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[v2,11/21] mm: dcache: use kmem_cache_alloc_lru() to allocate dentry

Message ID 20210527062148.9361-12-songmuchun@bytedance.com (mailing list archive)
State New
Headers show
Series Optimize list lru memory consumption | expand

Commit Message

Muchun Song May 27, 2021, 6:21 a.m. UTC
Like inode cache, the dentry will also be added to its memcg list_lru.
So replace kmem_cache_alloc() with kmem_cache_alloc_lru() to allocate

Signed-off-by: Muchun Song <songmuchun@bytedance.com>
 fs/dcache.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/fs/dcache.c b/fs/dcache.c
index cf871a81f4fd..36d4806d7284 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1741,7 +1741,8 @@  static struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
 	char *dname;
 	int err;
-	dentry = kmem_cache_alloc(dentry_cache, GFP_KERNEL);
+	dentry = kmem_cache_alloc_lru(dentry_cache, &sb->s_dentry_lru,
+				      GFP_KERNEL);
 	if (!dentry)
 		return NULL;