The patch titled
kernel/smp.c: relocate some code
has been removed from the -mm tree. Its filename was
kernel-smpc-relocate-some-code.patch
This patch was dropped because it is obsolete
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: kernel/smp.c: relocate some code
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Move hotplug_cfd() to the end of the file so that we can see what changes
the next patch (generic-ipi: fix the race between
generic_smp_call_function_*() and hotplug_cfd()) actually makes to that
function.
Cc: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Jens Axboe <jens.axboe@xxxxxxxxxx>
Cc: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/smp.c | 102 ++++++++++++++++++++++++-------------------------
1 file changed, 51 insertions(+), 51 deletions(-)
diff -puN kernel/smp.c~kernel-smpc-relocate-some-code kernel/smp.c
--- a/kernel/smp.c~kernel-smpc-relocate-some-code
+++ a/kernel/smp.c
@@ -40,57 +40,6 @@ struct call_single_queue {
static DEFINE_PER_CPU(struct call_function_data, cfd_data);
-static int
-hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu)
-{
- long cpu = (long)hcpu;
- struct call_function_data *cfd = &per_cpu(cfd_data, cpu);
-
- 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 NOTIFY_BAD;
- break;
-
-#ifdef CONFIG_HOTPLUG_CPU
- case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
-
- case CPU_DEAD:
- case CPU_DEAD_FROZEN:
- free_cpumask_var(cfd->cpumask);
- break;
-#endif
- };
-
- return NOTIFY_OK;
-}
-
-static struct notifier_block __cpuinitdata hotplug_cfd_notifier = {
- .notifier_call = hotplug_cfd,
-};
-
-static int __cpuinit init_call_single_data(void)
-{
- void *cpu = (void *)(long)smp_processor_id();
- int i;
-
- for_each_possible_cpu(i) {
- struct call_single_queue *q = &per_cpu(call_single_queue, i);
-
- spin_lock_init(&q->lock);
- INIT_LIST_HEAD(&q->list);
- }
-
- hotplug_cfd(&hotplug_cfd_notifier, CPU_UP_PREPARE, cpu);
- register_cpu_notifier(&hotplug_cfd_notifier);
-
- return 0;
-}
-early_initcall(init_call_single_data);
-
/*
* csd_lock/csd_unlock used to serialize access to per-cpu csd resources
*
@@ -489,3 +438,54 @@ void ipi_call_unlock_irq(void)
{
spin_unlock_irq(&call_function.lock);
}
+
+static int
+hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu)
+{
+ long cpu = (long)hcpu;
+ struct call_function_data *cfd = &per_cpu(cfd_data, cpu);
+
+ 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 NOTIFY_BAD;
+ break;
+
+#ifdef CONFIG_HOTPLUG_CPU
+ case CPU_UP_CANCELED:
+ case CPU_UP_CANCELED_FROZEN:
+
+ case CPU_DEAD:
+ case CPU_DEAD_FROZEN:
+ free_cpumask_var(cfd->cpumask);
+ break;
+#endif
+ };
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block __cpuinitdata hotplug_cfd_notifier = {
+ .notifier_call = hotplug_cfd,
+};
+
+static int __cpuinit init_call_single_data(void)
+{
+ void *cpu = (void *)(long)smp_processor_id();
+ int i;
+
+ for_each_possible_cpu(i) {
+ struct call_single_queue *q = &per_cpu(call_single_queue, i);
+
+ spin_lock_init(&q->lock);
+ INIT_LIST_HEAD(&q->list);
+ }
+
+ hotplug_cfd(&hotplug_cfd_notifier, CPU_UP_PREPARE, cpu);
+ register_cpu_notifier(&hotplug_cfd_notifier);
+
+ return 0;
+}
+early_initcall(init_call_single_data);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
linux-next.patch
next-remove-localversion.patch
i-need-old-gcc.patch
revert-pty-rework-the-pty-layer-to-use-the-normal-buffering-logic.patch
arch-x86-kernel-cpu-cpufreq-acpi-cpufreqc-avoid-cross-cpu-interrupts-by-using-smp_call_function_any.patch
arch-x86-kernel-tscc-smi-workaround-for-pit_expect_msb-checkpatch-fixes.patch
x86-add-reboot-fixup-for-compulab-sbc-fitpc2-board-cleanup.patch
