The patch titled
Add suspend-related notifications for CPU hotplug
has been added to the -mm tree. Its filename is
add-suspend-related-notifications-for-cpu-hotplug-statistics.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Add suspend-related notifications for CPU hotplug
From: Rafael J. Wysocki <rjw@xxxxxxx>
Since nonboot CPUs are now disabled after tasks and devices have been
frozen and the CPU hotplug infrastructure is used for this purpose, we need
special CPU hotplug notifications that will help the CPU-hotplug-aware
subsystems distinguish normal CPU hotplug events from CPU hotplug events
related to a system-wide suspend or resume operation in progress. This
patch introduces such notifications and causes them to be used during
suspend and resume transitions. It also changes all of the
CPU-hotplug-aware subsystems to take these notifications into consideration
(for now they are handled in the same way as the corresponding "normal"
ones).
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/statistic.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN lib/statistic.c~add-suspend-related-notifications-for-cpu-hotplug-statistics lib/statistic.c
--- a/lib/statistic.c~add-suspend-related-notifications-for-cpu-hotplug-statistics
+++ a/lib/statistic.c
@@ -296,6 +296,7 @@ static int _statistic_hotcpu(struct stat
return NOTIFY_OK;
switch (action) {
case CPU_UP_PREPARE:
+ case CPU_UP_PREPARE_FROZEN:
size = disc->size(stat);
dst = percpu_populate(stat->data, size, GFP_KERNEL, cpu);
if (!dst)
@@ -303,7 +304,9 @@ static int _statistic_hotcpu(struct stat
disc->reset(stat, dst);
break;
case CPU_UP_CANCELED:
+ case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
+ case CPU_DEAD_FROZEN:
local_irq_save(flags);
dst = percpu_ptr(stat->data, smp_processor_id());
src = percpu_ptr(stat->data, cpu);
_
Patches currently in -mm which might be from rjw@xxxxxxx are
fix-refrigerator-vs-thaw_process-race.patch
swsusp-use-inline-functions-for-changing-page-flags.patch
swsusp-do-not-use-page-flags.patch
mm-remove-unused-page-flags.patch
swsusp-fix-error-paths-in-snapshot_open.patch
swsusp-use-gfp_kernel-for-creating-basic-data-structures.patch
rework-pm_ops-pm_disk_mode-kill-misuse.patch
power-management-remove-firmware-disk-mode.patch
power-management-implement-pm_opsvalid-for-everybody.patch
power-management-force-pm_opsvalid-callback-to-be.patch
freezer-remove-pf_nofreeze-from-handle_initrd.patch
swsusp-use-rbtree-for-tracking-allocated-swap.patch
freezer-fix-racy-usage-of-try_to_freeze-in-kswapd.patch
remove-software_suspend.patch
power-management-change-sys-power-disk-display.patch
freezer-task-exit_state-should-be-treated-as-bolean.patch
documentation-ask-driver-writers-to-provide-pm-support.patch
freezer-read-pf_borrowed_mm-in-a-nonracy-way.patch
freezer-close-theoretical-race-between-refrigerator-and-thaw_tasks.patch
freezer-remove-pf_nofreeze-from-rcutorture-thread.patch
freezer-remove-pf_nofreeze-from-bluetooth-threads.patch
freezer-add-try_to_freeze-calls-to-all-kernel-threads.patch
freezer-fix-vfork-problem.patch
freezer-take-kernel_execve-into-consideration.patch
fix-pf_nofreeze-and-freezeable-race.patch
freezer-document-task_lock-in-thaw_process.patch
add-suspend-related-notifications-for-cpu-hotplug.patch
microcode-use-suspend-related-cpu-hotplug-notifications.patch
add-suspend-related-notifications-for-cpu-hotplug-statistics.patch
shrink_slab-handle-bad-shrinkers.patch
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