diff options
| author | Gabríel Arthúr Pétursson | 2015-09-28 22:32:41 +0000 |
|---|---|---|
| committer | Chris Mason | 2015-10-26 19:38:29 -0700 |
| commit | dee32d0ac3719ef8d640efaf0884111df444730f (patch) | |
| tree | 26664ba9632bdac8539e8cfec61807f8e7d120bd /include/uapi | |
| parent | 12907fc79818a62a2478f84f7795afa774bf7f9c (diff) | |
btrfs: add balance filter for stripes
Balance block groups which have the given number of stripes, defined by
a range min..max. This is useful to selectively rebalance only chunks
that do not span enough devices, applies to RAID0/10/5/6.
Signed-off-by: Gabríel Arthúr Pétursson <gabriel@system.is>
[ renamed bargs members, added to the UAPI, wrote the changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/btrfs.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index 11f13108b78b..17a94704b183 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -229,7 +229,15 @@ struct btrfs_balance_args { __u32 limit_max; }; }; - __u64 unused[7]; + + /* + * Process chunks that cross stripes_min..stripes_max devices, + * BTRFS_BALANCE_ARGS_STRIPES_RANGE + */ + __le32 stripes_min; + __le32 stripes_max; + + __u64 unused[6]; } __attribute__ ((__packed__)); /* report balance progress to userspace */ |