1 files changed, 14 insertions, 2 deletions

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 59fcd24b1468..f958c19e3ca5 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -167,6 +167,8 @@ struct dentry_operations {
         void (*d_release)(struct dentry *);
         void (*d_iput)(struct dentry *, struct inode *);
         char *(*d_dname)(struct dentry *, char *, int);
+        struct vfsmount *(*d_automount)(struct path *);
+        int (*d_manage)(struct dentry *, bool, bool);
 } ____cacheline_aligned;
 
 /*
@@ -205,13 +207,18 @@ struct dentry_operations {
 
 #define DCACHE_CANT_MOUNT       0x0100
 #define DCACHE_GENOCIDE         0x0200
-#define DCACHE_MOUNTED          0x0400  /* is a mountpoint */
 
 #define DCACHE_OP_HASH          0x1000
 #define DCACHE_OP_COMPARE       0x2000
 #define DCACHE_OP_REVALIDATE    0x4000
 #define DCACHE_OP_DELETE        0x8000
 
+#define DCACHE_MOUNTED          0x10000 /* is a mountpoint */
+#define DCACHE_NEED_AUTOMOUNT   0x20000 /* handle automount on this dir */
+#define DCACHE_MANAGE_TRANSIT   0x40000 /* manage transit from this dirent */
+#define DCACHE_MANAGED_DENTRY \
+        (DCACHE_MOUNTED|DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT)
+
 extern seqlock_t rename_lock;
 
 static inline int dname_external(struct dentry *dentry)
@@ -399,7 +406,12 @@ static inline void dont_mount(struct dentry *dentry)
 
 extern void dput(struct dentry *);
 
-static inline int d_mountpoint(struct dentry *dentry)
+static inline bool d_managed(struct dentry *dentry)
+{
+        return dentry->d_flags & DCACHE_MANAGED_DENTRY;
+}
+
+static inline bool d_mountpoint(struct dentry *dentry)
 {
         return dentry->d_flags & DCACHE_MOUNTED;
 }