platform_device_add_data-use-kmemdup.patch
timer-stats-fix-del_timer_sync-and-try_to_del_timer_sync.patch
input-drivers-input-xpadc-improve-xbox-360-wireless-support-and-add-sysfs-interface.patch
input-documentation-input-xpadtxt-update-for-new-driver-functionality.patch
leds-gpio-leds-fix-typographics-fault-checkpatch-fixes.patch
leds-fix-coding-style-in-worker-thread-code-for-ledtrig-gpio-checkpatch-fixes.patch
proc-connector-add-event-for-process-becoming-session-leader.patch
3x59x-fix-pci-resource-management-checkpatch-fixes.patch
bluetooth-fix-for-acer-bluetooth-optical-rechargeable-mouse-fix.patch
scsi-make-scsi-sg-v4-driver-enabled-by-default-and-remove-experimental-dependency-since-udev-depends-on-bsg-checkpatch-fixes.patch
drivers-usb-gadget-s3c2410_udcc-fix.patch
raw-fix-rawctl-compat-ioctls-breakage-on-amd64-and-itanic.patch
libfs-make-simple_read_from_buffer-conventional.patch
fs-fix-overflow-in-sys_mount-for-in-kernel-calls-fix.patch
vfs-optimize-touch_time-too-fix.patch
watchdog-add-sbc-fitpc2-watchdog-driver-fix.patch
mm-make-set_mempolicympol_interleav-n_high_memory-aware-fix.patch
revert-mm-prevent-balance_dirty_pages-from-doing-too-much-work.patch
arch-x86-oprofile-op_model_amdc-fix-op_amd_handle_ibs-return-type.patch
include-linux-clocksourceh-coding-style-tweaks.patch
mm-make-swap-token-dummies-static-inlines-fix.patch
readahead-add-blk_run_backing_dev-fix.patch
readahead-add-blk_run_backing_dev-fix-fix-2.patch
memory-hotplug-update-zone-pcp-at-memory-online-fix.patch
vmscan-dont-attempt-to-reclaim-anon-page-in-lumpy-reclaim-when-no-swap-space-is-avilable.patch
ummunotify-userspace-support-for-mmu-notifications-cleanup.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
m68k-count-can-reach-51-not-50.patch
arch-m68k-include-asm-motorola_pgalloch-fix-kunmap-arg.patch
printk-boot_delay-rename-printk_delay_msec-to-loops_per_msec-fix.patch
printk-add-printk_delay-to-make-messages-readable-for-some-scenarios-fix.patch
printk-add-printk_delay-to-make-messages-readable-for-some-scenarios-cleanup.patch
generic-ipi-make-struct-call_function_data-lockless-cleanup.patch
kernel-smpc-relocate-some-code.patch
mmc-register-mmci-omap-hs-using-platform_driver_probe.patch
rtc-add-driver-for-mxcs-internal-rtc-module-fix.patch
rtc-add-driver-for-mxcs-internal-rtc-module-fix-fix.patch
rtc-philips-nxp-pcf2123-driver-v03-fix.patch
kernel-irq-export-symbols-needed-by-gpio-add-intel-moorestown-platform-langwell-chip-gpio-driverpatch.patch
davinci-fb-frame-buffer-driver-for-ti-da8xx-omap-l1xx.patch
davinci-fb-frame-buffer-driver-for-ti-da8xx-omap-l1xx-v4-cleanup.patch
v3-minixfs-add-missing-directory-type-checking-checkpatch-fixes.patch
memcg-remove-the-overhead-associated-with-the-root-cgroup-fix.patch
memcg-add-comments-explaining-memory-barriers-checkpatch-fixes.patch
memory-controller-soft-limit-reclaim-on-contention-v9-fix.patch
exec-make-do_coredump-more-resilient-to-recursive-crashes-v9-checkpatch-fixes.patch
exec-let-do_coredump-limit-the-number-of-concurrent-dumps-to-pipes-v9-checkpatch-fixes.patch
elf-clean-up-fill_note_info-fix.patch
net-netfilter-ipvs-ip_vs_wrrc-use-lib-gcdc-fix.patch
reiser4-export-remove_from_page_cache-fix.patch
reiser4.patch
reiser4-remove-simple_prepare_write-usage-checkpatch-fixes.patch
fs-reiser4-contextc-current_is_pdflush-got-removed.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
getblk-handle-2tb-devices.patch
getblk-handle-2tb-devices-fix.patch
undeprecate-pci_find_device.patch
notify_change-callers-must-hold-i_mutex.patch
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