Linux 2.6.31 Release for Digi ConnectCore Wi-i.MX boards2.6.31-digi-201102101717

2 files changed, 10 insertions, 0 deletions

diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 530b4ca01510..4ceff5110417 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -758,6 +758,13 @@ static int fat_ioctl_readdir(struct inode *inode, struct file *filp,
 	return ret;
 }
 
+static int fat_ioctl_volume_id(struct inode *dir)
+{
+	struct super_block *sb = dir->i_sb;
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+	return sbi->vol_id;
+}
+
 static int fat_dir_ioctl(struct inode *inode, struct file *filp,
 			 unsigned int cmd, unsigned long arg)
 {
@@ -773,6 +780,8 @@ static int fat_dir_ioctl(struct inode *inode, struct file *filp,
 		short_only = 0;
 		both = 1;
 		break;
+	case VFAT_IOCTL_GET_VOLUME_ID:
+		return fat_ioctl_volume_id(inode);
 	default:
 		return fat_generic_ioctl(inode, filp, cmd, arg);
 	}
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index adb0e72a176d..09305185330f 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -76,6 +76,7 @@ struct msdos_sb_info {
 	const void *dir_ops;		     /* Opaque; default directory operations */
 	int dir_per_block;	     /* dir entries per block */
 	int dir_per_block_bits;	     /* log2(dir_per_block) */
+	unsigned long vol_id;        /* volume ID */
 
 	int fatent_shift;
 	struct fatent_operations *fatent_ops;