1 files changed, 11 insertions, 1 deletions

diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index a9806bc21ec3..c2b752341f89 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -374,9 +374,16 @@ static int proc_delete_dentry(struct dentry * dentry)
         return 1;
 }
 
+static int proc_revalidate_dentry(struct dentry *dentry, struct nameidata *nd)
+{
+        d_drop(dentry);
+        return 0;
+}
+
 static struct dentry_operations proc_dentry_operations =
 {
         .d_delete       = proc_delete_dentry,
+        .d_revalidate   = proc_revalidate_dentry,
 };
 
 /*
@@ -397,8 +404,11 @@ struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry, struct nam
                         if (de->namelen != dentry->d_name.len)
                                 continue;
                         if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
-                                unsigned int ino = de->low_ino;
+                                unsigned int ino;
 
+                                if (de->shadow_proc)
+                                        de = de->shadow_proc(current, de);
+                                ino = de->low_ino;
                                 de_get(de);
                                 spin_unlock(&proc_subdir_lock);
                                 error = -EINVAL;