytedance.com>,
linux-fsdevel@vger.kernel.org
Subject: [Cluster-devel] [PATCH v6 09/45] gfs2: dynamically allocate the gfs2-qd shrinker
Date: Mon, 11 Sep 2023 17:44:08 +0800 [thread overview]
Message-ID: <20230911094444.68966-10-zhengqi.arch@bytedance.com> (raw)
In-Reply-To: <20230911094444.68966-1-zhengqi.arch@bytedance.com>
Use new APIs to dynamically allocate the gfs2-qd shrinker.
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
CC: Bob Peterson <rpeterso@redhat.com>
CC: Andreas Gruenbacher <agruenba@redhat.com>
CC: cluster-devel@redhat.com
---
fs/gfs2/main.c | 6 +++---
fs/gfs2/quota.c | 25 +++++++++++++++++++------
fs/gfs2/quota.h | 3 ++-
3 files changed, 24 insertions(+), 10 deletions(-)
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 66eb98b690a2..79be0cdc730c 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -147,7 +147,7 @@ static int __init init_gfs2_fs(void)
if (!gfs2_trans_cachep)
goto fail_cachep8;
- error = register_shrinker(&gfs2_qd_shrinker, "gfs2-qd");
+ error = gfs2_qd_shrinker_init();
if (error)
goto fail_shrinker;
@@ -196,7 +196,7 @@ static int __init init_gfs2_fs(void)
fail_wq2:
destroy_workqueue(gfs2_recovery_wq);
fail_wq1:
- unregister_shrinker(&gfs2_qd_shrinker);
+ gfs2_qd_shrinker_exit();
fail_shrinker:
kmem_cache_destroy(gfs2_trans_cachep);
fail_cachep8:
@@ -229,7 +229,7 @@ static int __init init_gfs2_fs(void)
static void __exit exit_gfs2_fs(void)
{
- unregister_shrinker(&gfs2_qd_shrinker);
+ gfs2_qd_shrinker_exit();
gfs2_glock_exit();
gfs2_unregister_debugfs();
unregister_filesystem(&gfs2_fs_type);
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 171b2713d2e5..d3d013d1d5ac 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -196,13 +196,26 @@ static unsigned long gfs2_qd_shrink_count(struct shrinker *shrink,
return vfs_pressure_ratio(list_lru_shrink_count(&gfs2_qd_lru, sc));
}
-struct shrinker gfs2_qd_shrinker = {
- .count_objects = gfs2_qd_shrink_count,
- .scan_objects = gfs2_qd_shrink_scan,
- .seeks = DEFAULT_SEEKS,
- .flags = SHRINKER_NUMA_AWARE,
-};
+static struct shrinker *gfs2_qd_shrinker;
+
+int __init gfs2_qd_shrinker_init(void)
+{
+ gfs2_qd_shrinker = shrinker_alloc(SHRINKER_NUMA_AWARE, "gfs2-qd");
+ if (!gfs2_qd_shrinker)
+ return -ENOMEM;
+
+ gfs2_qd_shrinker->count_objects = gfs2_qd_shrink_count;
+ gfs2_qd_shrinker->scan_objects = gfs2_qd_shrink_scan;
+
+ shrinker_register(gfs2_qd_shrinker);
+ return 0;
+}
+
+void gfs2_qd_shrinker_exit(void)
+{
+ shrinker_free(gfs2_qd_shrinker);
+}
static u64 qd2index(struct gfs2_quota_data *qd)
{
diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h
index 21ada332d555..f0d54dcbbc75 100644
--- a/fs/gfs2/quota.h
+++ b/fs/gfs2/quota.h
@@ -59,7 +59,8 @@ static inline int gfs2_quota_lock_check(struct gfs2_inode *ip,
}
extern const struct quotactl_ops gfs2_quotactl_ops;
-extern struct shrinker gfs2_qd_shrinker;
+int __init gfs2_qd_shrinker_init(void);
+void gfs2_qd_shrinker_exit(void);
extern struct list_lru gfs2_qd_lru;
extern void __init gfs2_quota_hash_init(void);
--
2.30.2
prev parent reply other threads:[~2023-09-11 9:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20230911094444.68966-1-zhengqi.arch@bytedance.com>
2023-09-11 9:44 ` [Cluster-devel] [PATCH v6 08/45] gfs2: dynamically allocate the gfs2-glock shrinker Qi Zheng
2023-09-11 9:44 ` Qi Zheng [this message]
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