openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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 <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Dongsheng Yang 2014-11-20 20:14:38 -05:00 committed by Chris Mason
parent c99f1b0c6c
commit 3eeb4d597e
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
fs/btrfs/qgroup.c
View File

@ -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);
}