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| author | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-05-16 17:55:38 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-05-26 12:17:54 +0200 |
| commit | f29021b29a85701c08afadfd51d87163fb078059 (patch) | |
| tree | b3d0bd17f97ae92c1c70031704ddf833b3bd8a7f /fs | |
| parent | 815a51c74ad14864d0a8fff5eea983819c18feae (diff) | |
| download | linux-f29021b29a85701c08afadfd51d87163fb078059.tar.bz2 | |
Btrfs: add tree mod log to fs_info
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/ctree.h | 9 | ||||
| -rw-r--r-- | fs/btrfs/disk-io.c | 5 |
2 files changed, 14 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index e0da6dbeb570..01639e100045 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1129,6 +1129,15 @@ struct btrfs_fs_info { spinlock_t delayed_iput_lock; struct list_head delayed_iputs; + /* this protects tree_mod_seq_list */ + spinlock_t tree_mod_seq_lock; + atomic_t tree_mod_seq; + struct list_head tree_mod_seq_list; + + /* this protects tree_mod_log */ + rwlock_t tree_mod_log_lock; + struct rb_root tree_mod_log; + atomic_t nr_async_submits; atomic_t async_submit_draining; atomic_t nr_async_bios; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index f43307492518..f51ad8477f18 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1914,11 +1914,14 @@ int open_ctree(struct super_block *sb, spin_lock_init(&fs_info->delayed_iput_lock); spin_lock_init(&fs_info->defrag_inodes_lock); spin_lock_init(&fs_info->free_chunk_lock); + spin_lock_init(&fs_info->tree_mod_seq_lock); + rwlock_init(&fs_info->tree_mod_log_lock); mutex_init(&fs_info->reloc_mutex); init_completion(&fs_info->kobj_unregister); INIT_LIST_HEAD(&fs_info->dirty_cowonly_roots); INIT_LIST_HEAD(&fs_info->space_info); + INIT_LIST_HEAD(&fs_info->tree_mod_seq_list); btrfs_mapping_init(&fs_info->mapping_tree); btrfs_init_block_rsv(&fs_info->global_block_rsv); btrfs_init_block_rsv(&fs_info->delalloc_block_rsv); @@ -1931,12 +1934,14 @@ int open_ctree(struct super_block *sb, atomic_set(&fs_info->async_submit_draining, 0); atomic_set(&fs_info->nr_async_bios, 0); atomic_set(&fs_info->defrag_running, 0); + atomic_set(&fs_info->tree_mod_seq, 0); fs_info->sb = sb; fs_info->max_inline = 8192 * 1024; fs_info->metadata_ratio = 0; fs_info->defrag_inodes = RB_ROOT; fs_info->trans_no_join = 0; fs_info->free_chunk_space = 0; + fs_info->tree_mod_log = RB_ROOT; /* readahead state */ INIT_RADIX_TREE(&fs_info->reada_tree, GFP_NOFS & ~__GFP_WAIT); |