From: Andrew Morton <akpm@linux-foundation.org>
To: Eric Biggers <ebiggers@kernel.org>
Cc: Andrey Albershteyn <aalbersh@redhat.com>,
linux-f2fs-devel@lists.sourceforge.net,
linux-xfs@vger.kernel.org, linux-fscrypt@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
linux-btrfs@vger.kernel.org
Subject: Re: [f2fs-dev] [PATCH v2 10/11] fs/buffer.c: support fsverity in block_read_full_folio()
Date: Mon, 9 Jan 2023 18:37:59 -0800 [thread overview]
Message-ID: <20230109183759.c1e469f5f2181e9988f10131@linux-foundation.org> (raw)
In-Reply-To: <20221223203638.41293-11-ebiggers@kernel.org>
On Fri, 23 Dec 2022 12:36:37 -0800 Eric Biggers <ebiggers@kernel.org> wrote:
> After each filesystem block (as represented by a buffer_head) has been
> read from disk by block_read_full_folio(), verify it if needed. The
> verification is done on the fsverity_read_workqueue. Also allow reads
> of verity metadata past i_size, as required by ext4.
Sigh. Do we reeeeealy need to mess with buffer.c in this fashion? Did
any other subsystems feel a need to do this?
> This is needed to support fsverity on ext4 filesystems where the
> filesystem block size is less than the page size.
Does any real person actually do this?
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next prev parent reply other threads:[~2023-01-10 2:55 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-23 20:36 [f2fs-dev] [PATCH v2 00/11] fsverity: support for non-4K pages Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 01/11] fsverity: use unsigned long for level_start Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 02/11] fsverity: simplify Merkle tree readahead size calculation Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 03/11] fsverity: store log2(digest_size) precomputed Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 04/11] fsverity: use EFBIG for file too large to enable verity Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 05/11] fsverity: replace fsverity_hash_page() with fsverity_hash_block() Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 06/11] fsverity: support verification with tree block size < PAGE_SIZE Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 07/11] fsverity: support enabling " Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 08/11] ext4: simplify ext4_readpage_limit() Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 09/11] f2fs: simplify f2fs_readpage_limit() Eric Biggers
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 10/11] fs/buffer.c: support fsverity in block_read_full_folio() Eric Biggers
2023-01-10 2:37 ` Andrew Morton [this message]
2023-01-10 3:05 ` Eric Biggers
2023-01-20 19:56 ` Eric Biggers
2023-01-21 6:39 ` Christoph Hellwig
2022-12-23 20:36 ` [f2fs-dev] [PATCH v2 11/11] ext4: allow verity with fs block size < PAGE_SIZE Eric Biggers
2023-01-04 6:38 ` [f2fs-dev] [PATCH v2 00/11] fsverity: support for non-4K pages Ojaswin Mujoo via Linux-f2fs-devel
2023-01-04 7:25 ` Eric Biggers
2023-01-05 11:24 ` Ojaswin Mujoo via Linux-f2fs-devel
2023-01-09 17:38 ` Eric Biggers
2023-01-09 19:34 ` Andrey Albershteyn
2023-01-10 3:10 ` Eric Biggers
2023-02-03 22:01 ` Eric Biggers
2023-02-28 1:01 ` patchwork-bot+f2fs
2023-02-28 1:30 ` Eric Biggers
2023-02-28 3:53 ` Jaegeuk Kim
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