mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git
synced 2024-12-14 14:43:21 +08:00
4523dc2776
Asciidoctor is more strict about the formatting for the manual pages and needs exact number of =. Signed-off-by: David Sterba <dsterba@suse.com>
141 lines
3.0 KiB
Plaintext
141 lines
3.0 KiB
Plaintext
btrfs-ioctl(3)
|
|
==============
|
|
|
|
NAME
|
|
----
|
|
|
|
btrfs-ioctl - documentation for the ioctl interface to btrfs
|
|
|
|
DATA STRUCTURES AND DEFINITIONS
|
|
-------------------------------
|
|
|
|
[verse]
|
|
struct btrfs_ioctl_vol_args {
|
|
__s64 fd;
|
|
char name[BTRFS_PATH_NAME_MAX + 1];
|
|
};
|
|
|
|
[verse]
|
|
struct btrfs_ioctl_vol_args_v2 {
|
|
\__s64 fd;
|
|
\__u64 transid;
|
|
\__u64 flags;
|
|
union {
|
|
struct {
|
|
\__u64 size;
|
|
struct btrfs_qgroup_inherit \__user *qgroup_inherit;
|
|
};
|
|
__u64 unused[4];
|
|
};
|
|
char name[BTRFS_SUBVOL_NAME_MAX + 1];
|
|
};
|
|
|
|
[verse]
|
|
BTRFS_SUBVOL_NAME_MAX = 4039
|
|
BTRFS_PATH_NAME_MAX = 4087
|
|
|
|
LIST OF IOCTLS
|
|
--------------
|
|
|
|
BTRFS_IOC_SUBVOL_CREATE -- (obsolete) create a subvolume
|
|
BTRFS_IOC_SNAP_CREATE
|
|
BTRFS_IOC_DEFRAG
|
|
BTRFS_IOC_RESIZE
|
|
BTRFS_IOC_SCAN_DEV
|
|
BTRFS_IOC_TRANS_START
|
|
BTRFS_IOC_TRANS_END
|
|
BTRFS_IOC_SYNC
|
|
BTRFS_IOC_CLONE
|
|
BTRFS_IOC_ADD_DEV
|
|
BTRFS_IOC_RM_DEV
|
|
BTRFS_IOC_BALANCE
|
|
BTRFS_IOC_CLONE_RANGE
|
|
BTRFS_IOC_SUBVOL_CREATE
|
|
BTRFS_IOC_SNAP_DESTROY
|
|
BTRFS_IOC_DEFRAG_RANGE
|
|
BTRFS_IOC_TREE_SEARCH
|
|
BTRFS_IOC_TREE_SEARCH_V2
|
|
BTRFS_IOC_INO_LOOKUP
|
|
BTRFS_IOC_DEFAULT_SUBVOL
|
|
BTRFS_IOC_SPACE_INFO
|
|
BTRFS_IOC_START_SYNC
|
|
BTRFS_IOC_WAIT_SYNC
|
|
BTRFS_IOC_SNAP_CREATE_V2
|
|
BTRFS_IOC_SUBVOL_CREATE_V2 -- create a subvolume
|
|
BTRFS_IOC_SUBVOL_GETFLAGS
|
|
BTRFS_IOC_SUBVOL_SETFLAGS
|
|
BTRFS_IOC_SCRUB
|
|
BTRFS_IOC_SCRUB_CANCEL
|
|
BTRFS_IOC_SCRUB_PROGRESS
|
|
BTRFS_IOC_DEV_INFO
|
|
BTRFS_IOC_FS_INFO
|
|
BTRFS_IOC_BALANCE_V2
|
|
BTRFS_IOC_BALANCE_CTL
|
|
BTRFS_IOC_BALANCE_PROGRESS
|
|
BTRFS_IOC_INO_PATHS
|
|
BTRFS_IOC_LOGICAL_INO
|
|
BTRFS_IOC_SET_RECEIVED_SUBVOL
|
|
BTRFS_IOC_SEND
|
|
BTRFS_IOC_DEVICES_READY
|
|
BTRFS_IOC_QUOTA_CTL
|
|
BTRFS_IOC_QGROUP_ASSIGN
|
|
BTRFS_IOC_QGROUP_CREATE
|
|
BTRFS_IOC_QGROUP_LIMIT
|
|
BTRFS_IOC_QUOTA_RESCAN
|
|
BTRFS_IOC_QUOTA_RESCAN_STATUS
|
|
BTRFS_IOC_QUOTA_RESCAN_WAIT
|
|
BTRFS_IOC_GET_FSLABEL
|
|
BTRFS_IOC_SET_FSLABEL
|
|
BTRFS_IOC_GET_DEV_STATS
|
|
BTRFS_IOC_DEV_REPLACE
|
|
BTRFS_IOC_FILE_EXTENT_SAME
|
|
BTRFS_IOC_GET_FEATURES
|
|
BTRFS_IOC_SET_FEATURES
|
|
BTRFS_IOC_GET_SUPPORTED_FEATURES
|
|
|
|
DETAILED DESCRIPTION
|
|
--------------------
|
|
|
|
BTRFS_IOC_SUBVOL_CREATE
|
|
~~~~~~~~~~~~~~~~~~~~~~~
|
|
NOTE: obsoleted by BTRFS_IOC_SUBVOL_CREATE_V2
|
|
|
|
_(since: 3.0, obsoleted: 4.0)_ Create a subvolume.
|
|
|
|
ioctl fd:: file descriptor of the parent directory of the new subvolume
|
|
argument:: struct btrfs_ioctl_vol_args
|
|
fd:: ignored
|
|
name:: name of the subvolume, although the buffer can be almost 4k, the file
|
|
size is limited by linux VFS to 255 characters and must not contain a slash
|
|
('/')
|
|
|
|
|
|
BTRFS_IOC_SUBVOL_CREATE_V2
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
NOTE: obsoletes BTRFS_IOC_SUBVOL_CREATE
|
|
|
|
_(since: 3.6)_ Create a subvolume, qgroup inheritance can be specified.
|
|
|
|
ioctl fd:: file descriptor of the parent directory of the new subvolume
|
|
argument:: struct btrfs_ioctl_vol_args_v2
|
|
fd:: ignored
|
|
transid:: ignored
|
|
flags:: ignored
|
|
size:: ...
|
|
qgroup_inherit:: ...
|
|
name:: name of the subvolume, although the buffer can be almost 4k, the file
|
|
size is limited by linux VFS to 255 characters and must not contain a slash
|
|
('/')
|
|
devid:: ...
|
|
|
|
|
|
AVAILABILITY
|
|
------------
|
|
*btrfs* is part of btrfs-progs.
|
|
Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for
|
|
further details.
|
|
|
|
SEE ALSO
|
|
--------
|
|
`ioctl`(2)
|