diff options
| author | Miao Xie <miaox@cn.fujitsu.com> | 2013-05-15 07:48:23 (GMT) |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-06-14 15:29:41 (GMT) |
| commit | 199c2a9c3d1389db7f7a211e64f6809d352ce5f6 (patch) | |
| tree | 8f1e921492d1d5a7b61d98900e8cb3b1b40abdba /fs/btrfs/ctree.h | |
| parent | eb73c1b7cea7d533288ef5297a0ea0e159db85b0 (diff) | |
| download | linux-199c2a9c3d1389db7f7a211e64f6809d352ce5f6.tar.xz | |
Btrfs: introduce per-subvolume ordered extent list
The reason we introduce per-subvolume ordered extent list is the same
as the per-subvolume delalloc inode list.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 43c0735..905f7c6 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1437,17 +1437,18 @@ struct btrfs_fs_info { atomic_t open_ioctl_trans; /* - * this is used by the balancing code to wait for all the pending - * ordered extents + * this is used to protect the following list -- ordered_roots. */ - spinlock_t ordered_extent_lock; + spinlock_t ordered_root_lock; /* - * all of the data=ordered extents pending writeback + * all fs/file tree roots in which there are data=ordered extents + * pending writeback are added into this list. + * * these can span multiple transactions and basically include * every dirty data page that isn't from nodatacow */ - struct list_head ordered_extents; + struct list_head ordered_roots; spinlock_t delalloc_root_lock; /* all fs/file tree roots that have delalloc inodes. */ @@ -1753,6 +1754,20 @@ struct btrfs_root { struct list_head delalloc_inodes; struct list_head delalloc_root; u64 nr_delalloc_inodes; + /* + * this is used by the balancing code to wait for all the pending + * ordered extents + */ + spinlock_t ordered_extent_lock; + + /* + * all of the data=ordered extents pending writeback + * these can span multiple transactions and basically include + * every dirty data page that isn't from nodatacow + */ + struct list_head ordered_extents; + struct list_head ordered_root; + u64 nr_ordered_extents; }; struct btrfs_ioctl_defrag_range_args { |