1109 	struct btrfs_subvolume_writers *writers;  in btrfs_alloc_subvolume_writers()  local
1112 	writers = kmalloc(sizeof(*writers), GFP_NOFS);  in btrfs_alloc_subvolume_writers()
1113 	if (!writers)  in btrfs_alloc_subvolume_writers()
1116 	ret = percpu_counter_init(&writers->counter, 0, GFP_NOFS);  in btrfs_alloc_subvolume_writers()
1118 		kfree(writers);  in btrfs_alloc_subvolume_writers()
1122 	init_waitqueue_head(&writers->wait);  in btrfs_alloc_subvolume_writers()
1123 	return writers;  in btrfs_alloc_subvolume_writers()
1127 btrfs_free_subvolume_writers(struct btrfs_subvolume_writers *writers)  in btrfs_free_subvolume_writers()  argument
1129 	percpu_counter_destroy(&writers->counter);  in btrfs_free_subvolume_writers()
1130 	kfree(writers);  in btrfs_free_subvolume_writers()
1469 	struct btrfs_subvolume_writers *writers;  in btrfs_init_fs_root()  local
1479 	writers = btrfs_alloc_subvolume_writers();  in btrfs_init_fs_root()
1480 	if (IS_ERR(writers)) {  in btrfs_init_fs_root()
1481 		ret = PTR_ERR(writers);  in btrfs_init_fs_root()
1484 	root->subv_writers = writers;  in btrfs_init_fs_root()