btrfs: qgroup: remove obsolete fs_info members

The commit fcebe4562dec ("Btrfs: rework qgroup accounting") reworked
qgroups and added some new structures. Another rework of qgroup
mechanics e69bcee37692 ("btrfs: qgroup: Cleanup the old
ref_node-oriented mechanism.") stopped using them and left uncleaned.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 1d1e124..5d85c55 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1092,10 +1092,7 @@ struct btrfs_fs_info {
 
        /* holds configuration and tracking. Protected by qgroup_lock */
        struct rb_root qgroup_tree;
-       struct rb_root qgroup_op_tree;
        spinlock_t qgroup_lock;
-       spinlock_t qgroup_op_lock;
-       atomic_t qgroup_op_seq;
 
        /*
         * used to avoid frequently calling ulist_alloc()/ulist_free()

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index b4c0709..0fa65ac 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2161,7 +2161,6 @@ static void btrfs_init_qgroup(struct btrfs_fs_info *fs_info)
        spin_lock_init(&fs_info->qgroup_lock);
        mutex_init(&fs_info->qgroup_ioctl_lock);
        fs_info->qgroup_tree = RB_ROOT;
-       fs_info->qgroup_op_tree = RB_ROOT;
        INIT_LIST_HEAD(&fs_info->dirty_qgroups);
        fs_info->qgroup_seq = 1;
        fs_info->qgroup_ulist = NULL;
@@ -2666,7 +2665,6 @@ int open_ctree(struct super_block *sb,
        spin_lock_init(&fs_info->defrag_inodes_lock);
        spin_lock_init(&fs_info->tree_mod_seq_lock);
        spin_lock_init(&fs_info->super_lock);
-       spin_lock_init(&fs_info->qgroup_op_lock);
        spin_lock_init(&fs_info->buffer_lock);
        spin_lock_init(&fs_info->unused_bgs_lock);
        rwlock_init(&fs_info->tree_mod_log_lock);
@@ -2693,7 +2691,6 @@ int open_ctree(struct super_block *sb,
 
        atomic_set(&fs_info->async_delalloc_pages, 0);
        atomic_set(&fs_info->defrag_running, 0);
-       atomic_set(&fs_info->qgroup_op_seq, 0);
        atomic_set(&fs_info->reada_works_cnt, 0);
        atomic_set(&fs_info->nr_delayed_iputs, 0);
        atomic64_set(&fs_info->tree_mod_seq, 0);

diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index 314d7bd..9238fd4 100644 (file)
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -109,7 +109,6 @@ struct btrfs_fs_info *btrfs_alloc_dummy_fs_info(u32 nodesize, u32 sectorsize)
 
        spin_lock_init(&fs_info->buffer_lock);
        spin_lock_init(&fs_info->qgroup_lock);
-       spin_lock_init(&fs_info->qgroup_op_lock);
        spin_lock_init(&fs_info->super_lock);
        spin_lock_init(&fs_info->fs_roots_radix_lock);
        spin_lock_init(&fs_info->tree_mod_seq_lock);