1 files changed, 8 insertions, 0 deletions

diff --git a/fs/fat/file.c b/fs/fat/file.c
index b0b632e50ddb..9b104f543056 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -114,6 +114,12 @@ out:
         return err;
 }
 
+static int fat_ioctl_get_volume_id(struct inode *inode, u32 __user *user_attr)
+{
+        struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
+        return put_user(sbi->vol_id, user_attr);
+}
+
 long fat_generic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
         struct inode *inode = file_inode(filp);
@@ -124,6 +130,8 @@ long fat_generic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                 return fat_ioctl_get_attributes(inode, user_attr);
         case FAT_IOCTL_SET_ATTRIBUTES:
                 return fat_ioctl_set_attributes(filp, user_attr);
+        case FAT_IOCTL_GET_VOLUME_ID:
+                return fat_ioctl_get_volume_id(inode, user_attr);
         default:
                 return -ENOTTY; /* Inappropriate ioctl for device */
         }