diff options
| author | Arne Jansen <sensille@gmx.net> | 2011-09-14 15:58:21 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-07-12 10:54:40 +0200 |
| commit | 6f72c7e20dbaea55f04546de69586c84a3654503 (patch) | |
| tree | 4d8e13968765f4a4381a0fe91a4fb157128cbbc5 /fs/btrfs/ioctl.h | |
| parent | Btrfs: add qgroup ioctls (diff) | |
| download | linux-6f72c7e20dbaea55f04546de69586c84a3654503.tar.xz linux-6f72c7e20dbaea55f04546de69586c84a3654503.zip | |
Btrfs: add qgroup inheritance
When creating a subvolume or snapshot, it is necessary
to initialize the qgroup account with a copy of some
other (tracking) qgroup. This patch adds parameters
to the ioctls to pass the information from which qgroup
to inherit.
Signed-off-by: Arne Jansen <sensille@gmx.net>
Diffstat (limited to 'fs/btrfs/ioctl.h')
| -rw-r--r-- | fs/btrfs/ioctl.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index 9dd50c4656b3..cdda57f1c240 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -32,6 +32,7 @@ struct btrfs_ioctl_vol_args { #define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) #define BTRFS_SUBVOL_RDONLY (1ULL << 1) +#define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) #define BTRFS_FSID_SIZE 16 #define BTRFS_UUID_SIZE 16 @@ -64,7 +65,13 @@ struct btrfs_ioctl_vol_args_v2 { __s64 fd; __u64 transid; __u64 flags; - __u64 unused[4]; + union { + struct { + __u64 size; + struct btrfs_qgroup_inherit __user *qgroup_inherit; + }; + __u64 unused[4]; + }; char name[BTRFS_SUBVOL_NAME_MAX + 1]; }; @@ -382,6 +389,8 @@ struct btrfs_ioctl_qgroup_create_args { #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64) #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \ struct btrfs_ioctl_vol_args_v2) +#define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \ + struct btrfs_ioctl_vol_args_v2) #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64) #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64) #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \ |