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Message-Id: <1441373702-31796-8-git-send-email-daniel.wagner@bmw-carit.de>
Date: Fri, 4 Sep 2015 15:35:00 +0200
From: Daniel Wagner <daniel.wagner@...-carit.de>
To: linux-kernel@...r.kernel.org
Cc: Daniel Wagner <daniel.wagner@...-carit.de>
Subject: [RFC v0 7/9] cpu: Remove unused CPU_*_FROZEN states
There is no user left of the CPU_*_FROZEN states. Any subsystem
which needs do to know if tasks are frozen due to a suspend
operation can ask directly via freeze_active().
Signed-off-by: Daniel Wagner <daniel.wagner@...-carit.de>
[This patch contains only things like
- if ((action & ~CPU_TASKS_FROZEN) == CPU_ONLINE)
+ if (action == CPU_ONLINE)
or
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
or
- case CPU_STARTING_FROZEN:
The more interesting changes are separate patches in order to get
enough eyes to look at. Still this patch is pretty big and touches
almost everying. I'll split it up if the rest of the series makes
sense.]
---
arch/arm/kernel/hw_breakpoint.c | 2 +-
arch/arm/kernel/perf_event.c | 2 +-
arch/arm/kernel/smp_twd.c | 2 +-
arch/arm/kvm/arm.c | 1 -
arch/arm/mm/cache-l2x0.c | 2 +-
arch/arm/vfp/vfpmodule.c | 4 ++--
arch/arm64/kernel/armv8_deprecated.c | 2 +-
arch/arm64/kernel/fpsimd.c | 1 -
arch/blackfin/kernel/perf_event.c | 2 +-
arch/ia64/kernel/err_inject.c | 2 --
arch/ia64/kernel/mca.c | 1 -
arch/ia64/kernel/palinfo.c | 2 --
arch/ia64/kernel/salinfo.c | 2 --
arch/ia64/kernel/topology.c | 2 --
arch/metag/kernel/perf/perf_event.c | 2 +-
arch/mips/loongson64/loongson-3/smp.c | 3 ---
arch/mips/oprofile/op_model_loongson3.c | 2 --
arch/powerpc/kernel/sysfs.c | 2 --
arch/powerpc/mm/mmu_context_nohash.c | 3 ---
arch/powerpc/mm/numa.c | 3 ---
arch/powerpc/perf/core-book3s.c | 2 +-
arch/powerpc/platforms/powermac/smp.c | 2 --
arch/s390/kernel/perf_cpum_cf.c | 2 +-
arch/s390/kernel/perf_cpum_sf.c | 3 +--
arch/s390/kernel/smp.c | 2 +-
arch/s390/mm/fault.c | 2 +-
arch/sh/kernel/perf_event.c | 2 +-
arch/sparc/kernel/sysfs.c | 2 --
arch/x86/entry/vdso/vma.c | 2 +-
arch/x86/kernel/apic/x2apic_cluster.c | 1 -
arch/x86/kernel/cpu/mcheck/mce.c | 2 +-
arch/x86/kernel/cpu/mcheck/mce_amd.c | 2 --
arch/x86/kernel/cpu/mcheck/therm_throt.c | 3 ---
arch/x86/kernel/cpu/microcode/core.c | 2 +-
arch/x86/kernel/cpu/perf_event.c | 2 +-
arch/x86/kernel/cpu/perf_event_amd_ibs.c | 2 +-
arch/x86/kernel/cpu/perf_event_amd_uncore.c | 2 +-
arch/x86/kernel/cpu/perf_event_intel_cqm.c | 2 +-
arch/x86/kernel/cpu/perf_event_intel_rapl.c | 2 +-
arch/x86/kernel/cpu/perf_event_intel_uncore.c | 4 ++--
arch/x86/kernel/cpuid.c | 1 -
arch/x86/kernel/kvm.c | 2 --
arch/x86/kernel/msr.c | 1 -
arch/x86/pci/amd_bus.c | 1 -
arch/xtensa/kernel/perf_event.c | 2 +-
block/blk-iopoll.c | 2 +-
block/blk-mq.c | 5 ++---
block/blk-softirq.c | 2 +-
drivers/acpi/processor_driver.c | 1 -
drivers/base/cacheinfo.c | 2 +-
drivers/base/topology.c | 3 ---
drivers/bus/arm-cci.c | 2 +-
drivers/bus/arm-ccn.c | 2 +-
drivers/bus/mips_cdmm.c | 2 +-
drivers/clocksource/arm_arch_timer.c | 2 +-
drivers/clocksource/arm_global_timer.c | 2 +-
drivers/clocksource/dummy_timer.c | 2 +-
drivers/clocksource/exynos_mct.c | 2 +-
drivers/clocksource/metag_generic.c | 1 -
drivers/clocksource/mips-gic-timer.c | 2 +-
drivers/clocksource/qcom-timer.c | 2 +-
drivers/clocksource/time-armada-370-xp.c | 2 +-
drivers/clocksource/timer-atlas7.c | 2 +-
drivers/cpufreq/acpi-cpufreq.c | 2 --
drivers/cpufreq/cpufreq.c | 2 +-
drivers/cpuidle/coupled.c | 4 ++--
drivers/cpuidle/cpuidle-powernv.c | 2 --
drivers/cpuidle/cpuidle-pseries.c | 2 --
drivers/hwtracing/coresight/coresight-etm3x.c | 2 +-
drivers/hwtracing/coresight/coresight-etm4x.c | 2 +-
drivers/idle/intel_idle.c | 2 +-
drivers/irqchip/irq-armada-370-xp.c | 4 ++--
drivers/irqchip/irq-gic-v3.c | 2 +-
drivers/irqchip/irq-gic.c | 2 +-
drivers/irqchip/irq-hip04.c | 2 +-
drivers/leds/trigger/ledtrig-cpu.c | 2 +-
drivers/md/raid5.c | 2 --
drivers/net/virtio_net.c | 2 +-
drivers/oprofile/timer_int.c | 2 --
drivers/pci/host/pci-xgene-msi.c | 2 --
drivers/powercap/intel_rapl.c | 3 ---
drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 --
drivers/scsi/bnx2i/bnx2i_init.c | 2 --
drivers/scsi/fcoe/fcoe.c | 2 --
drivers/scsi/virtio_scsi.c | 2 --
drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c | 4 +---
fs/buffer.c | 2 +-
kernel/events/core.c | 2 +-
kernel/padata.c | 4 ----
kernel/profile.c | 4 ----
kernel/rcu/tree.c | 5 -----
kernel/relay.c | 2 --
kernel/sched/core.c | 11 ++++-------
kernel/sched/fair.c | 2 +-
kernel/smp.c | 6 +-----
kernel/softirq.c | 1 -
kernel/time/hrtimer.c | 2 --
kernel/time/tick-sched.c | 2 +-
kernel/time/timer.c | 1 -
kernel/trace/ring_buffer.c | 2 --
kernel/workqueue.c | 4 ++--
lib/cpu-notifier-error-inject.c | 2 --
lib/percpu_counter.c | 2 +-
lib/radix-tree.c | 2 +-
mm/memcontrol.c | 2 +-
mm/page-writeback.c | 2 +-
mm/page_alloc.c | 2 +-
mm/slab.c | 6 ------
mm/slub.c | 2 --
mm/vmscan.c | 2 +-
mm/vmstat.c | 4 ----
net/core/dev.c | 2 +-
net/core/flow.c | 2 --
net/iucv/iucv.c | 6 ------
virt/kvm/arm/arch_timer.c | 2 --
virt/kvm/arm/vgic.c | 2 --
virt/kvm/kvm_main.c | 1 -
117 files changed, 74 insertions(+), 200 deletions(-)
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index dc7d0a9..98c76e7 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -1024,7 +1024,7 @@ out_mdbgen:
static int dbg_reset_notify(struct notifier_block *self,
unsigned long action, void *cpu)
{
- if ((action & ~CPU_TASKS_FROZEN) == CPU_ONLINE)
+ if (action == CPU_ONLINE)
smp_call_function_single((int)cpu, reset_ctrl_regs, NULL, 1);
return NOTIFY_OK;
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 54272e0..4ae8e06 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -704,7 +704,7 @@ static int cpu_pmu_notify(struct notifier_block *b, unsigned long action,
int cpu = (unsigned long)hcpu;
struct arm_pmu *pmu = container_of(b, struct arm_pmu, hotplug_nb);
- if ((action & ~CPU_TASKS_FROZEN) != CPU_STARTING)
+ if (action != CPU_STARTING)
return NOTIFY_DONE;
if (!cpumask_test_cpu(cpu, &pmu->supported_cpus))
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index e9035cd..76dcbcaf 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -313,7 +313,7 @@ static void twd_timer_setup(void)
static int twd_timer_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
twd_timer_setup();
break;
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index bc738d2..98be232 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -928,7 +928,6 @@ static int hyp_init_cpu_notify(struct notifier_block *self,
{
switch (action) {
case CPU_STARTING:
- case CPU_STARTING_FROZEN:
if (__hyp_get_vectors() == hyp_default_vectors)
cpu_init_hyp_mode(NULL);
break;
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 71b3d33..19e26ee 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -599,7 +599,7 @@ static void l2c310_configure(void __iomem *base)
static int l2c310_cpu_enable_flz(struct notifier_block *nb, unsigned long act, void *data)
{
- switch (act & ~CPU_TASKS_FROZEN) {
+ switch (act) {
case CPU_STARTING:
set_auxcr(get_auxcr() | BIT(3) | BIT(2) | BIT(1));
break;
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 2a61e4b..09c785e 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -655,9 +655,9 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp,
static int vfp_hotplug(struct notifier_block *b, unsigned long action,
