linux-kernel - Re: [PATCH] erofs: tidy up synchronous decompression

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Message-ID: <ba295eb7-000d-4af7-bb8c-1db5aea30460@kernel.org>
Date: Mon, 12 Jan 2026 17:16:49 +0800
From: Chao Yu <chao@...nel.org>
To: Gao Xiang <hsiangkao@...ux.alibaba.com>, linux-erofs@...ts.ozlabs.org
Cc: chao@...nel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] erofs: tidy up synchronous decompression

On 1/12/2026 11:43 AM, Gao Xiang wrote:
>   - Get rid of `sbi->opt.max_sync_decompress_pages` since it's fixed as
>     3 all the time;
> 
>   - Add Z_EROFS_MAX_SYNC_DECOMPRESS_BYTES in bytes instead of in pages,
>     since for non-4K pages, 3-page limitation makes no sense;
> 
>   - Move `sync_decompress` to sbi to avoid unexpected remount impact;
> 
>   - Fold z_erofs_is_sync_decompress() into its caller;
> 
>   - Better description of sysfs entry `sync_decompress`.
> 
> Signed-off-by: Gao Xiang <hsiangkao@...ux.alibaba.com>

Reviewed-by: Chao Yu <chao@...nel.org>

Thanks,