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f2fs: revert summary entry count from 2048 to 512 in 16kb block support

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[ Upstream commit 7ee8bc3942 ]

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: d7e9a9037d ("f2fs: Support Block Size == Page Size")
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Daeho Jeong 2025-11-11 09:52:46 -08:00 • committed by Greg Kroah-Hartman
commit 6acd144fa8
8 changed files with 130 additions and 63 deletions
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