void *hcpu)
{
- if (action == CPU_DYING || action == CPU_DYING_FROZEN)
+ if (action == CPU_DYING)
vfp_current_hw_state[(long)hcpu] = NULL;
- else if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
+ else if (action == CPU_STARTING)
vfp_enable(NULL);
return NOTIFY_OK;
}
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index 7922c2e..981058f 100644
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -625,7 +625,7 @@ static int insn_cpu_hotplug_notify(struct notifier_block *b,
unsigned long action, void *hcpu)
{
int rc = 0;
- if ((action & ~CPU_TASKS_FROZEN) == CPU_STARTING)
+ if (action == CPU_STARTING)
rc = run_all_insn_set_hw_mode((unsigned long)hcpu);
return notifier_from_errno(rc);
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 44d6f75..c5c2e0c 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -306,7 +306,6 @@ static int fpsimd_cpu_hotplug_notifier(struct notifier_block *nfb,
switch (action) {
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
per_cpu(fpsimd_last_state, cpu) = NULL;
break;
}
diff --git a/arch/blackfin/kernel/perf_event.c b/arch/blackfin/kernel/perf_event.c
index 1e9c8b0..d7815af 100644
--- a/arch/blackfin/kernel/perf_event.c
+++ b/arch/blackfin/kernel/perf_event.c
@@ -465,7 +465,7 @@ bfin_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
{
unsigned int cpu = (long)hcpu;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
bfin_write_PFCTL(0);
bfin_pmu_setup(cpu);
diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c
index 0c161ed..721991d 100644
--- a/arch/ia64/kernel/err_inject.c
+++ b/arch/ia64/kernel/err_inject.c
@@ -244,11 +244,9 @@ static int err_inject_cpu_callback(struct notifier_block *nfb,
sys_dev = get_cpu_device(cpu);
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
err_inject_add_dev(sys_dev);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
err_inject_remove_dev(sys_dev);
break;
}
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 2889412..cb3ba65 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1908,7 +1908,6 @@ static int mca_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
smp_call_function_single(hotcpu, ia64_mca_cmc_vector_adjust,
NULL, 0);
break;
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
index c39c3cd..8ba2d8f 100644
--- a/arch/ia64/kernel/palinfo.c
+++ b/arch/ia64/kernel/palinfo.c
@@ -969,11 +969,9 @@ static int palinfo_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
create_palinfo_proc_entries(hotcpu);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
remove_palinfo_proc_entries(hotcpu);
break;
}
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index 1eeffb7..8f91669 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -576,7 +576,6 @@ salinfo_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu
struct salinfo_data *data;
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
spin_lock_irqsave(&data_saved_lock, flags);
for (i = 0, data = salinfo_data;
i < ARRAY_SIZE(salinfo_data);
@@ -587,7 +586,6 @@ salinfo_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu
spin_unlock_irqrestore(&data_saved_lock, flags);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
spin_lock_irqsave(&data_saved_lock, flags);
for (i = 0, data = salinfo_data;
i < ARRAY_SIZE(salinfo_data);
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index c01fe89..58c2f50 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -432,11 +432,9 @@ static int cache_cpu_callback(struct notifier_block *nfb,
sys_dev = get_cpu_device(cpu);
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
cache_add_dev(sys_dev);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
cache_remove_dev(sys_dev);
break;
}
diff --git a/arch/metag/kernel/perf/perf_event.c b/arch/metag/kernel/perf/perf_event.c
index 2478ec6..41c1841 100644
--- a/arch/metag/kernel/perf/perf_event.c
+++ b/arch/metag/kernel/perf/perf_event.c
@@ -809,7 +809,7 @@ static int metag_pmu_cpu_notify(struct notifier_block *b, unsigned long action,
unsigned int cpu = (unsigned int)hcpu;
struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
- if ((action & ~CPU_TASKS_FROZEN) != CPU_STARTING)
+ if (action != CPU_STARTING)
return NOTIFY_DONE;
memset(cpuc, 0, sizeof(struct cpu_hw_events));
diff --git a/arch/mips/loongson64/loongson-3/smp.c b/arch/mips/loongson64/loongson-3/smp.c
index 1a4738a..b23b867 100644
--- a/arch/mips/loongson64/loongson-3/smp.c
+++ b/arch/mips/loongson64/loongson-3/smp.c
@@ -609,7 +609,6 @@ void loongson3_enable_clock(int cpu)
}
}
-#define CPU_POST_DEAD_FROZEN (CPU_POST_DEAD | CPU_TASKS_FROZEN)
static int loongson3_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
@@ -617,12 +616,10 @@ static int loongson3_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_POST_DEAD:
- case CPU_POST_DEAD_FROZEN:
pr_info("Disable clock for CPU#%d\n", cpu);
loongson3_disable_clock(cpu);
break;
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
pr_info("Enable clock for CPU#%d\n", cpu);
loongson3_enable_clock(cpu);
break;
diff --git a/arch/mips/oprofile/op_model_loongson3.c b/arch/mips/oprofile/op_model_loongson3.c
index 8bcf7fc..bd62285 100644
--- a/arch/mips/oprofile/op_model_loongson3.c
+++ b/arch/mips/oprofile/op_model_loongson3.c
@@ -173,12 +173,10 @@ static int loongson3_cpu_callback(struct notifier_block *nfb,
{
switch (action) {
case CPU_STARTING:
- case CPU_STARTING_FROZEN:
write_c0_perflo1(reg.control1);
write_c0_perflo2(reg.control2);
break;
case CPU_DYING:
- case CPU_DYING_FROZEN:
write_c0_perflo1(0xc0000000);
write_c0_perflo2(0x40000000);
break;
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 692873b..54d5239 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -892,12 +892,10 @@ static int sysfs_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
register_cpu_online(cpu);
break;
#ifdef CONFIG_HOTPLUG_CPU
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
unregister_cpu_online(cpu);
break;
#endif
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index 986afbc..1866e9b 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -383,15 +383,12 @@ static int mmu_context_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
pr_devel("MMU: Allocating stale context map for CPU %d\n", cpu);
stale_map[cpu] = kzalloc(CTX_MAP_SIZE, GFP_KERNEL);
break;
#ifdef CONFIG_HOTPLUG_CPU
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
pr_devel("MMU: Freeing stale context map for CPU %d\n", cpu);
kfree(stale_map[cpu]);
stale_map[cpu] = NULL;
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 5e80621..fd0188b 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -582,16 +582,13 @@ static int cpu_numa_callback(struct notifier_block *nfb, unsigned long action,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
nid = numa_setup_cpu(lcpu);
verify_cpu_node_mapping((int)lcpu, nid);
ret = NOTIFY_OK;
break;
#ifdef CONFIG_HOTPLUG_CPU
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
unmap_cpu_from_node(lcpu);
ret = NOTIFY_OK;
break;
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index d90893b..ec01aa0 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -2149,7 +2149,7 @@ power_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu
{
unsigned int cpu = (long)hcpu;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
power_pmu_setup(cpu);
break;
