x86,percpu: generalize lpage first chunk allocator

Browse source

Generalize and move x86 setup_pcpu_lpage() into
pcpu_lpage_first_chunk().  setup_pcpu_lpage() now is a simple wrapper
around the generalized version.  Other than taking size parameters and
using arch supplied callbacks to allocate/free/map memory,
pcpu_lpage_first_chunk() is identical to the original implementation.

This simplifies arch code and will help converting more archs to
dynamic percpu allocator.

While at it, factor out pcpu_calc_fc_sizes() which is common to
pcpu_embed_first_chunk() and pcpu_lpage_first_chunk().

[ Impact: code reorganization and generalization ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Tejun Heo 2009-07-04 08:10:59 +09:00

parent 8f05a6a65d

commit 8c4bfc6e88

5 changed files with 244 additions and 171 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

9

arch/x86/include/asm/percpu.h

View file

169

arch/x86/kernel/setup_percpu.c

View file

1

arch/x86/mm/pageattr.c

View file

27

include/linux/percpu.h

View file

209

mm/percpu.c

View file