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| author | Tejun Heo <tj@kernel.org> | 2009-03-06 06:33:59 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-03-06 06:33:59 +0100 |
| commit | cafe8816b217b98dc3f268d3b77445da498beb4f (patch) | |
| tree | 7ebbb4e9fc2c4f6ec0035170d4736aecc00d2501 /include | |
| parent | percpu: improve first chunk initial area map handling (diff) | |
| download | linux-cafe8816b217b98dc3f268d3b77445da498beb4f.tar.xz linux-cafe8816b217b98dc3f268d3b77445da498beb4f.zip | |
percpu: use negative for auto for pcpu_setup_first_chunk() arguments
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: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/percpu.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index a0b4ea2a3354..a96fc53bbd62 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -117,8 +117,9 @@ typedef struct page * (*pcpu_get_page_fn_t)(unsigned int cpu, int pageno); typedef void (*pcpu_populate_pte_fn_t)(unsigned long addr); extern size_t __init pcpu_setup_first_chunk(pcpu_get_page_fn_t get_page_fn, - size_t static_size, size_t unit_size, - size_t dyn_size, void *base_addr, + size_t static_size, + ssize_t unit_size, ssize_t dyn_size, + void *base_addr, pcpu_populate_pte_fn_t populate_pte_fn); /* |