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authorTejun Heo <tj@kernel.org>2009-03-06 14:33:59 +0900
committerTejun Heo <tj@kernel.org>2009-03-06 14:33:59 +0900
commitcafe8816b217b98dc3f268d3b77445da498beb4f (patch)
tree7ebbb4e9fc2c4f6ec0035170d4736aecc00d2501 /arch/x86/kernel/setup_percpu.c
parent61ace7fa2fff9c4b6641c506b6b3f1a9394a1b11 (diff)
downloadop-kernel-dev-cafe8816b217b98dc3f268d3b77445da498beb4f.zip
op-kernel-dev-cafe8816b217b98dc3f268d3b77445da498beb4f.tar.gz
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 'arch/x86/kernel/setup_percpu.c')
-rw-r--r--arch/x86/kernel/setup_percpu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index c29f301..ef3a2cd3f 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -344,7 +344,7 @@ static ssize_t __init setup_pcpu_4k(size_t static_size)
pr_info("PERCPU: Allocated %d 4k pages, static data %zu bytes\n",
pcpu4k_nr_static_pages, static_size);
- ret = pcpu_setup_first_chunk(pcpu4k_get_page, static_size, 0, 0, NULL,
+ ret = pcpu_setup_first_chunk(pcpu4k_get_page, static_size, -1, -1, NULL,
pcpu4k_populate_pte);
goto out_free_ar;
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