diff mbox series

[v2,10/47] gfs2: dynamically allocate the gfs2-glock shrinker

Message ID 20230724094354.90817-11-zhengqi.arch@bytedance.com (mailing list archive)
State New
Headers show
Series use refcount+RCU method to implement lockless slab shrink | expand

Commit Message

Qi Zheng July 24, 2023, 9:43 a.m. UTC 
Use new APIs to dynamically allocate the gfs2-glock shrinker.

Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
---
 fs/gfs2/glock.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

Comments

Muchun Song July 26, 2023, 6:43 a.m. UTC | #1 
> On Jul 24, 2023, at 17:43, Qi Zheng <zhengqi.arch@bytedance.com> wrote:
> 
> Use new APIs to dynamically allocate the gfs2-glock shrinker.
> 
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>

Reviewed-by: Muchun Song <songmuchun@bytedance.com>

Thanks.
diff mbox series

Patch

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 1438e7465e30..77da354667d9 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -2046,11 +2046,7 @@  static unsigned long gfs2_glock_shrink_count(struct shrinker *shrink,
 	return vfs_pressure_ratio(atomic_read(&lru_count));
 }
 
-static struct shrinker glock_shrinker = {
-	.seeks = DEFAULT_SEEKS,
-	.count_objects = gfs2_glock_shrink_count,
-	.scan_objects = gfs2_glock_shrink_scan,
-};
+static struct shrinker *glock_shrinker;
 
 /**
  * glock_hash_walk - Call a function for glock in a hash bucket
@@ -2472,13 +2468,19 @@  int __init gfs2_glock_init(void)
 		return -ENOMEM;
 	}
 
-	ret = register_shrinker(&glock_shrinker, "gfs2-glock");
-	if (ret) {
+	glock_shrinker = shrinker_alloc(0, "gfs2-glock");
+	if (!glock_shrinker) {
 		destroy_workqueue(glock_workqueue);
 		rhashtable_destroy(&gl_hash_table);
-		return ret;
+		return -ENOMEM;
 	}
 
+	glock_shrinker->count_objects = gfs2_glock_shrink_count;
+	glock_shrinker->scan_objects = gfs2_glock_shrink_scan;
+	glock_shrinker->seeks = DEFAULT_SEEKS;
+
+	shrinker_register(glock_shrinker);
+
 	for (i = 0; i < GLOCK_WAIT_TABLE_SIZE; i++)
 		init_waitqueue_head(glock_wait_table + i);
 
@@ -2487,7 +2489,7 @@  int __init gfs2_glock_init(void)
 
 void gfs2_glock_exit(void)
 {
-	unregister_shrinker(&glock_shrinker);
+	shrinker_unregister(glock_shrinker);
 	rhashtable_destroy(&gl_hash_table);
 	destroy_workqueue(glock_workqueue);
 }