Re: [PATCHv3 1/4] zram: introduce writeback bio batching support

[Yuwen Chen]

On Tue, 18 Nov 2025 11:18:56 +0800, Yuwen Chen wrote:
>> +	/*
>> +	 * We release slot lock during writeback so slot can change under us:
>> +	 * slot_free() or slot_free() and zram_write_page(). In both cases
>> +	 * slot loses ZRAM_PP_SLOT flag. No concurrent post-processing can
>> +	 * set ZRAM_PP_SLOT on such slots until current post-processing
>> +	 * finishes.
>> +	 */
>> +	if (!zram_test_flag(zram, index, ZRAM_PP_SLOT))
>> +		goto out;
>In this place, the index may be leaked.

To be precise, blk_idx may be leaked.