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Diffstat (limited to 'Documentation/core-api/cpu_hotplug.rst')
| -rw-r--r-- | Documentation/core-api/cpu_hotplug.rst | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/Documentation/core-api/cpu_hotplug.rst b/Documentation/core-api/cpu_hotplug.rst index dcb0e379e5e8..e1b0eeabbb5e 100644 --- a/Documentation/core-api/cpu_hotplug.rst +++ b/Documentation/core-api/cpu_hotplug.rst @@ -616,7 +616,7 @@ ONLINE section for notifications on online and offline operation:: .... cpuhp_remove_instance(state, &inst2->node); .... - remove_multi_state(state); + cpuhp_remove_multi_state(state); Testing of hotplug states @@ -737,8 +737,9 @@ can process the event further. When changes to the CPUs in the system occur, the sysfs file /sys/devices/system/cpu/crash_hotplug contains '1' if the kernel -updates the kdump capture kernel list of CPUs itself (via elfcorehdr), -or '0' if userspace must update the kdump capture kernel list of CPUs. +updates the kdump capture kernel list of CPUs itself (via elfcorehdr and +other relevant kexec segment), or '0' if userspace must update the kdump +capture kernel list of CPUs. The availability depends on the CONFIG_HOTPLUG_CPU kernel configuration option. @@ -750,8 +751,9 @@ file can be used in a udev rule as follows: SUBSYSTEM=="cpu", ATTRS{crash_hotplug}=="1", GOTO="kdump_reload_end" For a CPU hot un/plug event, if the architecture supports kernel updates -of the elfcorehdr (which contains the list of CPUs), then the rule skips -the unload-then-reload of the kdump capture kernel. +of the elfcorehdr (which contains the list of CPUs) and other relevant +kexec segments, then the rule skips the unload-then-reload of the kdump +capture kernel. Kernel Inline Documentations Reference ====================================== |