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  1. 29 6月, 2010 8 次提交
    • T
      workqueue: define masks for work flags and conditionalize STATIC flags · 22df02bb
      由 Tejun Heo 提交于 
      Work flags are about to see more traditional mask handling.  Define
WORK_STRUCT_*_BIT as the bit position constant and redefine
WORK_STRUCT_* as bit masks.  Also, make WORK_STRUCT_STATIC_* flags
conditional

While at it, re-define these constants as enums and use
WORK_STRUCT_STATIC instead of hard-coding 2 in
WORK_DATA_STATIC_INIT().
Signed-off-by: NTejun Heo <tj@kernel.org>
      22df02bb
    • T
      workqueue: merge feature parameters into flags · 97e37d7b
      由 Tejun Heo 提交于 
      Currently, __create_workqueue_key() takes @singlethread and
@freezeable paramters and store them separately in workqueue_struct.
Merge them into a single flags parameter and field and use
WQ_FREEZEABLE and WQ_SINGLE_THREAD.
Signed-off-by: NTejun Heo <tj@kernel.org>
      97e37d7b
    • T
      workqueue: misc/cosmetic updates · 4690c4ab
      由 Tejun Heo 提交于 
      Make the following updates in preparation of concurrency managed
workqueue.  None of these changes causes any visible behavior
difference.

* Add comments and adjust indentations to data structures and several
  functions.

* Rename wq_per_cpu() to get_cwq() and swap the position of two
  parameters for consistency.  Convert a direct per_cpu_ptr() access
  to wq->cpu_wq to get_cwq().

* Add work_static() and Update set_wq_data() such that it sets the
  flags part to WORK_STRUCT_PENDING | WORK_STRUCT_STATIC if static |
  @extra_flags.

* Move santiy check on work->entry emptiness from queue_work_on() to
  __queue_work() which all queueing paths share.

* Make __queue_work() take @cpu and @wq instead of @cwq.

* Restructure flush_work() and __create_workqueue_key() to make them
  easier to modify.
Signed-off-by: NTejun Heo <tj@kernel.org>
      4690c4ab
    • T
      workqueue: kill RT workqueue · c790bce0
      由 Tejun Heo 提交于 
      With stop_machine() converted to use cpu_stop, RT workqueue doesn't
have any user left.  Kill RT workqueue support.
Signed-off-by: NTejun Heo <tj@kernel.org>
      c790bce0
    • T
      acpi: use queue_work_on() instead of binding workqueue worker to cpu0 · 8fec62b2
      由 Tejun Heo 提交于 
      ACPI works need to be executed on cpu0 and acpi/osl.c achieves this by
creating singlethread workqueue and then binding it to cpu0 from a
work which is quite unorthodox.  Make it create regular workqueues and
use queue_work_on() instead.  This is in preparation of concurrency
managed workqueue and the extra workers won't be a problem after it's
implemented.
Signed-off-by: NTejun Heo <tj@kernel.org>
      8fec62b2
    • T
      kthread: implement kthread_data() · 82805ab7
      由 Tejun Heo 提交于 
      Implement kthread_data() which takes @task pointing to a kthread and
returns @data specified when creating the kthread.  The caller is
responsible for ensuring the validity of @task when calling this
function.
Signed-off-by: NTejun Heo <tj@kernel.org>
      82805ab7
    • T
      ivtv: use kthread_worker instead of workqueue · 7bc46560
      由 Tejun Heo 提交于 
      Upcoming workqueue updates will no longer guarantee fixed workqueue to
worker kthread association, so giving RT priority to the irq worker
won't work.  Use kthread_worker which guarantees specific kthread
association instead.  This also makes setting the priority cleaner.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Andy Walls <awalls@md.metrocast.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: ivtv-devel@ivtvdriver.org
Cc: linux-media@vger.kernel.org
      7bc46560
    • T
      kthread: implement kthread_worker · b56c0d89
      由 Tejun Heo 提交于 
      Implement simple work processor for kthread.  This is to ease using
kthread.  Single thread workqueue used to be used for things like this
but workqueue won't guarantee fixed kthread association anymore to
enable worker sharing.

This can be used in cases where specific kthread association is
necessary, for example, when it should have RT priority or be assigned
to certain cgroup.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
      b56c0d89
  3. 14 6月, 2010 1 次提交
  5. 12 6月, 2010 27 次提交
  7. 11 6月, 2010 4 次提交