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 28a147c..88f739c 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -859,7 +859,6 @@ static int smp_core99_cpu_notify(struct notifier_block *self,
switch(action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
/* Open i2c bus if it was used for tb sync */
if (pmac_tb_clock_chip_host) {
rc = pmac_i2c_open(pmac_tb_clock_chip_host, 1);
@@ -870,7 +869,6 @@ static int smp_core99_cpu_notify(struct notifier_block *self,
}
break;
case CPU_ONLINE:
- case CPU_UP_CANCELED:
/* Close i2c bus if it was used for tb sync */
if (pmac_tb_clock_chip_host)
pmac_i2c_close(pmac_tb_clock_chip_host);
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 56fdad4..891b659 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -639,7 +639,7 @@ static int cpumf_pmu_notifier(struct notifier_block *self, unsigned long action,
unsigned int cpu = (long) hcpu;
int flags;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
flags = PMC_INIT;
smp_call_function_single(cpu, setup_pmc_cpu, &flags, 1);
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index b973972..b687697 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1514,9 +1514,8 @@ static int cpumf_pmu_notifier(struct notifier_block *self,
if (!atomic_read(&num_events))
return NOTIFY_OK;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
flags = PMC_INIT;
smp_call_function_single(cpu, setup_pmc_cpu, &flags, 1);
break;
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index c6355e6..a5a9454 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -1061,7 +1061,7 @@ static int smp_cpu_notify(struct notifier_block *self, unsigned long action,
struct device *s = &per_cpu(cpu_device, cpu)->dev;
int err = 0;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
err = sysfs_create_group(&s->kobj, &cpu_online_attr_group);
break;
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index f985856..b9357055 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -715,7 +715,7 @@ static int pfault_cpu_notify(struct notifier_block *self, unsigned long action,
struct thread_struct *thread, *next;
struct task_struct *tsk;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_DEAD:
spin_lock_irq(&pfault_lock);
list_for_each_entry_safe(thread, next, &pfault_list, list) {
diff --git a/arch/sh/kernel/perf_event.c b/arch/sh/kernel/perf_event.c
index 7cfd7f1..abb5d97 100644
--- a/arch/sh/kernel/perf_event.c
+++ b/arch/sh/kernel/perf_event.c
@@ -364,7 +364,7 @@ sh_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
{
unsigned int cpu = (long)hcpu;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
sh_pmu_setup(cpu);
break;
diff --git a/arch/sparc/kernel/sysfs.c b/arch/sparc/kernel/sysfs.c
index 7f41d40..0576ec7 100644
--- a/arch/sparc/kernel/sysfs.c
+++ b/arch/sparc/kernel/sysfs.c
@@ -253,12 +253,10 @@ static int sysfs_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
register_cpu_online(cpu);
break;
#ifdef CONFIG_HOTPLUG_CPU
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
unregister_cpu_online(cpu);
break;
#endif
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 4345431..4645ea7 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -275,7 +275,7 @@ vgetcpu_cpu_notifier(struct notifier_block *n, unsigned long action, void *arg)
{
long cpu = (long)arg;
- if (action == CPU_ONLINE || action == CPU_ONLINE_FROZEN)
+ if (action == CPU_ONLINE)
smp_call_function_single(cpu, vgetcpu_cpu_init, NULL, 1);
return NOTIFY_DONE;
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index cc8311c..4aa7e73 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -166,7 +166,6 @@ update_clusterinfo(struct notifier_block *nfb, unsigned long action, void *hcpu)
}
break;
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
for_each_online_cpu(cpu) {
if (x2apic_cluster(this_cpu) != x2apic_cluster(cpu))
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 1bd421b..08b161d 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -2381,7 +2381,7 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
unsigned int cpu = (unsigned long)hcpu;
struct timer_list *t = &per_cpu(mce_timer, cpu);
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
mce_device_create(cpu);
if (threshold_cpu_callback)
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index e99b150..0310ea5 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -847,11 +847,9 @@ amd_64_threshold_cpu_callback(unsigned long action, unsigned int cpu)
{
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
threshold_create_device(cpu);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
threshold_remove_device(cpu);
break;
default:
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c
index 1af51b1..017f549 100644
--- a/arch/x86/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c
@@ -285,14 +285,11 @@ thermal_throttle_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
err = thermal_throttle_add_dev(dev, cpu);
WARN_ON(err);
break;
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
thermal_throttle_remove_dev(dev);
break;
}
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
index e49ec2c..818652e 100644
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -423,7 +423,7 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
dev = get_cpu_device(cpu);
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
microcode_update_cpu(cpu);
pr_debug("CPU%d added\n", cpu);
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 66dd3fe9..30efef5 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1461,7 +1461,7 @@ x86_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
int i, ret = NOTIFY_OK;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
for (i = 0 ; i < X86_PERF_KFREE_MAX; i++)
cpuc->kfree_on_online[i] = NULL;
diff --git a/arch/x86/kernel/cpu/perf_event_amd_ibs.c b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
index 989d3c2..a42d7a0 100644
--- a/arch/x86/kernel/cpu/perf_event_amd_ibs.c
+++ b/arch/x86/kernel/cpu/perf_event_amd_ibs.c
@@ -911,7 +911,7 @@ static inline void perf_ibs_pm_init(void) { }
static int
perf_ibs_cpu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
setup_APIC_ibs(NULL);
break;
diff --git a/arch/x86/kernel/cpu/perf_event_amd_uncore.c b/arch/x86/kernel/cpu/perf_event_amd_uncore.c
index cc6cedb..a4fc015 100644
--- a/arch/x86/kernel/cpu/perf_event_amd_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_amd_uncore.c
@@ -465,7 +465,7 @@ amd_uncore_cpu_notifier(struct notifier_block *self, unsigned long action,
{
unsigned int cpu = (long)hcpu;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
if (amd_uncore_cpu_up_prepare(cpu))
return notifier_from_errno(-ENOMEM);
diff --git a/arch/x86/kernel/cpu/perf_event_intel_cqm.c b/arch/x86/kernel/cpu/perf_event_intel_cqm.c
index 377e8f8..d1b4508 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_cqm.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_cqm.c
@@ -1295,7 +1295,7 @@ static int intel_cqm_cpu_notifier(struct notifier_block *nb,
{
unsigned int cpu = (unsigned long)hcpu;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_DOWN_PREPARE:
intel_cqm_cpu_exit(cpu);
break;
diff --git a/arch/x86/kernel/cpu/perf_event_intel_rapl.c b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
index 81431c0..0d905a3 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_rapl.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
@@ -666,7 +666,7 @@ static int rapl_cpu_notifier(struct notifier_block *self,
{
