diff options

author	Thomas Gleixner <tglx@linutronix.de>	2017-01-10 14:01:05 +0100
committer	Thomas Gleixner <tglx@linutronix.de>	2017-01-16 13:20:05 +0100
commit	4205e4786d0b9fc3b4fec7b1910cf645a0468307 (patch)
tree	685ccb486409197b936c785eb9d173c3edff45a1 /include/acpi
parent	7e164ce4e8ecd7e9a58a83750bd3ee03125df154 (diff)

cpu/hotplug: Provide dynamic range for prepare stage

Mathieu reported that the LTTNG modules are broken as of 4.10-rc1 due to the removal of the cpu hotplug notifiers. Usually I don't care much about out of tree modules, but LTTNG is widely used in distros. There are two ways to solve that: 1) Reserve a hotplug state for LTTNG 2) Add a dynamic range for the prepare states. While #1 is the simplest solution, #2 is the proper one as we can convert in tree users, which do not care about ordering, to the dynamic range as well. Add a dynamic range which allows LTTNG to request states in the prepare stage. Reported-and-tested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Sewior <bigeasy@linutronix.de> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701101353010.3401@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Diffstat (limited to 'include/acpi')


context:
space:
mode: