Hi all,
[1/9] is a RESEND with a reviewed-by.
[2/9]-[6/9] are bug fixes about qgroup_inherit(), these patch make
user can set the limits when creating a subvolume with the related
patch in userspace applied.
[7/9]-[8/9] are a cleanup for qgroup.
[9/9] provides a way for btrfs-progs to get the quota status by ioctl(),
then btrfs-progs can warn user when they are using qgroup with quota_disabled.
With this series patch applied, both btrfs and btrfs-progs:
[root@atest-guest linux_btrfs]# btrfs quota enable /mnt
[root@atest-guest linux_btrfs]# btrfs qgroup show -prce /mnt
qgroupid rfer excl max_rfer max_excl parent child
-------- ---- ---- -------- -------- ------ -----
0/5 16.00KiB 16.00KiB 0.00B 0.00B --- ---
[root@atest-guest linux_btrfs]# btrfs sub create /mnt/sub1
Create subvolume '/mnt/sub1'
[root@atest-guest linux_btrfs]# btrfs qgroup show -prce /mnt
qgroupid rfer excl max_rfer max_excl parent child
-------- ---- ---- -------- -------- ------ -----
0/5 16.00KiB 16.00KiB 0.00B 0.00B --- ---
0/257 16.00KiB 16.00KiB 0.00B 0.00B --- ---
[root@atest-guest linux_btrfs]# btrfs sub create /mnt/sub2 -r 10M -e 5M
Create subvolume '/mnt/sub2'
Set qgroup arguments:
max reference: 10485760
max exclusive: 5242880
[root@atest-guest linux_btrfs]# btrfs qgroup show -prce /mnt
qgroupid rfer excl max_rfer max_excl parent child
-------- ---- ---- -------- -------- ------ -----
0/5 16.00KiB 16.00KiB 0.00B 0.00B --- ---
0/257 16.00KiB 16.00KiB 0.00B 0.00B --- ---
0/258 16.00KiB 16.00KiB 10.00MiB 5.00MiB --- ---
Dongsheng Yang (8):
btrfs: qgroup: move WARN_ON() to the correct location.
btrfs: qgroup: inherit limit info from srcgroup in creating snapshot.
btrfs: qgroup: update qgroup in memory at the same time when we update
it in btree.
btrfs: qgroup: consolidate the parameter of fucntion
update_qgroup_limit_item().
btrfs: qgroup: update limit info in function btrfs_run_qgroups().
btrfs: qgroup: fix limit args override whole limit struct
Btrfs: qgroup: make the btree for qgroup increase from left to right.
Btrfs: qgroup: cleanup, remove an unsued parameter in
btrfs_create_qgroup().
Fan Chengniang (1):
btrfs: qgroup: obtain quota status
fs/btrfs/ioctl.c | 9 +++-
fs/btrfs/qgroup.c | 109 +++++++++++++++++++++++++++---------------
fs/btrfs/qgroup.h | 6 ++-
fs/btrfs/tests/qgroup-tests.c | 4 +-
include/uapi/linux/btrfs.h | 3 ++
5 files changed, 87 insertions(+), 44 deletions(-)
--
1.8.4.2
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