Subject: Re: [PATCH v6 0/3] kexec: reorganize kexec and kdump sysfs

From: Baoquan he <[email-masked]>
Date: Fri, 21 Nov 2025 11:23:07 +0800

On 11/18/25 at 05:15pm, Sourabh Jain wrote:
> All existing kexec and kdump sysfs entries are moved to a new location,
> /sys/kernel/kexec, to keep /sys/kernel/ clean and better organized.
> Symlinks are created at the old locations for backward compatibility and
> can be removed in the future [01/03].
> 
> While doing this cleanup, the old kexec and kdump sysfs entries are
> marked as deprecated in the existing ABI documentation [02/03]. This
> makes it clear that these older interfaces should no longer be used.
> New ABI documentation is added to describe the reorganized interfaces
> [03/03], so users and tools can rely on the updated sysfs interfaces
> going forward.
> 
> Changlog:
> ---------
> 
> v4 -> v5:
>  https://lore.kernel.org/all/[email-masked]/
>  - Splitted patch series from the above patch series
> 
> v5 -> v6:
>  - Move /sys/kernel/kexec_crash_cma_ranges also to new /sys/kernel/kexec node
>  - Update commit messages
> 
> Note:
> This patch series is dependent on the patches:
> https://lore.kernel.org/all/[email-masked]/
> https://lore.kernel.org/all/[email-masked]/

To the series,

Acked-by: Baoquan He <[email-masked]>

> 
> Cc: Aditya Gupta <[email-masked]>
> Cc: Andrew Morton <[email-masked]>
> Cc: Baoquan he <[email-masked]>
> Cc: Dave Young <[email-masked]>
> Cc: Hari Bathini <[email-masked]>
> Cc: Jiri Bohac <[email-masked]>
> Cc: Madhavan Srinivasan <[email-masked]>
> Cc: Mahesh J Salgaonkar <[email-masked]>
> Cc: Pingfan Liu <[email-masked]>
> Cc: Ritesh Harjani (IBM) <[email-masked]>
> Cc: Shivang Upadhyay <[email-masked]>
> Cc: Sourabh Jain <[email-masked]>
> Cc: Vivek Goyal <[email-masked]>
> Cc: [email-masked]
> Cc: [email-masked]
> 
> Sourabh Jain (3):
>   kexec: move sysfs entries to /sys/kernel/kexec
>   Documentation/ABI: mark old kexec sysfs deprecated
>   Documentation/ABI: new kexec and kdump sysfs interface
> 
>  .../ABI/obsolete/sysfs-kernel-kexec-kdump     |  71 +++++++++
>  .../ABI/testing/sysfs-kernel-kexec-kdump      |  26 ++--
>  kernel/kexec_core.c                           | 141 ++++++++++++++++++
>  kernel/ksysfs.c                               |  89 +----------
>  4 files changed, 230 insertions(+), 97 deletions(-)
>  create mode 100644 Documentation/ABI/obsolete/sysfs-kernel-kexec-kdump
> 
> -- 
> 2.51.1
>