From: Muchun Song <songmuchun@xxxxxxxxxxxxx> Subject: mm: dcache: use kmem_cache_alloc_lru() to allocate dentry 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. Link: https://lkml.kernel.org/r/20220228122126.37293-8-songmuchun@xxxxxxxxxxxxx Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> Acked-by: Roman Gushchin <roman.gushchin@xxxxxxxxx> Cc: Alex Shi <alexs@xxxxxxxxxx> Cc: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx> Cc: Chao Yu <chao@xxxxxxxxxx> Cc: Dave Chinner <david@xxxxxxxxxxxxx> Cc: Fam Zheng <fam.zheng@xxxxxxxxxxxxx> Cc: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Kari Argillander <kari.argillander@xxxxxxxxx> Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxxxx> Cc: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx> Cc: Shakeel Butt <shakeelb@xxxxxxxxxx> Cc: Theodore Ts'o <tytso@xxxxxxx> Cc: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx> Cc: Vlastimil Babka <vbabka@xxxxxxx> Cc: Wei Yang <richard.weiyang@xxxxxxxxx> Cc: Xiongchun Duan <duanxiongchun@xxxxxxxxxxxxx> Cc: Yang Shi <shy828301@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/dcache.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/fs/dcache.c~mm-dcache-use-kmem_cache_alloc_lru-to-allocate-dentry +++ a/fs/dcache.c @@ -1766,7 +1766,8 @@ static struct dentry *__d_alloc(struct s 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; _
