diff --git a/fs/dcache.c b/fs/dcache.c
index 03161240e744b30e32fcebd7dbf8f65d5f2eef21..e989ecb44a65962e887666cb4c595c05f85697ca 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -48,7 +48,7 @@
  *   - the dcache hash table
  * s_anon bl list spinlock protects:
  *   - the s_anon list (see __d_drop)
- * dcache_lru_lock protects:
+ * dentry->d_sb->s_dentry_lru_lock protects:
  *   - the dcache lru lists and counters
  * d_lock protects:
  *   - d_flags
@@ -63,7 +63,7 @@
  * Ordering:
  * dentry->d_inode->i_lock
  *   dentry->d_lock
- *     dcache_lru_lock
+ *     dentry->d_sb->s_dentry_lru_lock
  *     dcache_hash_bucket lock
  *     s_anon lock
  *
@@ -81,7 +81,6 @@
 int sysctl_vfs_cache_pressure __read_mostly = 100;
 EXPORT_SYMBOL_GPL(sysctl_vfs_cache_pressure);
 
-static __cacheline_aligned_in_smp DEFINE_SPINLOCK(dcache_lru_lock);
 __cacheline_aligned_in_smp DEFINE_SEQLOCK(rename_lock);
 
 EXPORT_SYMBOL(rename_lock);
@@ -362,12 +361,12 @@ static void dentry_unlink_inode(struct dentry * dentry)
 static void dentry_lru_add(struct dentry *dentry)
 {
 	if (unlikely(!(dentry->d_flags & DCACHE_LRU_LIST))) {
-		spin_lock(&dcache_lru_lock);
+		spin_lock(&dentry->d_sb->s_dentry_lru_lock);
 		dentry->d_flags |= DCACHE_LRU_LIST;
 		list_add(&dentry->d_lru, &dentry->d_sb->s_dentry_lru);
 		dentry->d_sb->s_nr_dentry_unused++;
 		this_cpu_inc(nr_dentry_unused);
-		spin_unlock(&dcache_lru_lock);
+		spin_unlock(&dentry->d_sb->s_dentry_lru_lock);
 	}
 }
 
@@ -385,15 +384,15 @@ static void __dentry_lru_del(struct dentry *dentry)
 static void dentry_lru_del(struct dentry *dentry)
 {
 	if (!list_empty(&dentry->d_lru)) {
-		spin_lock(&dcache_lru_lock);
+		spin_lock(&dentry->d_sb->s_dentry_lru_lock);
 		__dentry_lru_del(dentry);
-		spin_unlock(&dcache_lru_lock);
+		spin_unlock(&dentry->d_sb->s_dentry_lru_lock);
 	}
 }
 
 static void dentry_lru_move_list(struct dentry *dentry, struct list_head *list)
 {
-	spin_lock(&dcache_lru_lock);
+	spin_lock(&dentry->d_sb->s_dentry_lru_lock);
 	if (list_empty(&dentry->d_lru)) {
 		dentry->d_flags |= DCACHE_LRU_LIST;
 		list_add_tail(&dentry->d_lru, list);
@@ -402,7 +401,7 @@ static void dentry_lru_move_list(struct dentry *dentry, struct list_head *list)
 	} else {
 		list_move_tail(&dentry->d_lru, list);
 	}
-	spin_unlock(&dcache_lru_lock);
+	spin_unlock(&dentry->d_sb->s_dentry_lru_lock);
 }
 
 /**
@@ -895,14 +894,14 @@ void prune_dcache_sb(struct super_block *sb, int count)
 	LIST_HEAD(tmp);
 
 relock:
-	spin_lock(&dcache_lru_lock);
+	spin_lock(&sb->s_dentry_lru_lock);
 	while (!list_empty(&sb->s_dentry_lru)) {
 		dentry = list_entry(sb->s_dentry_lru.prev,
 				struct dentry, d_lru);
 		BUG_ON(dentry->d_sb != sb);
 
 		if (!spin_trylock(&dentry->d_lock)) {
-			spin_unlock(&dcache_lru_lock);
+			spin_unlock(&sb->s_dentry_lru_lock);
 			cpu_relax();
 			goto relock;
 		}
@@ -918,11 +917,11 @@ void prune_dcache_sb(struct super_block *sb, int count)
 			if (!--count)
 				break;
 		}
-		cond_resched_lock(&dcache_lru_lock);
+		cond_resched_lock(&sb->s_dentry_lru_lock);
 	}
 	if (!list_empty(&referenced))
 		list_splice(&referenced, &sb->s_dentry_lru);
-	spin_unlock(&dcache_lru_lock);
+	spin_unlock(&sb->s_dentry_lru_lock);
 
 	shrink_dentry_list(&tmp);
 }
@@ -938,14 +937,14 @@ void shrink_dcache_sb(struct super_block *sb)
 {
 	LIST_HEAD(tmp);
 
-	spin_lock(&dcache_lru_lock);
+	spin_lock(&sb->s_dentry_lru_lock);
 	while (!list_empty(&sb->s_dentry_lru)) {
 		list_splice_init(&sb->s_dentry_lru, &tmp);
-		spin_unlock(&dcache_lru_lock);
+		spin_unlock(&sb->s_dentry_lru_lock);
 		shrink_dentry_list(&tmp);
-		spin_lock(&dcache_lru_lock);
+		spin_lock(&sb->s_dentry_lru_lock);
 	}
-	spin_unlock(&dcache_lru_lock);
+	spin_unlock(&sb->s_dentry_lru_lock);
 }
 EXPORT_SYMBOL(shrink_dcache_sb);
 
diff --git a/fs/super.c b/fs/super.c
index 63b6863bac7b0bf2e7736c7d05f96df02501d849..3c5318694ccd4ad365903a7b150da889e3e57449 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -176,6 +176,7 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
 		INIT_HLIST_BL_HEAD(&s->s_anon);
 		INIT_LIST_HEAD(&s->s_inodes);
 		INIT_LIST_HEAD(&s->s_dentry_lru);
+		spin_lock_init(&s->s_dentry_lru_lock);
 		INIT_LIST_HEAD(&s->s_inode_lru);
 		spin_lock_init(&s->s_inode_lru_lock);
 		INIT_LIST_HEAD(&s->s_mounts);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3b3edac75df285d7a1fde4f3078d24d93f7366a6..14a90f6886fa44611afdc030551487c7e41d94cd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1269,7 +1269,9 @@ struct super_block {
 	struct list_head	s_files;
 #endif
 	struct list_head	s_mounts;	/* list of mounts; _not_ for fs use */
-	/* s_dentry_lru, s_nr_dentry_unused protected by dcache.c lru locks */
+
+	/* s_dentry_lru_lock protects s_dentry_lru and s_nr_dentry_unused */
+	spinlock_t		s_dentry_lru_lock ____cacheline_aligned_in_smp;
 	struct list_head	s_dentry_lru;	/* unused dentry lru */
 	long			s_nr_dentry_unused;	/* # of dentry on lru */