[PATCH v6 03/14] dcache: Add a new helper function d_count() to return refcount

[Waiman Long <Waiman.Long@hp.com>]

This patch adds a new helper function d_count() in dcache.h for
returning the current reference count of the dentry object. It
should be used by all the files outside of the core dcache.c and
namei.c files.

Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
 include/linux/dcache.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index f42dbe1..7c6bbf0 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -258,6 +258,16 @@ extern int have_submounts(struct dentry *);
 extern void d_rehash(struct dentry *);
 
 /**
+ * d_count - return the reference count in dentry
+ * @entry: dentry pointer
+ * Returns: current value of reference count
+ */
+static inline unsigned int d_count(struct dentry *entry)
+{
+	return entry->d_count;
+}
+
+/**
  * d_add - add dentry to hash queues
  * @entry: dentry to add
  * @inode: The inode to attach to this dentry
-- 
1.7.1