From c91c6062d6cd1bc366efb04973ee449c30398a49 Mon Sep 17 00:00:00 2001 From: Sourabh Jain Date: Mon, 12 Aug 2024 09:46:51 +0530 Subject: Document/kexec: generalize crash hotplug description Commit 79365026f869 ("crash: add a new kexec flag for hotplug support") generalizes the crash hotplug support to allow architectures to update multiple kexec segments on CPU/Memory hotplug and not just elfcorehdr. Therefore, update the relevant kernel documentation to reflect the same. No functional change. Link: https://lkml.kernel.org/r/20240812041651.703156-1-sourabhjain@linux.ibm.com Signed-off-by: Sourabh Jain Reviewed-by: Petr Tesarik Acked-by: Baoquan He Cc: Hari Bathini Cc: Petr Tesarik Cc: Sourabh Jain Cc: Jonathan Corbet Signed-off-by: Andrew Morton --- Documentation/ABI/testing/sysfs-devices-memory | 6 +++--- Documentation/ABI/testing/sysfs-devices-system-cpu | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-devices-memory b/Documentation/ABI/testing/sysfs-devices-memory index a95e0f17c35a..cec65827e602 100644 --- a/Documentation/ABI/testing/sysfs-devices-memory +++ b/Documentation/ABI/testing/sysfs-devices-memory @@ -115,6 +115,6 @@ What: /sys/devices/system/memory/crash_hotplug Date: Aug 2023 Contact: Linux kernel mailing list Description: - (RO) indicates whether or not the kernel directly supports - modifying the crash elfcorehdr for memory hot un/plug and/or - on/offline changes. + (RO) indicates whether or not the kernel updates relevant kexec + segments on memory hot un/plug and/or on/offline events, avoiding the + need to reload kdump kernel. diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index de725ca3be82..206079d3bd5b 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -704,9 +704,9 @@ What: /sys/devices/system/cpu/crash_hotplug Date: Aug 2023 Contact: Linux kernel mailing list Description: - (RO) indicates whether or not the kernel directly supports - modifying the crash elfcorehdr for CPU hot un/plug and/or - on/offline changes. + (RO) indicates whether or not the kernel updates relevant kexec + segments on memory hot un/plug and/or on/offline events, avoiding the + need to reload kdump kernel. What: /sys/devices/system/cpu/enabled Date: Nov 2022 -- cgit v1.2.3