unsigned int cpu = (long)hcpu;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
rapl_cpu_prepare(cpu);
break;
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 560e525..d9f7280 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -1150,7 +1150,7 @@ static int uncore_cpu_notifier(struct notifier_block *self,
unsigned int cpu = (long)hcpu;
/* allocate/free data structure for uncore box */
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
uncore_cpu_prepare(cpu, -1);
break;
@@ -1170,7 +1170,7 @@ static int uncore_cpu_notifier(struct notifier_block *self,
}
/* select the cpu that collects uncore events */
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_DOWN_FAILED:
case CPU_STARTING:
uncore_event_init_cpu(cpu);
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index bd3507d..edd8816 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -162,7 +162,6 @@ static int cpuid_class_cpu_callback(struct notifier_block *nfb,
err = cpuid_device_create(cpu);
break;
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
cpuid_device_destroy(cpu);
break;
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 47190bd..07c4313 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -453,11 +453,9 @@ static int kvm_cpu_notify(struct notifier_block *self, unsigned long action,
switch (action) {
case CPU_ONLINE:
case CPU_DOWN_FAILED:
- case CPU_ONLINE_FROZEN:
smp_call_function_single(cpu, kvm_guest_cpu_online, NULL, 0);
break;
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
smp_call_function_single(cpu, kvm_guest_cpu_offline, NULL, 1);
break;
default:
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 113e707..99674fe 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -227,7 +227,6 @@ static int msr_class_cpu_callback(struct notifier_block *nfb,
err = msr_device_create(cpu);
break;
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
msr_device_destroy(cpu);
break;
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index c20d2cc..e819cf6 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -343,7 +343,6 @@ static int amd_cpu_notify(struct notifier_block *self, unsigned long action,
int cpu = (long)hcpu;
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
smp_call_function_single(cpu, enable_pci_io_ecs, NULL, 0);
break;
default:
diff --git a/arch/xtensa/kernel/perf_event.c b/arch/xtensa/kernel/perf_event.c
index 54f0118..5615397 100644
--- a/arch/xtensa/kernel/perf_event.c
+++ b/arch/xtensa/kernel/perf_event.c
@@ -418,7 +418,7 @@ static void xtensa_pmu_setup(void)
static int xtensa_pmu_notifier(struct notifier_block *self,
unsigned long action, void *data)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
xtensa_pmu_setup();
break;
diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c
index 0736729..aa1dc01 100644
--- a/block/blk-iopoll.c
+++ b/block/blk-iopoll.c
@@ -193,7 +193,7 @@ static int blk_iopoll_cpu_notify(struct notifier_block *self,
* If a CPU goes away, splice its entries to the current CPU
* and trigger a run of the softirq
*/
- if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) {
+ if (action == CPU_DEAD) {
int cpu = (unsigned long) hcpu;
local_irq_disable();
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 7d842db..cbfa5bb 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1618,7 +1618,7 @@ static int blk_mq_hctx_notify(void *data, unsigned long action,
{
struct blk_mq_hw_ctx *hctx = data;
- if (action == CPU_DEAD || action == CPU_DEAD_FROZEN)
+ if (action == CPU_DEAD)
return blk_mq_hctx_cpu_offline(hctx, cpu);
/*
@@ -2114,8 +2114,7 @@ static int blk_mq_queue_reinit_notify(struct notifier_block *nb,
* offline CPUs to first hardware queue. We will re-init the queue
* below to get optimal settings.
*/
- if (action != CPU_DEAD && action != CPU_DEAD_FROZEN &&
- action != CPU_ONLINE && action != CPU_ONLINE_FROZEN)
+ if (action != CPU_DEAD && action != CPU_ONLINE)
return NOTIFY_OK;
mutex_lock(&all_q_mutex);
diff --git a/block/blk-softirq.c b/block/blk-softirq.c
index 53b1737..5a21131 100644
--- a/block/blk-softirq.c
+++ b/block/blk-softirq.c
@@ -85,7 +85,7 @@ static int blk_cpu_notify(struct notifier_block *self, unsigned long action,
* If a CPU goes away, splice its entries to the current CPU
* and trigger a run of the softirq
*/
- if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) {
+ if (action == CPU_DEAD) {
int cpu = (unsigned long) hcpu;
local_irq_disable();
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index d9f7158..4fcbd67 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -120,7 +120,6 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
unsigned int cpu = (unsigned long)hcpu;
struct acpi_processor *pr = per_cpu(processors, cpu);
struct acpi_device *device;
- action &= ~CPU_TASKS_FROZEN;
/*
* CPU_STARTING and CPU_DYING must not sleep. Return here since
diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
index 764280a..7441ca5 100644
--- a/drivers/base/cacheinfo.c
+++ b/drivers/base/cacheinfo.c
@@ -506,7 +506,7 @@ static int cacheinfo_cpu_callback(struct notifier_block *nfb,
unsigned int cpu = (unsigned long)hcpu;
int rc = 0;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
rc = detect_cache_attributes(cpu);
if (!rc)
diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index 8b7d7f8..a30d92f 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -120,13 +120,10 @@ static int topology_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
rc = topology_add_dev(cpu);
break;
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
topology_remove_dev(cpu);
break;
}
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 577cc4b..33f2be3 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -1309,7 +1309,7 @@ static int cci_pmu_cpu_notifier(struct notifier_block *self,
unsigned int cpu = (long)hcpu;
unsigned int target;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_DOWN_PREPARE:
if (!cpumask_test_and_clear_cpu(cpu, &cci_pmu->cpus))
break;
diff --git a/drivers/bus/arm-ccn.c b/drivers/bus/arm-ccn.c
index 7d9879e..f55a045 100644
--- a/drivers/bus/arm-ccn.c
+++ b/drivers/bus/arm-ccn.c
@@ -1179,7 +1179,7 @@ static int arm_ccn_pmu_cpu_notifier(struct notifier_block *nb,
unsigned int cpu = (long)hcpu; /* for (long) see kernel/cpu.c */
unsigned int target;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_DOWN_PREPARE:
if (!cpumask_test_and_clear_cpu(cpu, &dt->cpu))
break;
diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c
index ab3bde1..bba990e8 100644
--- a/drivers/bus/mips_cdmm.c
+++ b/drivers/bus/mips_cdmm.c
@@ -662,7 +662,7 @@ static int mips_cdmm_cpu_notify(struct notifier_block *nb,
{
unsigned int cpu = (unsigned int)data;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
case CPU_DOWN_FAILED:
work_on_cpu(cpu, mips_cdmm_bus_up, &cpu);
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index d6e3e49..dea3118 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -508,7 +508,7 @@ static int arch_timer_cpu_notify(struct notifier_block *self,
* Grab cpu pointer in each case to avoid spurious
* preemptible warnings
*/
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
arch_timer_setup(this_cpu_ptr(arch_timer_evt));
break;
diff --git a/drivers/clocksource/arm_global_timer.c b/drivers/clocksource/arm_global_timer.c
index 29ea50a..0019bd8 100644
--- a/drivers/clocksource/arm_global_timer.c
+++ b/drivers/clocksource/arm_global_timer.c
