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erofs: implement 48-bit block addressing for unencoded inodes

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It adapts the on-disk changes from the previous commit.  It also
supports EROFS_NULL_ADDR (all 1's) for EROFS_INODE_FLAT_PLAIN inodes
to indicate 0-filled inodes, as it's common for composefs use cases.
As a result, EROFS_INODE_CHUNK_BASED is no longer needed.

Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Acked-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20250310095459.2620647-5-hsiangkao@linux.alibaba.com
This commit is contained in:
Gao Xiang 2025-03-10 17:54:54 +08:00
commit 2e1473d519
7 changed files with 53 additions and 26 deletions
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