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Date:   Thu, 31 Oct 2019 19:41:54 -0400
From:   "Theodore Y. Ts'o" <>
To:     Eric Biggers <>
        Satya Tangirala <>,
        Paul Crowley <>,
        Paul Lawrence <>,
        Jaegeuk Kim <>
Subject: Re: [e2fsprogs PATCH] Support the stable_inodes feature

On Mon, Oct 21, 2019 at 04:30:43PM -0700, Eric Biggers wrote:
> From: Eric Biggers <>
> Reserve the codepoint for EXT4_FEATURE_COMPAT_STABLE_INODES, allow it to
> be set and cleared, and teach resize2fs to forbid shrinking the
> filesystem if it is set.
> This feature will allow the use of encryption policies where the inode
> number is included in the IVs (initialization vectors) for encryption,
> so data would be corrupted if the inodes were to be renumbered.
> For more details, see the kernel patchset:
> Signed-off-by: Eric Biggers <>

Thanks, I've applied this as an AOSP cherry-pick.  (I've also
synchronized the upstream e2fsprogs git repo with the AOSP e2fsprogs
repo as of 43f6f573dd61 and updated go/aosp-e2fsprogs-reconciliation.
This commit is on the master branch, although the other AOSP commits,
being bug fixes, were landed first on the maint branch and then merged
into master.)

					- Ted

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