1118 	struct btrfs_subvolume_writers *writers;  in btrfs_alloc_subvolume_writers()  local
1121 	writers = kmalloc(sizeof(*writers), GFP_NOFS);  in btrfs_alloc_subvolume_writers()
1122 	if (!writers)  in btrfs_alloc_subvolume_writers()
1125 	ret = percpu_counter_init(&writers->counter, 0, GFP_NOFS);  in btrfs_alloc_subvolume_writers()
1127 		kfree(writers);  in btrfs_alloc_subvolume_writers()
1131 	init_waitqueue_head(&writers->wait);  in btrfs_alloc_subvolume_writers()
1132 	return writers;  in btrfs_alloc_subvolume_writers()
1136 btrfs_free_subvolume_writers(struct btrfs_subvolume_writers *writers)  in btrfs_free_subvolume_writers()  argument
1138 	percpu_counter_destroy(&writers->counter);  in btrfs_free_subvolume_writers()
1139 	kfree(writers);  in btrfs_free_subvolume_writers()
1468 	struct btrfs_subvolume_writers *writers;  in btrfs_init_fs_root()  local
1478 	writers = btrfs_alloc_subvolume_writers();  in btrfs_init_fs_root()
1479 	if (IS_ERR(writers)) {  in btrfs_init_fs_root()
1480 		ret = PTR_ERR(writers);  in btrfs_init_fs_root()
1483 	root->subv_writers = writers;  in btrfs_init_fs_root()