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Documentation/ABI: mark old kexec sysfs deprecated

The previous commit ("kexec: move sysfs entries to /sys/kernel/kexec")
moved all existing kexec sysfs entries to a new location. The ABI
document is updated to include a note about the deprecation of the old
kexec sysfs entries.

The following kexec sysfs entries are deprecated:
- /sys/kernel/kexec_loaded
- /sys/kernel/kexec_crash_loaded
- /sys/kernel/kexec_crash_size
- /sys/kernel/crash_elfcorehdr_size
- /sys/kernel/kexec_crash_cma_ranges

Link: https://lkml.kernel.org/r/20251118114507.1769455-3-sourabhjain@linux.ibm.com
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Aditya Gupta <adityag@linux.ibm.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Jiri Bohac <jbohac@suse.cz>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mahesh J Salgaonkar <mahesh@linux.ibm.com>
Cc: Pingfan Liu <piliu@redhat.com>
Cc: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Cc: Shivang Upadhyay <shivangu@linux.ibm.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

authored by

Sourabh Jain and committed by
Andrew Morton 5c991b6d cf4340bd

+18
+18
Documentation/ABI/testing/sysfs-kernel-kexec-kdump Documentation/ABI/obsolete/sysfs-kernel-kexec-kdump
··· 1 + NOTE: all the ABIs listed in this file are deprecated and will be removed after 2028. 2 + 3 + Here are the alternative ABIs: 4 + +------------------------------------+-----------------------------------------+ 5 + | Deprecated | Alternative | 6 + +------------------------------------+-----------------------------------------+ 7 + | /sys/kernel/kexec_loaded | /sys/kernel/kexec/loaded | 8 + +------------------------------------+-----------------------------------------+ 9 + | /sys/kernel/kexec_crash_loaded | /sys/kernel/kexec/crash_loaded | 10 + +------------------------------------+-----------------------------------------+ 11 + | /sys/kernel/kexec_crash_size | /sys/kernel/kexec/crash_size | 12 + +------------------------------------+-----------------------------------------+ 13 + | /sys/kernel/crash_elfcorehdr_size | /sys/kernel/kexec/crash_elfcorehdr_size | 14 + +------------------------------------+-----------------------------------------+ 15 + | /sys/kernel/kexec_crash_cma_ranges | /sys/kernel/kexec/crash_cma_ranges | 16 + +------------------------------------+-----------------------------------------+ 17 + 18 + 1 19 What: /sys/kernel/kexec_loaded 2 20 Date: Jun 2006 3 21 Contact: kexec@lists.infradead.org