From bed92eae26ccf280d1a2168b7509447b56675a27 Mon Sep 17 00:00:00 2001 From: Arne Jansen Date: Thu, 28 Jun 2012 18:03:02 +0200 Subject: Btrfs: qgroup implementation and prototypes Signed-off-by: Arne Jansen Signed-off-by: Jan Schmidt --- fs/btrfs/ioctl.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'fs/btrfs/ioctl.h') diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index e440aa653c30..a8a2230f4c5c 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -35,6 +35,30 @@ struct btrfs_ioctl_vol_args { #define BTRFS_FSID_SIZE 16 #define BTRFS_UUID_SIZE 16 +#define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0) + +struct btrfs_qgroup_limit { + __u64 flags; + __u64 max_rfer; + __u64 max_excl; + __u64 rsv_rfer; + __u64 rsv_excl; +}; + +struct btrfs_qgroup_inherit { + __u64 flags; + __u64 num_qgroups; + __u64 num_ref_copies; + __u64 num_excl_copies; + struct btrfs_qgroup_limit lim; + __u64 qgroups[0]; +}; + +struct btrfs_ioctl_qgroup_limit_args { + __u64 qgroupid; + struct btrfs_qgroup_limit lim; +}; + #define BTRFS_SUBVOL_NAME_MAX 4039 struct btrfs_ioctl_vol_args_v2 { __s64 fd; -- cgit v1.2.2 From 5d13a37bd5327220e13329943d1228acfbe5934a Mon Sep 17 00:00:00 2001 From: Arne Jansen Date: Wed, 14 Sep 2011 15:53:51 +0200 Subject: Btrfs: add qgroup ioctls Ioctls to control the qgroup feature like adding and removing qgroups and assigning qgroups. Signed-off-by: Arne Jansen --- fs/btrfs/ioctl.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'fs/btrfs/ioctl.h') diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index a8a2230f4c5c..9dd50c4656b3 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -319,6 +319,25 @@ struct btrfs_ioctl_get_dev_stats { __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */ }; +#define BTRFS_QUOTA_CTL_ENABLE 1 +#define BTRFS_QUOTA_CTL_DISABLE 2 +#define BTRFS_QUOTA_CTL_RESCAN 3 +struct btrfs_ioctl_quota_ctl_args { + __u64 cmd; + __u64 status; +}; + +struct btrfs_ioctl_qgroup_assign_args { + __u64 assign; + __u64 src; + __u64 dst; +}; + +struct btrfs_ioctl_qgroup_create_args { + __u64 create; + __u64 qgroupid; +}; + #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \ struct btrfs_ioctl_vol_args) #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \ @@ -388,4 +407,12 @@ struct btrfs_ioctl_get_dev_stats { #define BTRFS_IOC_GET_AND_RESET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 53, \ struct btrfs_ioctl_get_dev_stats) +#define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \ + struct btrfs_ioctl_quota_ctl_args) +#define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \ + struct btrfs_ioctl_qgroup_assign_args) +#define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \ + struct btrfs_ioctl_qgroup_create_args) +#define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \ + struct btrfs_ioctl_qgroup_limit_args) #endif -- cgit v1.2.2 From 6f72c7e20dbaea55f04546de69586c84a3654503 Mon Sep 17 00:00:00 2001 From: Arne Jansen Date: Wed, 14 Sep 2011 15:58:21 +0200 Subject: 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 --- fs/btrfs/ioctl.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'fs/btrfs/ioctl.h') 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, \ -- cgit v1.2.2