1 files changed, 22 insertions, 1 deletions

diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index c7ff35774344..d196712c4b94 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -490,6 +490,7 @@ static int autofs4_dir_symlink(struct inode *dir,
 {
         struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
         struct autofs_info *ino = autofs4_dentry_ino(dentry);
+        struct autofs_info *p_ino;
         struct inode *inode;
         char *cp;
 
@@ -523,6 +524,10 @@ static int autofs4_dir_symlink(struct inode *dir,
 
         dentry->d_fsdata = ino;
         ino->dentry = dget(dentry);
+        atomic_inc(&ino->count);
+        p_ino = autofs4_dentry_ino(dentry->d_parent);
+        if (p_ino && dentry->d_parent != dentry)
+                atomic_inc(&p_ino->count);
         ino->inode = inode;
 
         dir->i_mtime = CURRENT_TIME;
@@ -549,11 +554,17 @@ static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry)
 {
         struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
         struct autofs_info *ino = autofs4_dentry_ino(dentry);
+        struct autofs_info *p_ino;
         
         /* This allows root to remove symlinks */
         if ( !autofs4_oz_mode(sbi) && !capable(CAP_SYS_ADMIN) )
                 return -EACCES;
 
+        if (atomic_dec_and_test(&ino->count)) {
+                p_ino = autofs4_dentry_ino(dentry->d_parent);
+                if (p_ino && dentry->d_parent != dentry)
+                        atomic_dec(&p_ino->count);
+        }
         dput(ino->dentry);
 
         dentry->d_inode->i_size = 0;
@@ -570,6 +581,7 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
 {
         struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
         struct autofs_info *ino = autofs4_dentry_ino(dentry);
+        struct autofs_info *p_ino;
         
         if (!autofs4_oz_mode(sbi))
                 return -EACCES;
@@ -584,8 +596,12 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
         spin_unlock(&dentry->d_lock);
         spin_unlock(&dcache_lock);
 
+        if (atomic_dec_and_test(&ino->count)) {
+                p_ino = autofs4_dentry_ino(dentry->d_parent);
+                if (p_ino && dentry->d_parent != dentry)
+                        atomic_dec(&p_ino->count);
+        }
         dput(ino->dentry);
-
         dentry->d_inode->i_size = 0;
         dentry->d_inode->i_nlink = 0;
 
@@ -599,6 +615,7 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 {
         struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
         struct autofs_info *ino = autofs4_dentry_ino(dentry);
+        struct autofs_info *p_ino;
         struct inode *inode;
 
         if ( !autofs4_oz_mode(sbi) )
@@ -621,6 +638,10 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 
         dentry->d_fsdata = ino;
         ino->dentry = dget(dentry);
+        atomic_inc(&ino->count);
+        p_ino = autofs4_dentry_ino(dentry->d_parent);
+        if (p_ino && dentry->d_parent != dentry)
+                atomic_inc(&p_ino->count);
         ino->inode = inode;
         dir->i_nlink++;
         dir->i_mtime = CURRENT_TIME;