@@ -222,7 +222,7 @@ static void __init gt_clocksource_init(void)
static int gt_cpu_notify(struct notifier_block *self, unsigned long action,
void *hcpu)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
gt_clockevents_init(this_cpu_ptr(gt_evt));
break;
diff --git a/drivers/clocksource/dummy_timer.c b/drivers/clocksource/dummy_timer.c
index 776b6c8..58e8af6 100644
--- a/drivers/clocksource/dummy_timer.c
+++ b/drivers/clocksource/dummy_timer.c
@@ -34,7 +34,7 @@ static void dummy_timer_setup(void)
static int dummy_timer_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
- if ((action & ~CPU_TASKS_FROZEN) == CPU_STARTING)
+ if (action == CPU_STARTING)
dummy_timer_setup();
return NOTIFY_OK;
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index 029f96a..7e0e7d4 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -492,7 +492,7 @@ static int exynos4_mct_cpu_notify(struct notifier_block *self,
* Grab cpu pointer in each case to avoid spurious
* preemptible warnings
*/
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
mevt = this_cpu_ptr(&percpu_mct_tick);
exynos4_local_timer_setup(mevt);
diff --git a/drivers/clocksource/metag_generic.c b/drivers/clocksource/metag_generic.c
index bcd5c0d..7b8e2eb 100644
--- a/drivers/clocksource/metag_generic.c
+++ b/drivers/clocksource/metag_generic.c
@@ -141,7 +141,6 @@ static int arch_timer_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_STARTING:
- case CPU_STARTING_FROZEN:
arch_timer_setup(cpu);
break;
}
diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c
index c3810b6..7eb2d78 100644
--- a/drivers/clocksource/mips-gic-timer.c
+++ b/drivers/clocksource/mips-gic-timer.c
@@ -75,7 +75,7 @@ static void gic_clockevent_cpu_exit(struct clock_event_device *cd)
static int gic_cpu_notifier(struct notifier_block *nb, unsigned long action,
void *data)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
gic_clockevent_cpu_init(this_cpu_ptr(&gic_clockevent_device));
break;
diff --git a/drivers/clocksource/qcom-timer.c b/drivers/clocksource/qcom-timer.c
index f8e09f9..e2c2a00 100644
--- a/drivers/clocksource/qcom-timer.c
+++ b/drivers/clocksource/qcom-timer.c
@@ -148,7 +148,7 @@ static int msm_timer_cpu_notify(struct notifier_block *self,
* Grab cpu pointer in each case to avoid spurious
* preemptible warnings
*/
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
msm_local_timer_setup(this_cpu_ptr(msm_evt));
break;
diff --git a/drivers/clocksource/time-armada-370-xp.c b/drivers/clocksource/time-armada-370-xp.c
index 2162796..8f43645 100644
--- a/drivers/clocksource/time-armada-370-xp.c
+++ b/drivers/clocksource/time-armada-370-xp.c
@@ -211,7 +211,7 @@ static int armada_370_xp_timer_cpu_notify(struct notifier_block *self,
* Grab cpu pointer in each case to avoid spurious
* preemptible warnings
*/
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
armada_370_xp_timer_setup(this_cpu_ptr(armada_370_xp_evt));
break;
diff --git a/drivers/clocksource/timer-atlas7.c b/drivers/clocksource/timer-atlas7.c
index 27fa136..03bfe07 100644
--- a/drivers/clocksource/timer-atlas7.c
+++ b/drivers/clocksource/timer-atlas7.c
@@ -222,7 +222,7 @@ static int sirfsoc_cpu_notify(struct notifier_block *self,
* Grab cpu pointer in each case to avoid spurious
* preemptible warnings
*/
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
sirfsoc_local_timer_setup(this_cpu_ptr(sirfsoc_clockevent));
break;
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 0136dfc..a7b349e 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -535,12 +535,10 @@ static int boost_notify(struct notifier_block *nb, unsigned long action,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
boost_set_msrs(acpi_cpufreq_driver.boost_enabled, cpumask);
break;
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
boost_set_msrs(1, cpumask);
break;
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 9bb09ce..59ff6e2 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2389,7 +2389,7 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
dev = get_cpu_device(cpu);
if (dev) {
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
cpufreq_add_dev(dev, NULL);
break;
diff --git a/drivers/cpuidle/coupled.c b/drivers/cpuidle/coupled.c
index 7936dce..7664f1d 100644
--- a/drivers/cpuidle/coupled.c
+++ b/drivers/cpuidle/coupled.c
@@ -745,7 +745,7 @@ static int cpuidle_coupled_cpu_notify(struct notifier_block *nb,
int cpu = (unsigned long)hcpu;
struct cpuidle_device *dev;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
case CPU_DOWN_PREPARE:
case CPU_ONLINE:
@@ -763,7 +763,7 @@ static int cpuidle_coupled_cpu_notify(struct notifier_block *nb,
if (!dev || !dev->coupled)
goto out;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
case CPU_DOWN_PREPARE:
cpuidle_coupled_prevent_idle(dev->coupled);
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 845bafc..7039df0 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -115,14 +115,12 @@ static int powernv_cpuidle_add_cpu_notifier(struct notifier_block *n,
if (dev && cpuidle_get_driver()) {
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
cpuidle_pause_and_lock();
cpuidle_enable_device(dev);
cpuidle_resume_and_unlock();
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
cpuidle_pause_and_lock();
cpuidle_disable_device(dev);
cpuidle_resume_and_unlock();
diff --git a/drivers/cpuidle/cpuidle-pseries.c b/drivers/cpuidle/cpuidle-pseries.c
index 07135e0..bc45457 100644
--- a/drivers/cpuidle/cpuidle-pseries.c
+++ b/drivers/cpuidle/cpuidle-pseries.c
@@ -181,14 +181,12 @@ static int pseries_cpuidle_add_cpu_notifier(struct notifier_block *n,
if (dev && cpuidle_get_driver()) {
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
cpuidle_pause_and_lock();
cpuidle_enable_device(dev);
cpuidle_resume_and_unlock();
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
cpuidle_pause_and_lock();
cpuidle_disable_device(dev);
cpuidle_resume_and_unlock();
diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index bf2476e..8885d20 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -1633,7 +1633,7 @@ static int etm_cpu_callback(struct notifier_block *nfb, unsigned long action,
if (!etmdrvdata[cpu])
goto out;
- switch (action & (~CPU_TASKS_FROZEN)) {
+ switch (action) {
case CPU_STARTING:
spin_lock(&etmdrvdata[cpu]->spinlock);
if (!etmdrvdata[cpu]->os_unlock) {
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index 254a81a..cde5f0a 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -2548,7 +2548,7 @@ static int etm4_cpu_callback(struct notifier_block *nfb, unsigned long action,
if (!etmdrvdata[cpu])
goto out;
- switch (action & (~CPU_TASKS_FROZEN)) {
+ switch (action) {
case CPU_STARTING:
spin_lock(&etmdrvdata[cpu]->spinlock);
if (!etmdrvdata[cpu]->os_unlock) {
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 2a36a95..397942a 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -716,7 +716,7 @@ static int cpu_hotplug_notify(struct notifier_block *n,
int hotcpu = (unsigned long)hcpu;
struct cpuidle_device *dev;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
if (lapic_timer_reliable_states != LAPIC_TIMER_ALWAYS_RELIABLE)
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 39b72da..b2ea69b 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -378,7 +378,7 @@ static void armada_mpic_send_doorbell(const struct cpumask *mask,
static int armada_xp_mpic_secondary_init(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
