[PATCH v3 10/49] erofs: dynamically allocate the erofs-shrinker

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Use new APIs to dynamically allocate the erofs-shrinker.

Signed-off-by: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx>
Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
---
 fs/erofs/utils.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c
index cc6fb9e98899..6e1a828e6ca3 100644
--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c
@@ -270,19 +270,25 @@ static unsigned long erofs_shrink_scan(struct shrinker *shrink,
 	return freed;
 }
 
-static struct shrinker erofs_shrinker_info = {
-	.scan_objects = erofs_shrink_scan,
-	.count_objects = erofs_shrink_count,
-	.seeks = DEFAULT_SEEKS,
-};
+static struct shrinker *erofs_shrinker_info;
 
 int __init erofs_init_shrinker(void)
 {
-	return register_shrinker(&erofs_shrinker_info, "erofs-shrinker");
+	erofs_shrinker_info = shrinker_alloc(0, "erofs-shrinker");
+	if (!erofs_shrinker_info)
+		return -ENOMEM;
+
+	erofs_shrinker_info->count_objects = erofs_shrink_count;
+	erofs_shrinker_info->scan_objects = erofs_shrink_scan;
+	erofs_shrinker_info->seeks = DEFAULT_SEEKS;
+
+	shrinker_register(erofs_shrinker_info);
+
+	return 0;
 }
 
 void erofs_exit_shrinker(void)
 {
-	unregister_shrinker(&erofs_shrinker_info);
+	shrinker_free(erofs_shrinker_info);
 }
 #endif	/* !CONFIG_EROFS_FS_ZIP */
-- 
2.30.2




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