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authorMiao Xie <miaox@cn.fujitsu.com>2013-02-28 11:04:33 +0100
committerJosef Bacik <jbacik@fusionio.com>2013-02-28 19:33:54 +0100
commitd5c1207017cd8387b4d3224dd7ab6cf5cd7f1c9a (patch)
tree7208d1c89aa625fa6eb349fdafa2e49a00bbe078 /fs/btrfs/transaction.h
parentBtrfs: remove unnecessary dget_parent/dput when creating the pending snapshot (diff)
downloadlinux-d5c1207017cd8387b4d3224dd7ab6cf5cd7f1c9a.tar.xz
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Btrfs: fix wrong reserved space in qgroup during snap/subv creation
There are two problems in the space reservation of the snapshot/ subvolume creation. - don't reserve the space for the root item insertion - the space which is reserved in the qgroup is different with the free space reservation. we need reserve free space for 7 items, but in qgroup reservation, we need reserve space only for 3 items. So we implement new metadata reservation functions for the snapshot/subvolume creation. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/transaction.h')
-rw-r--r--fs/btrfs/transaction.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 5f67fba07ab4..3c8e0d25c8e4 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -90,6 +90,7 @@ struct btrfs_pending_snapshot {
struct btrfs_qgroup_inherit *inherit;
/* block reservation for the operation */
struct btrfs_block_rsv block_rsv;
+ u64 qgroup_reserved;
/* extra metadata reseration for relocation */
int error;
bool readonly;