- if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) {
+ if (action == CPU_STARTING) {
armada_xp_mpic_perf_init();
armada_xp_mpic_smp_cpu_init();
}
@@ -394,7 +394,7 @@ static struct notifier_block armada_370_xp_mpic_cpu_notifier = {
static int mpic_cascaded_secondary_init(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
- if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) {
+ if (action == CPU_STARTING) {
armada_xp_mpic_perf_init();
enable_percpu_irq(parent_irq, IRQ_TYPE_NONE);
}
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 7deed6e..a17f97a 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -544,7 +544,7 @@ static void gic_cpu_init(void)
static int gic_secondary_init(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
- if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
+ if (action == CPU_STARTING)
gic_cpu_init();
return NOTIFY_OK;
}
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index e6b7ed5..d2b3136 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -947,7 +947,7 @@ static int gic_irq_domain_xlate(struct irq_domain *d,
static int gic_secondary_init(struct notifier_block *nfb, unsigned long action,
void *hcpu)
{
- if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
+ if (action == CPU_STARTING)
gic_cpu_init(&gic_data[0]);
return NOTIFY_OK;
}
diff --git a/drivers/irqchip/irq-hip04.c b/drivers/irqchip/irq-hip04.c
index a0128c7..8b5f78b 100644
--- a/drivers/irqchip/irq-hip04.c
+++ b/drivers/irqchip/irq-hip04.c
@@ -347,7 +347,7 @@ static int hip04_irq_secondary_init(struct notifier_block *nfb,
unsigned long action,
void *hcpu)
{
- if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
+ if (action == CPU_STARTING)
hip04_irq_cpu_init(&hip04_data);
return NOTIFY_OK;
}
diff --git a/drivers/leds/trigger/ledtrig-cpu.c b/drivers/leds/trigger/ledtrig-cpu.c
index aec0f02..4297b97 100644
--- a/drivers/leds/trigger/ledtrig-cpu.c
+++ b/drivers/leds/trigger/ledtrig-cpu.c
@@ -96,7 +96,7 @@ static struct syscore_ops ledtrig_cpu_syscore_ops = {
static int ledtrig_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
ledtrig_cpu(CPU_LED_START);
break;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index f757023..bd7ddd4 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -6331,7 +6331,6 @@ static int raid456_cpu_notify(struct notifier_block *nfb, unsigned long action,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
if (alloc_scratch_buffer(conf, percpu)) {
pr_err("%s: failed memory allocation for cpu%ld\n",
__func__, cpu);
@@ -6339,7 +6338,6 @@ static int raid456_cpu_notify(struct notifier_block *nfb, unsigned long action,
}
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
free_scratch_buffer(conf, per_cpu_ptr(conf->percpu, cpu));
break;
default:
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 237f8e5..8e4ec21d 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1291,7 +1291,7 @@ static int virtnet_cpu_callback(struct notifier_block *nfb,
{
struct virtnet_info *vi = container_of(nfb, struct virtnet_info, nb);
- switch(action & ~CPU_TASKS_FROZEN) {
+ switch(action) {
case CPU_ONLINE:
case CPU_DOWN_FAILED:
case CPU_DEAD:
diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
index bdef916..d40d417 100644
--- a/drivers/oprofile/timer_int.c
+++ b/drivers/oprofile/timer_int.c
@@ -81,12 +81,10 @@ static int oprofile_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
smp_call_function_single(cpu, __oprofile_hrtimer_start,
NULL, 1);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
__oprofile_hrtimer_stop(cpu);
break;
}
diff --git a/drivers/pci/host/pci-xgene-msi.c b/drivers/pci/host/pci-xgene-msi.c
index 996327c..a851a9b 100644
--- a/drivers/pci/host/pci-xgene-msi.c
+++ b/drivers/pci/host/pci-xgene-msi.c
@@ -450,11 +450,9 @@ static int xgene_msi_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
xgene_msi_hwirq_alloc(cpu);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
xgene_msi_hwirq_free(cpu);
break;
default:
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index 482b22d..38d15cb 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -1476,9 +1476,7 @@ static int rapl_cpu_callback(struct notifier_block *nfb,
phy_package_id = topology_physical_package_id(cpu);
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
case CPU_DOWN_FAILED:
- case CPU_DOWN_FAILED_FROZEN:
rp = find_package_by_id(phy_package_id);
if (rp)
++rp->nr_cpus;
@@ -1486,7 +1484,6 @@ static int rapl_cpu_callback(struct notifier_block *nfb,
rapl_add_package(cpu);
break;
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
rp = find_package_by_id(phy_package_id);
if (!rp)
break;
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 98d06d1..20fdad7 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -2518,12 +2518,10 @@ static int bnx2fc_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
printk(PFX "CPU %x online: Create Rx thread\n", cpu);
bnx2fc_percpu_thread_create(cpu);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
bnx2fc_percpu_thread_destroy(cpu);
break;
diff --git a/drivers/scsi/bnx2i/bnx2i_init.c b/drivers/scsi/bnx2i/bnx2i_init.c
index c8b410c..257dcca 100644
--- a/drivers/scsi/bnx2i/bnx2i_init.c
+++ b/drivers/scsi/bnx2i/bnx2i_init.c
@@ -480,13 +480,11 @@ static int bnx2i_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
printk(KERN_INFO "bnx2i: CPU %x online: Create Rx thread\n",
cpu);
bnx2i_percpu_thread_create(cpu);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
printk(KERN_INFO "CPU %x offline: Remove Rx thread\n", cpu);
bnx2i_percpu_thread_destroy(cpu);
break;
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index ec193a8..6ccc97c 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -1379,12 +1379,10 @@ static int fcoe_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
FCOE_DBG("CPU %x online: Create Rx thread\n", cpu);
fcoe_percpu_thread_create(cpu);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
FCOE_DBG("CPU %x offline: Remove Rx thread\n", cpu);
fcoe_percpu_thread_destroy(cpu);
break;
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 7dbbb29..a76141c 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -858,9 +858,7 @@ static int virtscsi_cpu_callback(struct notifier_block *nfb,
struct virtio_scsi *vscsi = container_of(nfb, struct virtio_scsi, nb);
switch(action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
__virtscsi_set_affinity(vscsi, true);
break;
default:
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
index f926224..436bf1e 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
@@ -952,14 +952,12 @@ cfs_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
switch (action) {
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
spin_lock(&cpt_data.cpt_lock);
cpt_data.cpt_version++;
spin_unlock(&cpt_data.cpt_lock);
default:
- if (action != CPU_DEAD && action != CPU_DEAD_FROZEN) {
+ if (action != CPU_DEAD) {
CDEBUG(D_INFO, "CPU changed [cpu %u action %lx]\n",
cpu, action);
break;
diff --git a/fs/buffer.c b/fs/buffer.c
index 1cf7a53..339adac 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3384,7 +3384,7 @@ static void buffer_exit_cpu(int cpu)
static int buffer_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
- if (action == CPU_DEAD || action == CPU_DEAD_FROZEN)
+ if (action == CPU_DEAD)
buffer_exit_cpu((unsigned long)hcpu);
return NOTIFY_OK;
}
