diff mbox series

[v5,07/16] mm: dcache: use kmem_cache_alloc_lru() to allocate dentry

Message ID 20211220085649.8196-8-songmuchun@bytedance.com (mailing list archive)
State New
Headers show
Series Optimize list lru memory consumption | expand

Commit Message

Muchun Song Dec. 20, 2021, 8:56 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
dentry.

Signed-off-by: Muchun Song <songmuchun@bytedance.com>
---
 fs/dcache.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Roman Gushchin Jan. 11, 2022, 7:05 p.m. UTC | #1 
On Mon, Dec 20, 2021 at 04:56:40PM +0800, Muchun Song wrote:
> 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
> dentry.
> 
> Signed-off-by: Muchun Song <songmuchun@bytedance.com>

Acked-by: Roman Gushchin <guro@fb.com>
diff mbox series

Patch

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;