linux-toradex.git/include/uapi/linux/btrfs.h, branch v4.7-rc2

Merge branch 'foreign/jeffm/uapi' into for-chris-4.7-20160516

2016-05-16T13:46:29+00:00

# Conflicts:
#	include/uapi/linux/btrfs.h

btrfs: uapi/linux/btrfs.h migration, move struct btrfs_ioctl_defrag_range_args

2016-04-28T09:06:41+00:00

struct btrfs_ioctl_defrag_range_args is used by the BTRFS_IOC_DEFRAG_RANGE
ioctl.

Signed-off-by: Jeff Mahoney 
Reviewed-by: Liu Bo 
Reviewed-by: Josef Bacik 
Signed-off-by: David Sterba

btrfs: uapi/linux/btrfs.h migration, move balance flags

2016-04-28T09:06:41+00:00

The BTRFS_BALANCE_* flags are used by struct btrfs_ioctl_balance_args.flags
and btrfs_ioctl_balance_args.{data,meta,sys}.flags in the BTRFS_IOC_BALANCE
ioctl.

Signed-off-by: Jeff Mahoney 
Reviewed-by: Liu Bo 
Reviewed-by: Josef Bacik 
Signed-off-by: David Sterba

btrfs: uapi/linux/btrfs.h migration, move feature flags

2016-04-28T09:06:41+00:00

The compat/compat_ro/incompat feature flags are used by the feature set/get
ioctls.

Signed-off-by: Jeff Mahoney 
Reviewed-by: Liu Bo 
Reviewed-by: Josef Bacik 
Signed-off-by: David Sterba

btrfs: uapi/linux/btrfs.h migration, document subvol flags

2016-04-28T09:06:41+00:00

Signed-off-by: Jeff Mahoney 
Reviewed-by: Liu Bo 
Reviewed-by: Josef Bacik 
Signed-off-by: David Sterba

btrfs: uapi/linux/btrfs.h migration, qgroup limit flags

2016-04-28T09:06:41+00:00

The BTRFS_QGROUP_LIMIT_* flags are required to tell the kernel which
fields are valid when using the BTRFS_IOC_QGROUP_LIMIT ioctl.

Signed-off-by: Jeff Mahoney 
Reviewed-by: Liu Bo 
Reviewed-by: Josef Bacik 
Signed-off-by: David Sterba

btrfs: uapi/linux/btrfs.h migration, move BTRFS_LABEL_SIZE

2016-04-28T09:06:41+00:00

BTRFS_LABEL_SIZE is required to define the BTRFS_IOC_GET_FSLABEL and
BTRFS_IOC_SET_FSLABEL ioctls.

Signed-off-by: Jeff Mahoney 
Reviewed-by: Liu Bo 
Reviewed-by: Josef Bacik 
Signed-off-by: David Sterba

btrfs: rename flags for vol args v2

2016-04-28T08:59:13+00:00

Rename BTRFS_DEVICE_BY_ID so it's more descriptive that we specify the
device by id, it'll be part of the public API. The mask of supported
flags is also renamed, only for internal use.

The error code for unknown flags is EOPNOTSUPP, fixed.

Reviewed-by: Anand Jain 
Signed-off-by: David Sterba

btrfs: introduce device delete by devid

2016-04-28T08:59:13+00:00

This introduces new ioctl BTRFS_IOC_RM_DEV_V2, which uses enhanced struct
btrfs_ioctl_vol_args_v2 to carry devid as an user argument.

The patch won't delete the old ioctl interface and so kernel remains
backward compatible with user land progs.

Test case/script:
echo "0 $(blockdev --getsz /dev/sdf) linear /dev/sdf 0" | dmsetup create bad_disk
mkfs.btrfs -f -d raid1 -m raid1 /dev/sdd /dev/sde /dev/mapper/bad_disk
mount /dev/sdd /btrfs
dmsetup suspend bad_disk
echo "0 $(blockdev --getsz /dev/sdf) error /dev/sdf 0" | dmsetup load bad_disk
dmsetup resume bad_disk
echo "bad disk failed. now deleting/replacing"
btrfs dev del  3  /btrfs
echo $?
btrfs fi show /btrfs
umount /btrfs
btrfs-show-super /dev/sdd | egrep num_device
dmsetup remove bad_disk
wipefs -a /dev/sdf

Signed-off-by: Anand Jain 
Reported-by: Martin 
[ adjust messages, s/disk/device/ ]
Signed-off-by: David Sterba

btrfs: extend balance filter usage to take minimum and maximum

2015-10-27T02:38:30+00:00

Similar to the 'limit' filter, we can enhance the 'usage' filter to
accept a range. The change is backward compatible, the range is applied
only in connection with the BTRFS_BALANCE_ARGS_USAGE_RANGE flag.

We don't have a usecase yet, the current syntax has been sufficient. The
enhancement should provide parity with other range-like filters.

Signed-off-by: David Sterba 
Signed-off-by: Chris Mason