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percpu: use VMALLOC_TOTAL instead of VMALLOC_END - VMALLOC_START

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vmalloc already gives a useful macro to calculate the total vmalloc
size. Use it.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Laura Abbott 2014-01-02 13:53:21 -08:00 committed by Tejun Heo
parent 687b0ad275
commit 8a0921712e
1 changed files with 2 additions and 2 deletions
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4
mm/percpu.c
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@ -1686,10 +1686,10 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
max_distance += ai->unit_size;
/* warn if maximum distance is further than 75% of vmalloc space */
if (max_distance > (VMALLOC_END - VMALLOC_START) * 3 / 4) {
if (max_distance > VMALLOC_TOTAL * 3 / 4) {
pr_warning("PERCPU: max_distance=0x%zx too large for vmalloc "
"space 0x%lx\n", max_distance,
(unsigned long)(VMALLOC_END - VMALLOC_START));
VMALLOC_TOTAL);
#ifdef CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK
/* and fail if we have fallback */
rc = -EINVAL;