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Re: [PATCH] fs/ext2: Ignore checksum seed incompat feature support
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From: |
Mihai Moldovan |
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Subject: |
Re: [PATCH] fs/ext2: Ignore checksum seed incompat feature support |
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Date: |
Sat, 12 Jun 2021 15:55:57 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 |
* On 6/11/21 9:36 PM, Javier Martinez Canillas wrote:
> This incompat feature is used to denote that the filesystem stored its
> metadata checksum seed in the superblock. This is used to allow tune2fs
> to change the UUID on a mounted metadata_csum filesystem without having
> to rewrite all the disk metadata.
>
> But GRUB doesn't use the metadata checksum in anyway, so can just ignore
any way
> this feature if is enabled. This is consistent with GRUB filesystem code
if it is
> in general which just does a best effort to access the filesystem's data.
>
> It may be removed from the ignored list in the future if supports to do
> metadata checksumming verification is added to the read-only FS driver.
support
or better yet:
support for
metadata checksum verification
Mihai
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