3 files changed, 19 insertions, 20 deletions

diff --git a/fs/dcache.c b/fs/dcache.c
index d600a0af3b2..22a0ef41bad 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -109,16 +109,6 @@ static inline struct hlist_bl_head *d_hash(struct dentry *parent,
         return dentry_hashtable + (hash & D_HASHMASK);
 }
 
-static inline void spin_lock_bucket(struct hlist_bl_head *b)
-{
-        bit_spin_lock(0, (unsigned long *)&b->first);
-}
-
-static inline void spin_unlock_bucket(struct hlist_bl_head *b)
-{
-        __bit_spin_unlock(0, (unsigned long *)&b->first);
-}
-
 /* Statistics gathering. */
 struct dentry_stat_t dentry_stat = {
         .age_limit = 45,
@@ -334,10 +324,10 @@ void __d_drop(struct dentry *dentry)
                 else
                         b = d_hash(dentry->d_parent, dentry->d_name.hash);
 
-                spin_lock_bucket(b);
+                hlist_bl_lock(b);
                 __hlist_bl_del(&dentry->d_hash);
                 dentry->d_hash.pprev = NULL;
-                spin_unlock_bucket(b);
+                hlist_bl_unlock(b);
 
                 dentry_rcuwalk_barrier(dentry);
         }
@@ -1594,9 +1584,9 @@ struct dentry *d_obtain_alias(struct inode *inode)
         tmp->d_inode = inode;
         tmp->d_flags |= DCACHE_DISCONNECTED;
         list_add(&tmp->d_alias, &inode->i_dentry);
-        spin_lock_bucket(&tmp->d_sb->s_anon);
+        hlist_bl_lock(&tmp->d_sb->s_anon);
         hlist_bl_add_head(&tmp->d_hash, &tmp->d_sb->s_anon);
-        spin_unlock_bucket(&tmp->d_sb->s_anon);
+        hlist_bl_unlock(&tmp->d_sb->s_anon);
         spin_unlock(&tmp->d_lock);
         spin_unlock(&inode->i_lock);
         security_d_instantiate(tmp, inode);
@@ -2076,10 +2066,10 @@ EXPORT_SYMBOL(d_delete);
 static void __d_rehash(struct dentry * entry, struct hlist_bl_head *b)
 {
         BUG_ON(!d_unhashed(entry));
-        spin_lock_bucket(b);
+        hlist_bl_lock(b);
         entry->d_flags |= DCACHE_RCUACCESS;
         hlist_bl_add_head_rcu(&entry->d_hash, b);
-        spin_unlock_bucket(b);
+        hlist_bl_unlock(b);
 }
 
 static void _d_rehash(struct dentry * entry)
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index f07643e21bf..7a4fb630a32 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -93,14 +93,12 @@ static unsigned int gl_hash(const struct gfs2_sbd *sdp,
 
 static inline void spin_lock_bucket(unsigned int hash)
 {
-        struct hlist_bl_head *bl = &gl_hash_table[hash];
-        bit_spin_lock(0, (unsigned long *)bl);
+        hlist_bl_lock(&gl_hash_table[hash]);
 }
 
 static inline void spin_unlock_bucket(unsigned int hash)
 {
-        struct hlist_bl_head *bl = &gl_hash_table[hash];
-        __bit_spin_unlock(0, (unsigned long *)bl);
+        hlist_bl_unlock(&gl_hash_table[hash]);
 }
 
 static void gfs2_glock_dealloc(struct rcu_head *rcu)
diff --git a/include/linux/list_bl.h b/include/linux/list_bl.h
index 5bad17d1acd..31f9d75adc5 100644
--- a/include/linux/list_bl.h
+++ b/include/linux/list_bl.h
@@ -2,6 +2,7 @@
 #define _LINUX_LIST_BL_H
 
 #include <linux/list.h>
+#include <linux/bit_spinlock.h>
 
 /*
  * Special version of lists, where head of the list has a lock in the lowest
@@ -114,6 +115,16 @@ static inline void hlist_bl_del_init(struct hlist_bl_node *n)
         }
 }
 
+static inline void hlist_bl_lock(struct hlist_bl_head *b)
+{
+        bit_spin_lock(0, (unsigned long *)b);
+}
+
+static inline void hlist_bl_unlock(struct hlist_bl_head *b)
+{
+        __bit_spin_unlock(0, (unsigned long *)b);
+}
+
 /**
  * hlist_bl_for_each_entry      - iterate over list of given type
  * @tpos:       the type * to use as a loop cursor.