diff --git a/kernel/events/core.c b/kernel/events/core.c
index ae16867..2b9d351 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -9085,7 +9085,7 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
{
unsigned int cpu = (long)hcpu;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
case CPU_DOWN_FAILED:
diff --git a/kernel/padata.c b/kernel/padata.c
index b38bea9..a5d004e 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -844,9 +844,7 @@ static int padata_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
case CPU_DOWN_FAILED:
- case CPU_DOWN_FAILED_FROZEN:
if (!pinst_has_cpu(pinst, cpu))
break;
mutex_lock(&pinst->lock);
@@ -857,9 +855,7 @@ static int padata_cpu_callback(struct notifier_block *nfb,
break;
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
if (!pinst_has_cpu(pinst, cpu))
break;
mutex_lock(&pinst->lock);
diff --git a/kernel/profile.c b/kernel/profile.c
index a7bcd28..932e377 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -335,7 +335,6 @@ static int profile_cpu_callback(struct notifier_block *info,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
node = cpu_to_mem(cpu);
per_cpu(cpu_profile_flip, cpu) = 0;
if (!per_cpu(cpu_profile_hits, cpu)[1]) {
@@ -361,14 +360,11 @@ out_free:
__free_page(page);
return notifier_from_errno(-ENOMEM);
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
if (prof_cpu_mask != NULL)
cpumask_set_cpu(cpu, prof_cpu_mask);
break;
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
if (prof_cpu_mask != NULL)
cpumask_clear_cpu(cpu, prof_cpu_mask);
if (per_cpu(cpu_profile_hits, cpu)[0]) {
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 9f75f25..04adfb0 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3953,20 +3953,17 @@ int rcu_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
rcu_prepare_cpu(cpu);
rcu_prepare_kthreads(cpu);
rcu_spawn_all_nocb_kthreads(cpu);
break;
case CPU_ONLINE:
- case CPU_DOWN_FAILED:
rcu_boost_kthread_setaffinity(rnp, -1);
break;
case CPU_DOWN_PREPARE:
rcu_boost_kthread_setaffinity(rnp, cpu);
break;
case CPU_DYING:
- case CPU_DYING_FROZEN:
for_each_rcu_flavor(rsp)
rcu_cleanup_dying_cpu(rsp);
break;
@@ -3976,9 +3973,7 @@ int rcu_cpu_notify(struct notifier_block *self,
}
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
for_each_rcu_flavor(rsp) {
rcu_cleanup_dead_cpu(cpu, rsp);
do_nocb_deferred_wakeup(per_cpu_ptr(rsp->rda, cpu));
diff --git a/kernel/relay.c b/kernel/relay.c
index 0b4570c..f1d1b8f 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -522,7 +522,6 @@ static int relay_hotcpu_callback(struct notifier_block *nb,
switch(action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
mutex_lock(&relay_channels_mutex);
list_for_each_entry(chan, &relay_channels, list) {
if (chan->buf[hotcpu])
@@ -539,7 +538,6 @@ static int relay_hotcpu_callback(struct notifier_block *nb,
mutex_unlock(&relay_channels_mutex);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
/* No need to flush the cpu : will be flushed upon
* final relay_flush() call. */
break;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 36b00eb..5f08f4e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -389,11 +389,8 @@ hotplug_hrtick(struct notifier_block *nfb, unsigned long action, void *hcpu)
switch (action) {
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
hrtick_clear(cpu_rq(cpu));
return NOTIFY_OK;
}
@@ -5424,7 +5421,7 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
unsigned long flags;
struct rq *rq = cpu_rq(cpu);
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
rq->calc_load_update = calc_load_update;
@@ -5486,7 +5483,7 @@ static void set_cpu_rq_start_time(void)
static int sched_cpu_active(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_STARTING:
set_cpu_rq_start_time();
return NOTIFY_OK;
@@ -5509,7 +5506,7 @@ static int sched_cpu_active(struct notifier_block *nfb,
static int sched_cpu_inactive(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_DOWN_PREPARE:
set_cpu_active((long)hcpu, false);
return NOTIFY_OK;
@@ -6710,7 +6707,7 @@ static int sched_domains_numa_masks_update(struct notifier_block *nfb,
{
int cpu = (long)hcpu;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
sched_domains_numa_masks_set(cpu);
break;
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6e2e348..34d667c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7497,7 +7497,7 @@ void nohz_balance_enter_idle(int cpu)
static int sched_ilb_notifier(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_DYING:
nohz_balance_exit_idle(smp_processor_id());
return NOTIFY_OK;
diff --git a/kernel/smp.c b/kernel/smp.c
index 0785447..264d6e6 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -41,7 +41,6 @@ hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu)
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
if (!zalloc_cpumask_var_node(&cfd->cpumask, GFP_KERNEL,
cpu_to_node(cpu)))
return notifier_from_errno(-ENOMEM);
@@ -54,17 +53,14 @@ hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu)
#ifdef CONFIG_HOTPLUG_CPU
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
- /* Fall-through to the CPU_DEAD[_FROZEN] case. */
+ /* Fall-through to the CPU_DEAD case. */
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
free_cpumask_var(cfd->cpumask);
free_percpu(cfd->csd);
break;
case CPU_DYING:
- case CPU_DYING_FROZEN:
/*
* The IPIs for the smp-call-function callbacks queued by other
* CPUs might arrive late, either due to hardware latencies or
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 479e443..6374fe4 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -732,7 +732,6 @@ static int cpu_callback(struct notifier_block *nfb, unsigned long action,
switch (action) {
#ifdef CONFIG_HOTPLUG_CPU
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
takeover_tasklets((unsigned long)hcpu);
break;
#endif /* CONFIG_HOTPLUG_CPU */
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 435b885..cd02a1d 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -1668,13 +1668,11 @@ static int hrtimer_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
init_hrtimers_cpu(scpu);
break;
#ifdef CONFIG_HOTPLUG_CPU
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
migrate_hrtimers(scpu);
break;
#endif
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 7c7ec45..d8817ad 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -295,7 +295,7 @@ static int tick_nohz_cpu_down_callback(struct notifier_block *nfb,
{
unsigned int cpu = (unsigned long)hcpu;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_DOWN_PREPARE:
/*
* The boot CPU handles housekeeping duty (unbound timers,
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 84190f0..5b70cdc 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1598,7 +1598,6 @@ static int timer_cpu_notify(struct notifier_block *self,
{
switch (action) {
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
migrate_timers((long)hcpu);
break;
default:
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 6260717..b35759b 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -4609,7 +4609,6 @@ static int rb_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
if (cpumask_test_cpu(cpu, buffer->cpumask))
return NOTIFY_OK;
@@ -4639,7 +4638,6 @@ static int rb_cpu_notify(struct notifier_block *self,
cpumask_set_cpu(cpu, buffer->cpumask);
break;
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
/*
* Do nothing.
