mirror of
https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
synced 2026-11-09 20:31:13 -05:00
| Filename | Latest commit message | Latest commit date |
|---|---|---|
07494d547e
Subsystems that want to register CPU hotplug callbacks, as well as perform initialization for the CPUs that are already online, often do it as shown below: get_online_cpus(); for_each_online_cpu(cpu) init_cpu(cpu); register_cpu_notifier(&foobar_cpu_notifier); put_online_cpus(); This is wrong, since it is prone to ABBA deadlocks involving the cpu_add_remove_lock and the cpu_hotplug.lock (when running concurrently with CPU hotplug operations). Instead, the correct and race-free way of performing the callback registration is: cpu_notifier_register_begin(); for_each_online_cpu(cpu) init_cpu(cpu); /* Note the use of the double underscored version of the API */ __register_cpu_notifier(&foobar_cpu_notifier); cpu_notifier_register_done(); Fix the intel-idle code by using this latter form of callback registration. Cc: Len Brown <[email protected]> Cc: Ingo Molnar <[email protected]> Signed-off-by: Srivatsa S. Bhat <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> |
||
| .. | ||
| i7300_idle.c | ||
| intel_idle.c | ||
| Kconfig | ||
| Makefile | ||