1. 06 3月, 2009 4 次提交
    • T
      percpu: use negative for auto for pcpu_setup_first_chunk() arguments · cafe8816
      Tejun Heo 提交于
      Impact: argument semantic cleanup
      
      In pcpu_setup_first_chunk(), zero @unit_size and @dyn_size meant
      auto-sizing.  It's okay for @unit_size as 0 doesn't make sense but 0
      dynamic reserve size is valid.  Alos, if arch @dyn_size is calculated
      from other parameters, it might end up passing in 0 @dyn_size and
      malfunction when the size is automatically adjusted.
      
      This patch makes both @unit_size and @dyn_size ssize_t and use -1 for
      auto sizing.
      Signed-off-by: NTejun Heo <tj@kernel.org>
      cafe8816
    • T
      percpu: improve first chunk initial area map handling · 61ace7fa
      Tejun Heo 提交于
      Impact: no functional change
      
      When the first chunk is created, its initial area map is not allocated
      because kmalloc isn't online yet.  The map is allocated and
      initialized on the first allocation request on the chunk.  This works
      fine but the scattering of initialization logic between the init
      function and allocation path is a bit confusing.
      
      This patch makes the first chunk initialize and use minimal statically
      allocated map from pcpu_setpu_first_chunk().  The map resizing path
      still needs to handle this specially but it's more straight-forward
      and gives more latitude to the init path.  This will ease future
      changes.
      Signed-off-by: NTejun Heo <tj@kernel.org>
      61ace7fa
    • T
      percpu: cosmetic renames in pcpu_setup_first_chunk() · 2441d15c
      Tejun Heo 提交于
      Impact: cosmetic, preparation for future changes
      
      Make the following renames in pcpur_setup_first_chunk() in preparation
      for future changes.
      
      * s/free_size/dyn_size/
      * s/static_vm/first_vm/
      * s/static_chunk/schunk/
      Signed-off-by: NTejun Heo <tj@kernel.org>
      2441d15c
    • T
      percpu: clean up percpu constants · 6a242909
      Tejun Heo 提交于
      Impact: cleaup
      
      Make the following cleanups.
      
      * There isn't much arch-specific about PERCPU_MODULE_RESERVE.  Always
        define it whether arch overrides PERCPU_ENOUGH_ROOM or not.
      
      * blackfin overrides PERCPU_ENOUGH_ROOM to align static area size.  Do
        it by default.
      
      * percpu allocation sizes doesn't have much to do with the page size.
        Don't use PAGE_SHIFT in their definition.
      Signed-off-by: NTejun Heo <tj@kernel.org>
      Cc: Bryan Wu <cooloney@kernel.org>
      6a242909
  2. 04 3月, 2009 4 次提交
  3. 03 3月, 2009 30 次提交
  4. 02 3月, 2009 2 次提交