Subject: + kernel-misc-replace-__get_cpu_var-uses.patch added to -mm tree
To: cl@xxxxxxxxx,tj@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 04 Mar 2014 14:27:14 -0800
The patch titled
Subject: kernel misc: replace __get_cpu_var uses
has been added to the -mm tree. Its filename is
kernel-misc-replace-__get_cpu_var-uses.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kernel-misc-replace-__get_cpu_var-uses.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kernel-misc-replace-__get_cpu_var-uses.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: Christoph Lameter <cl@xxxxxxxxx>
Subject: kernel misc: replace __get_cpu_var uses
Replace uses of __get_cpu_var for address calculation with this_cpu_ptr.
Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/printk/printk.c | 8 ++++----
kernel/smp.c | 6 +++---
2 files changed, 7 insertions(+), 7 deletions(-)
diff -puN kernel/printk/printk.c~kernel-misc-replace-__get_cpu_var-uses kernel/printk/printk.c
--- a/kernel/printk/printk.c~kernel-misc-replace-__get_cpu_var-uses
+++ a/kernel/printk/printk.c
@@ -2448,7 +2448,7 @@ static void wake_up_klogd_work_func(stru
int pending = __this_cpu_xchg(printk_pending, 0);
if (pending & PRINTK_PENDING_SCHED) {
- char *buf = __get_cpu_var(printk_sched_buf);
+ char *buf = this_cpu_ptr(printk_sched_buf);
pr_warn("[sched_delayed] %s", buf);
}
@@ -2466,7 +2466,7 @@ void wake_up_klogd(void)
preempt_disable();
if (waitqueue_active(&log_wait)) {
this_cpu_or(printk_pending, PRINTK_PENDING_WAKEUP);
- irq_work_queue(&__get_cpu_var(wake_up_klogd_work));
+ irq_work_queue(this_cpu_ptr(&wake_up_klogd_work));
}
preempt_enable();
}
@@ -2479,14 +2479,14 @@ int printk_sched(const char *fmt, ...)
int r;
local_irq_save(flags);
- buf = __get_cpu_var(printk_sched_buf);
+ buf = this_cpu_ptr(printk_sched_buf);
va_start(args, fmt);
r = vsnprintf(buf, PRINTK_BUF_SIZE, fmt, args);
va_end(args);
__this_cpu_or(printk_pending, PRINTK_PENDING_SCHED);
- irq_work_queue(&__get_cpu_var(wake_up_klogd_work));
+ irq_work_queue(this_cpu_ptr(&wake_up_klogd_work));
local_irq_restore(flags);
return r;
diff -puN kernel/smp.c~kernel-misc-replace-__get_cpu_var-uses kernel/smp.c
--- a/kernel/smp.c~kernel-misc-replace-__get_cpu_var-uses
+++ a/kernel/smp.c
@@ -146,7 +146,7 @@ static int generic_exec_single(int cpu,
if (!csd) {
csd = &csd_stack;
if (!wait)
- csd = &__get_cpu_var(csd_data);
+ csd = &this_cpu_ptr(csd_data);
}
csd_lock(csd);
@@ -191,7 +191,7 @@ void generic_smp_call_function_single_in
*/
WARN_ON_ONCE(!cpu_online(smp_processor_id()));
- entry = llist_del_all(&__get_cpu_var(call_single_queue));
+ entry = llist_del_all(this_cpu_ptr(&call_single_queue));
entry = llist_reverse_order(entry);
llist_for_each_entry_safe(csd, csd_next, entry, llist) {
@@ -357,7 +357,7 @@ void smp_call_function_many(const struct
return;
}
- cfd = &__get_cpu_var(cfd_data);
+ cfd = this_cpu_ptr(&cfd_data);
cpumask_and(cfd->cpumask, mask, cpu_online_mask);
cpumask_clear_cpu(this_cpu, cfd->cpumask);
_
