14 Feb, 2013

1 commit

• 112202d90   workqueue: rename cpu_workqueue to pool_workqueue ... Browse Code »

  workqueue has moved away from global_cwqs to worker_pools and with the
  scheduled custom worker pools, wforkqueues will be associated with
  pools which don't have anything to do with CPUs. The workqueue code
  went through significant amount of changes recently and mass renaming
  isn't likely to hurt much additionally. Let's replace 'cpu' with
  'pool' so that it reflects the current design.

  * s/struct cpu_workqueue_struct/struct pool_workqueue/
  * s/cpu_wq/pool_wq/
  * s/cwq/pwq/

  This patch is purely cosmetic.

  Signed-off-by: Tejun Heo

  Tejun Heo

  2013-02-14 11:29:12 +0800  

25 Jan, 2013

1 commit

• a60dc39c0   workqueue: remove global_cwq ... Browse Code »

  global_cwq is now nothing but a container for per-cpu standard
  worker_pools. Declare the worker pools directly as
  cpu/unbound_std_worker_pools[] and remove global_cwq.

  * ____cacheline_aligned_in_smp moved from global_cwq to worker_pool.
  This probably would have made sense even before this change as we
  want each pool to be aligned.

  * get_gcwq() is replaced with std_worker_pools() which returns the
  pointer to the standard pool array for a given CPU.

  * __alloc_workqueue_key() updated to use get_std_worker_pool() instead
  of open-coding pool determination.

  This is part of an effort to remove global_cwq and make worker_pool
  the top level abstraction, which in turn will help implementing worker
  pools with user-specified attributes.

  v2: Joonsoo pointed out that it'd better to align struct worker_pool
  rather than the array so that every pool is aligned.

  Signed-off-by: Tejun Heo
  Reviewed-by: Lai Jiangshan
  Cc: Joonsoo Kim

  Tejun Heo

  2013-01-25 03:01:34 +0800  

19 Jan, 2013

3 commits

• 84b233adc   workqueue: implement current_is_async() ... Browse Code »

  This function queries whether %current is an async worker executing an
  async item. This will be used to implement warning on synchronous
  request_module() from async workers.

  Signed-off-by: Tejun Heo

  Tejun Heo

  2013-01-19 06:05:56 +0800  
• 2eaebdb33   workqueue: move struct worker definition to workqueue_internal.h ... Browse Code »

  This will be used to implement an inline function to query whether
  %current is a workqueue worker and, if so, allow determining which
  work item it's executing.

  Signed-off-by: Tejun Heo
  Cc: Linus Torvalds

  Tejun Heo

  2013-01-19 06:05:55 +0800  
• ea138446e   workqueue: rename kernel/workqueue_sched.h to kernel/workqueue_internal.h ... Browse Code »

  Workqueue wants to expose more interface internal to kernel/. Instead
  of adding a new header file, repurpose kernel/workqueue_sched.h.
  Rename it to workqueue_internal.h and add include protector.

  This patch doesn't introduce any functional changes.

  Signed-off-by: Tejun Heo
  Cc: Linus Torvalds
  Cc: Ingo Molnar
  Cc: Peter Zijlstra

  Tejun Heo

  2013-01-19 06:05:55 +0800