diff options
Diffstat (limited to 'fs/fat')
| -rw-r--r-- | fs/fat/dir.c | 9 | ||||
| -rw-r--r-- | fs/fat/fat.h | 1 |
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; |