linux-kernel - Re: [RFC PATCHv5 0/6] zram: introduce writeback bio batching

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <tencent_7F5D453FDCFFE315AE59E73779635F865D08@qq.com>
Date: Fri, 21 Nov 2025 15:44:59 +0800
From: Yuwen Chen <ywen.chen@...mail.com>
To: senozhatsky@...omium.org
Cc: akpm@...ux-foundation.org,
	bgeffon@...gle.com,
	licayy@...look.com,
	linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	minchan@...nel.org,
	richardycc@...gle.com,
	ywen.chen@...mail.com
Subject: Re: [RFC PATCHv5 0/6] zram: introduce writeback bio batching

On Fri, 21 Nov 2025 16:32:27 +0900, Sergey Senozhatsky wrote:
> Is "before" blk-plug based approach and "after" this new approach?

Sorry, I got the before and after mixed up.

In addition, I also have some related questions to consult:

1. Will page fault exceptions be delayed during the writeback processing?
2. Since the loop device uses a work queue to handle requests, when
the system load is relatively high, will it have a relatively large
impact on the latency of page fault exceptions? Is there any way to solve
this problem?