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author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2015-04-20 09:53:50 +0800 |
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committer | Chris Mason <clm@fb.com> | 2015-06-10 09:26:23 -0700 |
commit | 9086db86e0b09c39abead4d747119695553e3978 (patch) | |
tree | 26cba099d0d7c8209e036024f70b32d3bd2615e0 /fs/btrfs/delayed-ref.h | |
parent | d4b804045924d7f8d2ea988be22c4b9e6492ec11 (diff) | |
download | linux-9086db86e0b09c39abead4d747119695553e3978.tar.bz2 |
btrfs: qgroup: Add the ability to skip given qgroup for old/new_roots.
This is used by later qgroup fix patches for snapshot.
As current snapshot accounting is done by btrfs_qgroup_inherit(), but
new extent oriented quota mechanism will account extent from
btrfs_copy_root() and other snapshot things, causing wrong result.
So add this ability to handle snapshot accounting.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/delayed-ref.h')
-rw-r--r-- | fs/btrfs/delayed-ref.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h index 4016f963599e..13fb5e6090fe 100644 --- a/fs/btrfs/delayed-ref.h +++ b/fs/btrfs/delayed-ref.h @@ -175,6 +175,14 @@ struct btrfs_delayed_ref_root { int flushing; u64 run_delayed_start; + + /* + * To make qgroup to skip given root. + * This is for snapshot, as btrfs_qgroup_inherit() will manully + * modify counters for snapshot and its source, so we should skip + * the snapshot in new_root/old_roots or it will get calculated twice + */ + u64 qgroup_to_skip; }; extern struct kmem_cache *btrfs_delayed_ref_head_cachep; |