* If we were to free the buffer, then the user would
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 811edb7..7b13657 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4501,7 +4501,7 @@ static int workqueue_cpu_up_callback(struct notifier_block *nfb,
struct workqueue_struct *wq;
int pi;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_UP_PREPARE:
for_each_cpu_worker_pool(pool, cpu) {
if (pool->nr_workers)
@@ -4548,7 +4548,7 @@ static int workqueue_cpu_down_callback(struct notifier_block *nfb,
struct work_struct unbind_work;
struct workqueue_struct *wq;
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_DOWN_PREPARE:
/* unbinding per-cpu workers should happen on the local CPU */
INIT_WORK_ONSTACK(&unbind_work, wq_unbind_fn);
diff --git a/lib/cpu-notifier-error-inject.c b/lib/cpu-notifier-error-inject.c
index 707ca24..7f651e3 100644
--- a/lib/cpu-notifier-error-inject.c
+++ b/lib/cpu-notifier-error-inject.c
@@ -11,9 +11,7 @@ MODULE_PARM_DESC(priority, "specify cpu notifier priority");
static struct notifier_err_inject cpu_notifier_err_inject = {
.actions = {
{ NOTIFIER_ERR_INJECT_ACTION(CPU_UP_PREPARE) },
- { NOTIFIER_ERR_INJECT_ACTION(CPU_UP_PREPARE_FROZEN) },
{ NOTIFIER_ERR_INJECT_ACTION(CPU_DOWN_PREPARE) },
- { NOTIFIER_ERR_INJECT_ACTION(CPU_DOWN_PREPARE_FROZEN) },
{}
}
};
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index f051d69..44bb9f4 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -173,7 +173,7 @@ static int percpu_counter_hotcpu_callback(struct notifier_block *nb,
struct percpu_counter *fbc;
compute_batch_value();
- if (action != CPU_DEAD && action != CPU_DEAD_FROZEN)
+ if (action != CPU_DEAD)
return NOTIFY_OK;
cpu = (unsigned long)hcpu;
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index f9ebe1c..b4e9302 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -1471,7 +1471,7 @@ static int radix_tree_callback(struct notifier_block *nfb,
struct radix_tree_node *node;
/* Free per-cpu pool of perloaded nodes */
- if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) {
+ if (action == CPU_DEAD) {
rtp = &per_cpu(radix_tree_preloads, cpu);
while (rtp->nr) {
node = rtp->nodes;
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index acb93c5..7feada6 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2211,7 +2211,7 @@ static int memcg_cpu_hotplug_callback(struct notifier_block *nb,
if (action == CPU_ONLINE)
return NOTIFY_OK;
- if (action != CPU_DEAD && action != CPU_DEAD_FROZEN)
+ if (action != CPU_DEAD)
return NOTIFY_OK;
stock = &per_cpu(memcg_stock, cpu);
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 5cccc12..e1f3c9d 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2028,7 +2028,7 @@ ratelimit_handler(struct notifier_block *self, unsigned long action,
void *hcpu)
{
- switch (action & ~CPU_TASKS_FROZEN) {
+ switch (action) {
case CPU_ONLINE:
case CPU_DEAD:
writeback_set_ratelimit();
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5b5240b..4973bc2 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6026,7 +6026,7 @@ static int page_alloc_cpu_notify(struct notifier_block *self,
{
int cpu = (unsigned long)hcpu;
- if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) {
+ if (action == CPU_DEAD) {
lru_add_drain_cpu(cpu);
drain_pages(cpu);
diff --git a/mm/slab.c b/mm/slab.c
index bbd0b47..7b268c2 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1236,18 +1236,15 @@ static int cpuup_callback(struct notifier_block *nfb,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
mutex_lock(&slab_mutex);
err = cpuup_prepare(cpu);
mutex_unlock(&slab_mutex);
break;
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
start_cpu_timer(cpu);
break;
#ifdef CONFIG_HOTPLUG_CPU
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
/*
* Shutdown cache reaper. Note that the slab_mutex is
* held so that if cache_reap() is invoked it cannot do
@@ -1259,11 +1256,9 @@ static int cpuup_callback(struct notifier_block *nfb,
per_cpu(slab_reap_work, cpu).work.func = NULL;
break;
case CPU_DOWN_FAILED:
- case CPU_DOWN_FAILED_FROZEN:
start_cpu_timer(cpu);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
/*
* Even if all the cpus of a node are down, we don't free the
* kmem_cache_node of any cache. This to avoid a race between
@@ -1275,7 +1270,6 @@ static int cpuup_callback(struct notifier_block *nfb,
/* fall through */
#endif
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
mutex_lock(&slab_mutex);
cpuup_canceled(cpu);
mutex_unlock(&slab_mutex);
diff --git a/mm/slub.c b/mm/slub.c
index f68c0e5..2432cb5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3783,9 +3783,7 @@ static int slab_cpuup_callback(struct notifier_block *nfb,
switch (action) {
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
mutex_lock(&slab_mutex);
list_for_each_entry(s, &slab_caches, list) {
local_irq_save(flags);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 8286938..f97563f 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3553,7 +3553,7 @@ static int cpu_callback(struct notifier_block *nfb, unsigned long action,
{
int nid;
- if (action == CPU_ONLINE || action == CPU_ONLINE_FROZEN) {
+ if (action == CPU_ONLINE) {
for_each_node_state(nid, N_MEMORY) {
pg_data_t *pgdat = NODE_DATA(nid);
const struct cpumask *mask;
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 4f5cd97..dcca6c1 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1489,22 +1489,18 @@ static int vmstat_cpuup_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
refresh_zone_stat_thresholds();
node_set_state(cpu_to_node(cpu), N_CPU);
cpumask_set_cpu(cpu, cpu_stat_off);
break;
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
cancel_delayed_work_sync(&per_cpu(vmstat_work, cpu));
cpumask_clear_cpu(cpu, cpu_stat_off);
break;
case CPU_DOWN_FAILED:
- case CPU_DOWN_FAILED_FROZEN:
cpumask_set_cpu(cpu, cpu_stat_off);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
refresh_zone_stat_thresholds();
vmstat_cpu_dead(cpu_to_node(cpu));
break;
diff --git a/net/core/dev.c b/net/core/dev.c
index a8e4dd4..3bf474c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -7252,7 +7252,7 @@ static int dev_cpu_callback(struct notifier_block *nfb,
unsigned int cpu, oldcpu = (unsigned long)ocpu;
struct softnet_data *sd, *oldsd;
- if (action != CPU_DEAD && action != CPU_DEAD_FROZEN)
+ if (action != CPU_DEAD)
return NOTIFY_OK;
local_irq_disable();
diff --git a/net/core/flow.c b/net/core/flow.c
index 1033725..5468724 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -419,13 +419,11 @@ static int flow_cache_cpu(struct notifier_block *nfb,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
res = flow_cache_cpu_prepare(fc, cpu);
if (res)
return notifier_from_errno(res);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
__flow_cache_shrink(fc, fcp, 0);
break;
}
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 2a6a1fd..85d92aa 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -665,26 +665,20 @@ static int iucv_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
if (alloc_iucv_data(cpu))
return notifier_from_errno(-ENOMEM);
break;
case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
free_iucv_data(cpu);
break;
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
case CPU_DOWN_FAILED:
- case CPU_DOWN_FAILED_FROZEN:
if (!iucv_path_table)
break;
smp_call_function_single(cpu, iucv_declare_cpu, NULL, 1);
break;
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
if (!iucv_path_table)
break;
cpumask_copy(&cpumask, &iucv_buffer_cpumask);
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 98c95f2..eb55847 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -252,11 +252,9 @@ static int kvm_timer_cpu_notify(struct notifier_block *self,
{
switch (action) {
case CPU_STARTING:
- case CPU_STARTING_FROZEN:
kvm_timer_init_interrupt(NULL);
break;
case CPU_DYING:
- case CPU_DYING_FROZEN:
disable_percpu_irq(host_vtimer_irq);
break;
}
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index bc40137..11fd236 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -2069,11 +2069,9 @@ static int vgic_cpu_notify(struct notifier_block *self,
{
switch (action) {
case CPU_STARTING:
- case CPU_STARTING_FROZEN:
vgic_init_maintenance_interrupt(NULL);
break;
case CPU_DYING:
- case CPU_DYING_FROZEN:
disable_percpu_irq(vgic->maint_irq);
break;
}
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d8db2f8f..af5a398 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3024,7 +3024,6 @@ static int hardware_enable_all(void)
static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
void *v)
{
- val &= ~CPU_TASKS_FROZEN;
switch (val) {
case CPU_DYING:
hardware_disable();
--
2.4.3
--
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