dprint(DBG_BITMAP, "block_allocate: %u,%u,%u\n", size, offset, len);
mutex_lock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
mapping = HFSPLUS_SB(sb).alloc_file->i_mapping;
dprint(DBG_BITMAP, "block_allocate: %u,%u,%u\n", size, offset, len);
mutex_lock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
mapping = HFSPLUS_SB(sb).alloc_file->i_mapping;