bug about set idxNew in Set function

[luozhiyun993]

func (b *bucket) Set(k, v []byte, h uint64) {
	...
    b.mu.Lock()
	idx := b.idx
	idxNew := idx + kvLen
	chunkIdx := idx / chunkSize
	chunkIdxNew := idxNew / chunkSize
	if chunkIdxNew > chunkIdx { 
		if chunkIdxNew >= uint64(len(b.chunks)) { 
			idx = 0
			idxNew = kvLen
			chunkIdx = 0
			b.gen++ 
			if b.gen&((1<<genSizeBits)-1) == 0 {
				b.gen++
			}
		} else {
            //actually idx = idxNew
			idx = chunkIdxNew * chunkSize
            //bug here: repeat set idxNew = chunkIdxNew * chunkSize + kvlen
			idxNew = idx + kvLen
			chunkIdx = chunkIdxNew
		} 
		b.chunks[chunkIdx] = b.chunks[chunkIdx][:0]
	}
    ...
    // set idxNew
    b.idx = idxNew
}

i mark the bug in the comment. In the else block repeat set idxNew cause need to waste kvLen bytes memory.

[luozhiyun993]

forget it