Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 3eeb4d59 authored by Dongsheng Yang's avatar Dongsheng Yang Committed by Chris Mason
Browse files

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: default avatarDongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent c99f1b0c

fs/btrfs/qgroup.c

+8 −0
Original line number Diff line number Diff line
@@ -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);

	}