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| author |   Miao Xie <miaox@cn.fujitsu.com> | 2013-02-28 10:04:33 +0000 |
|---|---|---|
| committer |   Josef Bacik <jbacik@fusionio.com> | 2013-02-28 13:33:54 -0500 |
| commit | d5c1207017cd8387b4d3224dd7ab6cf5cd7f1c9a (patch) | |
| tree | 7208d1c89aa625fa6eb349fdafa2e49a00bbe078 /fs/btrfs/transaction.h | |
| parent | Btrfs: remove unnecessary dget_parent/dput when creating the pending snapshot (diff) | |
| download | linux-dev-d5c1207017cd8387b4d3224dd7ab6cf5cd7f1c9a.tar.xz linux-dev-d5c1207017cd8387b4d3224dd7ab6cf5cd7f1c9a.zip | |
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.h | 1 |
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; |