Currently, when we snapshot a subvol, snapshot will not copy the limits
from srcqgroup.
This patch make the qgroup in snapshot inherit the limit info when create
a snapshot.
Signed-off-by: Dongsheng Yang <yangds.f...@cn.fujitsu.com>
---
fs/btrfs/qgroup.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 97159a8..b2cee33 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2302,6 +2302,14 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle
*trans,
dstgroup->excl_cmpr = level_size;
srcgroup->excl = level_size;
srcgroup->excl_cmpr = level_size;
+
+ /* inherit the limit info */
+ dstgroup->lim_flags = srcgroup->lim_flags;
+ dstgroup->max_rfer = srcgroup->max_rfer;
+ dstgroup->max_excl = srcgroup->max_excl;
+ dstgroup->rsv_rfer = srcgroup->rsv_rfer;
+ dstgroup->rsv_excl = srcgroup->rsv_excl;
+
qgroup_dirty(fs_info, dstgroup);
qgroup_dirty(fs_info, srcgroup);
}
--
1.8.4.2
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