[PATCH v5 0/3] kexec: reorganize kexec and kdump sysfs

[Sourabh Jain]

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 layout going
forward.

Changlog:
---------

v4 -> v5:
 https://lore.kernel.org/all/20251114152550.ac2dd5e23542f09c62defec7@xxxxxxxxxxxxxxxxxxxx/
 - Splitted patch series from the above patch series

Note:
This patch series is dependent on the patches:
https://lore.kernel.org/all/20251117035153.1199665-1-sourabhjain@xxxxxxxxxxxxx/
https://lore.kernel.org/all/20251117041905.1277801-1-sourabhjain@xxxxxxxxxxxxx/

Cc: Aditya Gupta <adityag@xxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Baoquan he <bhe@xxxxxxxxxx>
Cc: Dave Young <dyoung@xxxxxxxxxx>
Cc: Hari Bathini <hbathini@xxxxxxxxxxxxx>
Cc: Jiri Bohac <jbohac@xxxxxxx>
Cc: Madhavan Srinivasan <maddy@xxxxxxxxxxxxx>
Cc: Mahesh J Salgaonkar <mahesh@xxxxxxxxxxxxx>
Cc: Pingfan Liu <piliu@xxxxxxxxxx>
Cc: Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx>
Cc: Shivang Upadhyay <shivangu@xxxxxxxxxxxxx>
Cc: Sourabh Jain <sourabhjains@xxxxxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Cc: kexec@lists.infradea

Sourabh Jain (3):
  kexec: move sysfs entries to /sys/kernel/kexec
  Documentation/ABI: mark old kexec sysfs deprecated
  kexec: document new kexec and kdump sysfs ABIs

 .../ABI/obsolete/sysfs-kernel-kexec-kdump     | 59 ++++++++++++
 .../ABI/testing/sysfs-kernel-kexec-kdump      | 24 +++--
 kernel/kexec_core.c                           | 91 ++++++++++++++++++-
 kernel/ksysfs.c                               | 68 +-------------
 4 files changed, 166 insertions(+), 76 deletions(-)
 create mode 100644 Documentation/ABI/obsolete/sysfs-kernel-kexec-kdump

-- 
2.51.1