afs_put_volume
afs_put_volume(volume, afs_volume_trace_put_callback);
afs_put_volume(cell->root_volume, afs_volume_trace_put_cell_root);
afs_put_volume(op->volume, afs_volume_trace_put_put_op);
void afs_put_volume(struct afs_volume *volume, enum afs_volume_trace reason);
afs_put_volume(ctx->volume, afs_volume_trace_put_validate_fc);
afs_put_volume(as->volume, afs_volume_trace_put_destroy_sbi);
afs_put_volume(ctx->volume, afs_volume_trace_put_free_fc);
afs_put_volume(pvol, afs_volume_trace_put_query_alias);
afs_put_volume(volume, afs_volume_trace_put_query_alias);
afs_put_volume(pvol, afs_volume_trace_put_query_alias);
afs_put_volume(candidate, afs_volume_trace_put_cell_dup);