1 files changed, 56 insertions, 1 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 2aaf3eaaf13d..5f3368ab0fa9 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1378,7 +1378,59 @@ static int fuse_notify_inval_entry(struct fuse_conn *fc, unsigned int size,
         down_read(&fc->killsb);
         err = -ENOENT;
         if (fc->sb)
-                err = fuse_reverse_inval_entry(fc->sb, outarg.parent, &name);
+                err = fuse_reverse_inval_entry(fc->sb, outarg.parent, 0, &name);
+        up_read(&fc->killsb);
+        kfree(buf);
+        return err;
+
+err:
+        kfree(buf);
+        fuse_copy_finish(cs);
+        return err;
+}
+
+static int fuse_notify_delete(struct fuse_conn *fc, unsigned int size,
+                              struct fuse_copy_state *cs)
+{
+        struct fuse_notify_delete_out outarg;
+        int err = -ENOMEM;
+        char *buf;
+        struct qstr name;
+
+        buf = kzalloc(FUSE_NAME_MAX + 1, GFP_KERNEL);
+        if (!buf)
+                goto err;
+
+        err = -EINVAL;
+        if (size < sizeof(outarg))
+                goto err;
+
+        err = fuse_copy_one(cs, &outarg, sizeof(outarg));
+        if (err)
+                goto err;
+
+        err = -ENAMETOOLONG;
+        if (outarg.namelen > FUSE_NAME_MAX)
+                goto err;
+
+        err = -EINVAL;
+        if (size != sizeof(outarg) + outarg.namelen + 1)
+                goto err;
+
+        name.name = buf;
+        name.len = outarg.namelen;
+        err = fuse_copy_one(cs, buf, outarg.namelen + 1);
+        if (err)
+                goto err;
+        fuse_copy_finish(cs);
+        buf[outarg.namelen] = 0;
+        name.hash = full_name_hash(name.name, name.len);
+
+        down_read(&fc->killsb);
+        err = -ENOENT;
+        if (fc->sb)
+                err = fuse_reverse_inval_entry(fc->sb, outarg.parent,
+                                               outarg.child, &name);
         up_read(&fc->killsb);
         kfree(buf);
         return err;
@@ -1597,6 +1649,9 @@ static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
         case FUSE_NOTIFY_RETRIEVE:
                 return fuse_notify_retrieve(fc, size, cs);
 
+        case FUSE_NOTIFY_DELETE:
+                return fuse_notify_delete(fc, size, cs);
+
         default:
                 fuse_copy_finish(cs);
                 return -EINVAL;