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Btrfs: Add support for device scanning and detection ioctls

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-03-24 15:02:07 -04:00
parent 239b14b32d
commit 8a4b83cc8b
7 changed files with 333 additions and 44 deletions
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6
fs/btrfs/ioctl.h
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@ -22,8 +22,10 @@
#define BTRFS_IOCTL_MAGIC 0x94
#define BTRFS_VOL_NAME_MAX 255
#define BTRFS_PATH_NAME_MAX 4095
struct btrfs_ioctl_vol_args {
char name[BTRFS_VOL_NAME_MAX + 1];
char name[BTRFS_PATH_NAME_MAX + 1];
};
#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
@ -32,4 +34,6 @@ struct btrfs_ioctl_vol_args {
struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
struct btrfs_ioctl_vol_args)
#endif