linux-kernel - Re: [f2fs-dev] [PATCH v4] f2fs-tools: revert summary entry count from 2048 to 512 in 16kb block support

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Message-ID: <84a7c83b-529a-4fca-a5d0-4d2015bdeeab@kernel.org>
Date: Wed, 5 Nov 2025 17:42:45 +0800
From: Chao Yu <chao@...nel.org>
To: Daeho Jeong <daeho43@...il.com>, linux-kernel@...r.kernel.org,
 linux-f2fs-devel@...ts.sourceforge.net, kernel-team@...roid.com
Cc: chao@...nel.org, Daeho Jeong <daehojeong@...gle.com>
Subject: Re: [f2fs-dev] [PATCH v4] f2fs-tools: revert summary entry count from
 2048 to 512 in 16kb block support

On 11/5/25 00:22, Daeho Jeong wrote:
> From: Daeho Jeong <daehojeong@...gle.com>
> 
> The recent increase in the number of Segment Summary Area (SSA) entries
> from 512 to 2048 was an unintentional change in logic of 16kb block
> support. This commit corrects the issue.
> 
> To better utilize the space available from the erroneous 2048-entry
> calculation, we are implementing a solution to share the currently
> unused SSA space with neighboring segments. This enhances overall
> SSA utilization without impacting the established 8MB segment size.
> 
> Fixes: 50fd00b168d7 ("f2fs-tools: Support different block sizes")
> Signed-off-by: Daeho Jeong <daehojeong@...gle.com>

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

Thanks,