Patches currently in -mm which might be from cl@xxxxxxxxx are
mm-close-pagetail-race.patch
mm-page_alloc-make-first_page-visible-before-pagetail.patch
kthread-ensure-locality-of-task_struct-allocations.patch
mm-slab-slub-use-page-list-consistently-instead-of-page-lru.patch
kobject-dont-block-for-each-kobject_uevent.patch
kobject-dont-block-for-each-kobject_uevent-v2.patch
slub-do-not-drop-slab_mutex-for-sysfs_slab_add.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2-fix.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2-checkpatch-fixes.patch
linux-next.patch
percpu-add-raw_cpu_ops.patch
mm-use-raw_cpu-ops-for-determining-current-numa-node.patch
modules-use-raw_cpu_write-for-initialization-of-per-cpu-refcount.patch
net-replace-__this_cpu_inc-in-routec-with-raw_cpu_inc.patch
percpu-add-preemption-checks-to-__this_cpu-ops.patch
mm-replace-__get_cpu_var-uses-with-this_cpu_ptr.patch
tracing-replace-__get_cpu_var-uses-with-this_cpu_ptr.patch
percpu-replace-__get_cpu_var-with-this_cpu_ptr.patch
kernel-misc-replace-__get_cpu_var-uses.patch
drivers-char-random-replace-__get_cpu_var-uses.patch
drivers-cpuidle-replace-__get_cpu_var-uses-for-address-calculation.patch
drivers-oprofile-replace-__get_cpu_var-uses-for-address-calculation.patch
drivers-leds-replace-__get_cpu_var-use-through-this_cpu_ptr.patch
drivers-clocksource-replace-__get_cpu_var-used-for-address-calculation.patch
parisc-replace-__get_cpu_var-uses-for-address-calculation.patch
metag-replace-__get_cpu_var-uses-for-address-calculation.patch
drivers-net-ethernet-tile-replace-__get_cpu_var-uses-for-address-calculation.patch
drivers-net-ethernet-tile-__get_cpu_var-call-introduced-in-314.patch
tilegx-another-case-of-get_cpu_var.patch
time-replace-__get_cpu_var-uses.patch
scheduler-replace-__get_cpu_var-with-this_cpu_ptr.patch
tick-sched-fix-two-new-uses-of-__get_cpu_ptr.patch
block-replace-__this_cpu_ptr-with-raw_cpu_ptr.patch
rcu-replace-__this_cpu_ptr-uses-with-raw_cpu_ptr.patch
watchdog-replace-__raw_get_cpu_var-uses.patch
net-replace-get_cpu_var-through-this_cpu_ptr.patch
md-replace-__this_cpu_ptr-with-raw_cpu_ptr.patch
irqchips-replace-__this_cpu_ptr-uses.patch
x86-replace-__get_cpu_var-uses.patch
x86-change-__get_cpu_var-calls-introduced-in-314.patch
uv-replace-__get_cpu_var.patch
arm-replace-__this_cpu_ptr-with-raw_cpu_ptr.patch
mips-replace-__get_cpu_var-uses-in-fpu-emulator.patch
mips-replace-__get_cpu_var-uses.patch
s390-rename-__this_cpu_ptr-to-raw_cpu_ptr.patch
s390-replace-__get_cpu_var-uses.patch
s390-handle-new-__get_cpu_var-calls-added-in-314.patch
ia64-replace-__get_cpu_var-uses.patch
powerpc-replace-__get_cpu_var-uses.patch
powerpc-handle-new-__get_cpu_var-calls-in-314.patch
sparc-replace-__get_cpu_var-uses.patch
tile-replace-__get_cpu_var-uses.patch
blackfin-replace-__get_cpu_var-uses.patch
avr32-replace-__get_cpu_var-with-__this_cpu_write.patch
alpha-replace-__get_cpu_var.patch
sh-replace-__get_cpu_var-uses.patch
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