From 3eeb4d597efc9e068902057f1bd040cffc69e9e6 Mon Sep 17 00:00:00 2001 From: Dongsheng Yang Date: Thu, 20 Nov 2014 20:14:38 -0500 Subject: [PATCH] btrfs: qgroup: inherit limit info from srcgroup in creating snapshot. 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 Signed-off-by: Chris Mason --- fs/btrfs/qgroup.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 37188c6b408d..34c2753fa4e1 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); } -- 2.20.1