Mike Travis wrote:
> This set of patches improves the work_on_cpu() function to
> eliminate circular lock dependencies from occurring by requiring
> the caller to insure the cpu does not go offline. This effectively
> models the previous behaviour using set_cpus_allowed().
>
> The other fix is to use a separate work queue for work_on_cpu so
> it does not clash with kevent items that might already be on the
> queue from the same caller.
>
> This fixes the boot up and suspend/resume to disk problems previously
> seen.
>
> Signed-off-by: Mike Travis <travis@xxxxxxx>
> Cc: Dieter Ries <clip2@xxxxxx>
> Cc: Maciej Rutecki <maciej.rutecki@xxxxxxxxx>
> Cc: Dave Jones <davej@xxxxxxxxxx>
> Cc: <cpufreq@xxxxxxxxxxxxxxx>
>
Hi Ingo,
If you are ready for these, I've pushed them to the cpus4096-for-ingo
tree. (Note it's been renamed.)
Thanks!
Mike
---
The following changes since commit c99dbbe9f8f6b3e9383e64710217e873431d1c31:
Mike Travis (1):
sched: fix warning on ia64
are available in the git repository at:
ssh://master.kernel.org/pub/scm/linux/kernel/git/travis/linux-2.6-cpus4096-for-ingo.git master
Mike Travis (1):
cpufreq: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write
Rusty Russell (2):
work_on_cpu: don't try to get_online_cpus() in work_on_cpu.
work_on_cpu: Use our own workqueue.
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 22 +++++++++-------------
kernel/workqueue.c | 20 ++++++++++----------
2 files changed, 19 insertions(+), 23 deletions(-)
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