linux-kernel - Re: [PATCH] zram: support asynchronous writeback

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Message-ID: <79527b0e-4a04-4f77-b78f-ce7ec7a57546@kernel.dk>
Date: Wed, 18 Jun 2025 09:08:54 -0600
From: Jens Axboe <axboe@...nel.dk>
To: Richard Chang <richardycc@...gle.com>, Minchan Kim <minchan@...nel.org>,
 Sergey Senozhatsky <senozhatsky@...omium.org>
Cc: bgeffon@...gle.com, liumartin@...gle.com, linux-kernel@...r.kernel.org,
 linux-block@...r.kernel.org
Subject: Re: [PATCH] zram: support asynchronous writeback

On 6/18/25 7:26 AM, Richard Chang wrote:
> This commit introduces asynchronous writeback to zram, improving the
> idle writeback speed.
> 
> Key changes include:
> 
> * Replacing `submit_bio_wait()` with `submit_bio()` to enable
>   non-blocking writeback operations.
> * Utilizing a dedicated kthread for post-writeback tasks, avoiding
>   potential lock contention in interrupt context.
> * Refactoring writeback-related code into a separate file `zram_wb.c`,
>   for better organization and maintainability.

This kind of laundry list is a clear sign that this should be a series
of patches, not one big patch.

-- 
Jens Axboe