Re: initramfs: "crc" cpio format and INITRAMFS_PRESERVE_MTIME

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On Tue, 14 Dec 2021 00:20:03 +0100, David Disseldorp wrote:

> This patchset does some minor initramfs refactoring and allows cpio
> entry mtime preservation to be disabled via a new Kconfig
> INITRAMFS_PRESERVE_MTIME option.
> Patches 3/5 to 5/5 implement support for creation and extraction of
> "crc" cpio archives, which carry file data checksums. Basic tests for
> this functionality can be found at
> Link: https://github.com/rapido-linux/rapido/pull/163
> 
> Changes since v4, following feedback from Matthew Wilcox:
> - implement cpio "crc" archive creation and extraction
> - add patch to fix gen_init_cpio short read handling
> - drop now-unnecessary "crc" documentation and error msg changes

Ping, any feedback on this round?

Thanks, David

> Changes since v3, following feedback from Martin Wilck:
> - 4/4: keep vfs_utimes() call in do_copy() path
>   + drop [PATCH v3 4/5] initramfs: use do_utime() wrapper consistently
>   + add do_utime_path() helper
>   + clean up timespec64 initialisation
> - 4/4: move all mtime preservation logic to initramfs_mtime.h and drop
>   separate .c
> - 4/4: improve commit message
> 
> 
>  init/Kconfig           | 10 +++++
>  init/initramfs.c       | 89 +++++++++++++++-------------------------
>  init/initramfs_mtime.h | 50 +++++++++++++++++++++++
>  usr/gen_init_cpio.c    | 92 ++++++++++++++++++++++++++++++------------
>  4 files changed, 159 insertions(+), 82 deletions(-)



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