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| author | Arne Jansen <sensille@gmx.net> | 2011-05-23 14:30:00 +0200 |
|---|---|---|
| committer | Arne Jansen <sensille@gmx.net> | 2011-10-02 08:48:30 +0200 |
| commit | 90519d66abbccc251d14719ac76f191f70826e40 (patch) | |
| tree | 93cad519db9f4f0c97abd89d405ea1e0fec306a7 /fs/btrfs/volumes.h | |
| parent | ab0fff03055d2d1b01a7581badeba18db9c4f55c (diff) | |
btrfs: state information for readahead
Add state information for readahead to btrfs_fs_info and btrfs_device
Changes v2:
- don't wait in radix_trees
- add own set of workers for readahead
Reviewed-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Arne Jansen <sensille@gmx.net>
Diffstat (limited to 'fs/btrfs/volumes.h')
| -rw-r--r-- | fs/btrfs/volumes.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 6d866db4e17..2a751246188 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -92,6 +92,14 @@ struct btrfs_device { struct btrfs_work work; struct rcu_head rcu; struct work_struct rcu_work; + + /* readahead state */ + spinlock_t reada_lock; + atomic_t reada_in_flight; + u64 reada_next; + struct reada_zone *reada_curr_zone; + struct radix_tree_root reada_zones; + struct radix_tree_root reada_extents; }; struct btrfs_fs_devices { |