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| author | Arne Jansen <sensille@gmx.net> | 2011-09-13 12:56:09 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-07-10 15:14:44 +0200 |
| commit | 416ac51da90e98daaac17e1f359a6c5591f7f5bd (patch) | |
| tree | 44dd89f08ef1fe9a0f90917beb3df1f066bc1901 /fs | |
| parent | 20897f5c86b9d2b77baea1d48eda7fa4ac217279 (diff) | |
| download | lwn-416ac51da90e98daaac17e1f359a6c5591f7f5bd.tar.gz lwn-416ac51da90e98daaac17e1f359a6c5591f7f5bd.zip | |
Btrfs: qgroup state and initialization
Add state to fs_info.
Signed-off-by: Arne Jansen <sensille@gmx.net>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/ctree.h | 24 | ||||
| -rw-r--r-- | fs/btrfs/disk-io.c | 7 |
2 files changed, 31 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 27cf995564ed..a5269d4a164f 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1120,6 +1120,7 @@ struct btrfs_fs_info { struct btrfs_root *dev_root; struct btrfs_root *fs_root; struct btrfs_root *csum_root; + struct btrfs_root *quota_root; /* the log root tree is a directory of all the other log roots */ struct btrfs_root *log_root_tree; @@ -1374,6 +1375,29 @@ struct btrfs_fs_info { #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY u32 check_integrity_print_mask; #endif + /* + * quota information + */ + unsigned int quota_enabled:1; + + /* + * quota_enabled only changes state after a commit. This holds the + * next state. + */ + unsigned int pending_quota_state:1; + + /* is qgroup tracking in a consistent state? */ + u64 qgroup_flags; + + /* holds configuration and tracking. Protected by qgroup_lock */ + struct rb_root qgroup_tree; + spinlock_t qgroup_lock; + + /* list of dirty qgroups to be written at next commit */ + struct list_head dirty_qgroups; + + /* used by btrfs_qgroup_record_ref for an efficient tree traversal */ + u64 qgroup_seq; /* filesystem state */ u64 fs_state; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 6fc243eccffa..eca054974425 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2110,6 +2110,13 @@ int open_ctree(struct super_block *sb, init_rwsem(&fs_info->cleanup_work_sem); init_rwsem(&fs_info->subvol_sem); + spin_lock_init(&fs_info->qgroup_lock); + fs_info->qgroup_tree = RB_ROOT; + INIT_LIST_HEAD(&fs_info->dirty_qgroups); + fs_info->qgroup_seq = 1; + fs_info->quota_enabled = 0; + fs_info->pending_quota_state = 0; + btrfs_init_free_cluster(&fs_info->meta_alloc_cluster); btrfs_init_free_cluster(&fs_info->data_alloc_cluster); |