Andreas Herrmann 05366b68ce cpufreq / powernow-k8: Remove usage of smp_processor_id() in preemptible code ...

commit e4df1cbcc1 upstream.

Commit 6889125b8b
(cpufreq/powernow-k8: workqueue user shouldn't migrate the kworker to another CPU)
causes powernow-k8 to trigger a preempt warning, e.g.:

  BUG: using smp_processor_id() in preemptible [00000000] code: cpufreq/3776
  caller is powernowk8_target+0x20/0x49
  Pid: 3776, comm: cpufreq Not tainted 3.6.0 #9
  Call Trace:
   [<ffffffff8125b447>] debug_smp_processor_id+0xc7/0xe0
   [<ffffffff814877e7>] powernowk8_target+0x20/0x49
   [<ffffffff81482b02>] __cpufreq_driver_target+0x82/0x8a
   [<ffffffff81484fc6>] cpufreq_governor_performance+0x4e/0x54
   [<ffffffff81482c50>] __cpufreq_governor+0x8c/0xc9
   [<ffffffff81482e6f>] __cpufreq_set_policy+0x1a9/0x21e
   [<ffffffff814839af>] store_scaling_governor+0x16f/0x19b
   [<ffffffff81484f16>] ? cpufreq_update_policy+0x124/0x124
   [<ffffffff8162b4a5>] ? _raw_spin_unlock_irqrestore+0x2c/0x49
   [<ffffffff81483640>] store+0x60/0x88
   [<ffffffff811708c0>] sysfs_write_file+0xf4/0x130
   [<ffffffff8111243b>] vfs_write+0xb5/0x151
   [<ffffffff811126e0>] sys_write+0x4a/0x71
   [<ffffffff816319a9>] system_call_fastpath+0x16/0x1b

Fix this by by always using work_on_cpu().

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

2012-10-30 23:26:54 +00:00

..

acpi-cpufreq.c

[CPUFREQ] Handle CPUs with different capabilities in acpi-cpufreq

2011-07-13 18:29:49 -04:00

cpufreq_conservative.c

nohz: Fix update_ts_time_stat idle accounting

2011-09-08 11:10:55 +02:00

cpufreq_ondemand.c

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2011-10-26 17:15:03 +02:00

cpufreq_performance.c

[CPUFREQ] use dynamic debug instead of custom infrastructure

2011-05-04 11:50:57 -04:00

cpufreq_powersave.c

[CPUFREQ] use dynamic debug instead of custom infrastructure

2011-05-04 11:50:57 -04:00

cpufreq_stats.c

cpufreq: cpufreq_stats.c is a module, and should include module.h

2011-10-31 19:31:31 -04:00

cpufreq_userspace.c

[CPUFREQ] use dynamic debug instead of custom infrastructure

2011-05-04 11:50:57 -04:00

cpufreq-nforce2.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

cpufreq.c

cpufreq: expose a cpufreq_quick_get_max routine

2011-06-28 13:54:26 -07:00

db8500-cpufreq.c

[CPUFREQ] db8500: fix build error due to undeclared i variable

2011-11-11 22:28:33 -05:00

e_powersaver.c

[CPUFREQ] e_powersaver: Allow user to lower maximum voltage

2011-10-26 17:19:46 -04:00

elanfreq.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

exynos4210-cpufreq.c

[CPUFREQ] ARM Exynos4210 PM/Suspend compatibility with different bootloaders

2011-10-26 17:19:46 -04:00

freq_table.c

[CPUFREQ] use dynamic debug instead of custom infrastructure

2011-05-04 11:50:57 -04:00

gx-suspmod.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

Kconfig

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2011-07-25 22:59:39 -07:00

Kconfig.arm

[CPUFREQ] Move compile for S3C64XX cpufreq to /drivers/cpufreq

2011-07-13 18:29:53 -04:00

Kconfig.powerpc

powerpc/cpufreq: Add cpufreq driver for Momentum Maple boards

2011-07-19 15:13:04 +10:00

Kconfig.x86

Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-05-19 17:55:12 -07:00

longhaul.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

longhaul.h

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

longrun.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

Makefile

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2011-07-25 22:59:39 -07:00

maple-cpufreq.c

powerpc/cpufreq: Add cpufreq driver for Momentum Maple boards

2011-07-19 15:13:04 +10:00

mperf.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

mperf.h

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

p4-clockmod.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

pcc-cpufreq.c

drivers/cpufreq/pcc-cpufreq.c: avoid NULL pointer dereference

2011-09-14 18:09:38 -07:00

powernow-k6.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

powernow-k7.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

powernow-k7.h

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

powernow-k8.c

cpufreq / powernow-k8: Remove usage of smp_processor_id() in preemptible code

2012-10-30 23:26:54 +00:00

powernow-k8.h

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

s3c64xx-cpufreq.c

cpufreq: Fix build of s3c64xx cpufreq driver for header change

2011-10-31 19:31:32 -04:00

s5pv210-cpufreq.c

[CPUFREQ] s5pv210: make needlessly global symbols static

2011-07-13 18:30:00 -04:00

sc520_freq.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

speedstep-centrino.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

speedstep-ich.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

speedstep-lib.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

speedstep-lib.h

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

speedstep-smi.c

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00