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percpu: generalize embedding first chunk setup helper

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Impact: code reorganization

Separate out embedding first chunk setup helper from x86 embedding
first chunk allocator and put it in mm/percpu.c.  This will be used by
the default percpu first chunk allocator and possibly by other archs.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2009-03-10 16:27:48 +09:00
parent 6074d5b0a3
commit 66c3a75772
3 changed files with 96 additions and 48 deletions
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4
include/linux/percpu.h
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@ -111,6 +111,10 @@ extern size_t __init pcpu_setup_first_chunk(pcpu_get_page_fn_t get_page_fn,
void *base_addr,
pcpu_populate_pte_fn_t populate_pte_fn);
extern ssize_t __init pcpu_embed_first_chunk(
size_t static_size, size_t reserved_size,
ssize_t dyn_size, ssize_t unit_size);
/*
* Use this to get to a cpu's version of the per-cpu object
* dynamically allocated. Non-atomic access to the current CPU's