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Date:   Tue, 28 Feb 2023 01:01:54 +0000
To:     Eric Biggers <>
Subject: Re: [f2fs-dev] [PATCH v2 00/11] fsverity: support for non-4K pages


This series was applied to jaegeuk/f2fs.git (dev)
by Eric Biggers <>:

On Fri, 23 Dec 2022 12:36:27 -0800 you wrote:
> [This patchset applies to mainline + some fsverity cleanups I sent out
>  recently.  You can get everything from tag "fsverity-non4k-v2" of
> ]
> Currently, filesystems (ext4, f2fs, and btrfs) only support fsverity
> when the Merkle tree block size, filesystem block size, and page size
> are all the same.  In practice that means 4K, since increasing the page
> size, e.g. to 16K, forces the Merkle tree block size and filesystem
> block size to be increased accordingly.  That can be impractical; for
> one, users want the same file signatures to work on all systems.
> [...]

Here is the summary with links:
  - [f2fs-dev,v2,01/11] fsverity: use unsigned long for level_start
  - [f2fs-dev,v2,02/11] fsverity: simplify Merkle tree readahead size calculation
  - [f2fs-dev,v2,03/11] fsverity: store log2(digest_size) precomputed
  - [f2fs-dev,v2,04/11] fsverity: use EFBIG for file too large to enable verity
  - [f2fs-dev,v2,05/11] fsverity: replace fsverity_hash_page() with fsverity_hash_block()
  - [f2fs-dev,v2,06/11] fsverity: support verification with tree block size < PAGE_SIZE
  - [f2fs-dev,v2,07/11] fsverity: support enabling with tree block size < PAGE_SIZE
  - [f2fs-dev,v2,08/11] ext4: simplify ext4_readpage_limit()
  - [f2fs-dev,v2,09/11] f2fs: simplify f2fs_readpage_limit()
  - [f2fs-dev,v2,10/11] fs/buffer.c: support fsverity in block_read_full_folio()
  - [f2fs-dev,v2,11/11] ext4: allow verity with fs block size < PAGE_SIZE

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