Thanks for the review feedback that this change is too sudden.
How about this plan with a 4-month delay?
cheers,
-Len Brown, Intel Open Source Technology Center
2.6.39-rc1
----------
x86 idle: deprecate floppy disable_hlt
feature-removal.txt for 2.6.40 (4 months)
WARN_ONCE on use
cc: stable@xxxxxxxxxx
x86 idle APM: deprecate apm_cpu_idle
feature-removal.txt for 2.6.40 (4 months)
#warning on CONFIG_APM_CPU_IDLE remove in 2.6.40
WARN_ONCE in apm_cpu_idle()
cc: stable@xxxxxxxxxx
x86 idle: export pm_idle only for CONFIG_APM_MODULE
like we do for default_idle(),
EXPORT_SYMBOL(pm_idle) only on CONFIG_APM_MODULE
x86 idle: deprecate "no-hlt" cmdline param
feature-removal.txt for 2.6.40 (4 months)
cc stable@xxxxxxxxxx
WARN_ONCE if used, ask if idle=poll is sufficient
same as idle=poll, except no-hlt also disables
HLT in machine_halt().
x86 idle: deprecate "idle=mwait"
feature-removal.txt for 2.6.40 (4 months)
cc stable@xxxxxxxxxx
WARN_ONCE on invocation
x86 idle: re-name ce1_idle
rename for clarity, no functional change
2.6.40-merge
------
x86 idle: move mwait_idle_with_hints()
out of process.c to cstate.c, make static
x86 idle floppy: remove deprecated disable_hlt/enable_hlt
x86 idle: delete deprecated idle=mwait
default_idle() can use HLT
cpuidle: add cmdline "cpuidle=off"
allow falling back to native default_idle
x86 idle xen: stop touching pm_idle and default_idle
Xen Dom0 kernel only needs HLT, but include
CPU_IDLE, ACPI etc for running on bare hardware.
So when running in Xen Dom0 mode, disable cpuidle
to fall back to default_idle.
x86 idle APM: remove deprecated apm_cpu_idle()
and its use of pm_idle
x86 idle cpuidle: delete public use of pm_idle
make pm_idle and default_idle static to process.c
add return value from cpu_idle_call()
invoke cpu_idle_call from cpu_idle() rather than via pm_idle
cpu_idle() {
...
if (cpu_idle_call())
pm_idle(); /* non cpuidle default */
}
x86 idle: remove "no-hlt" cmdline param
remove deprecated "no-hlt"
use idle=poll instead
x86 idle: remove cpuinfo_x86.hlt_works_ok flag
it became a NOP when "no-hlt" was removed
x86 idle: remove hlt_works()
it became a NOP when cpuinfo_x86.hlt_works_ok was removed
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