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OpenCloudOS-Kernel
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Btrfs: qgroup state and initialization 

Add state to fs_info.

Signed-off-by: Arne Jansen <sensille@gmx.net>
This commit is contained in:
Arne Jansen 2011-09-13 12:56:09 +02:00 committed by Jan Schmidt
parent 20897f5c86
commit 416ac51da9
2 changed files with 31 additions and 0 deletions
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24
fs/btrfs/ctree.h
View File

@ -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;

7
fs/btrfs/disk-io.c
View File

@ -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);