1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 11559c513dfb..61ce251ad83e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2218,8 +2218,21 @@ static inline void mark_inode_dirty_sync(struct inode *inode)
 	__mark_inode_dirty(inode, I_DIRTY_SYNC);
 }
 
+/*
+ * returns the refcount on the inode. it can change arbitrarily.
+ */
+static inline int icount_read_once(const struct inode *inode)
+{
+	return atomic_read(&inode->i_count);
+}
+
+/*
+ * returns the refcount on the inode. The lock guarantees no new references
+ * are added, but references can be dropped as long as the result is > 0.
+ */
 static inline int icount_read(const struct inode *inode)
 {
+	lockdep_assert_held(&inode->i_lock);
 	return atomic_read(&inode->i_count);
 }