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mm: hugetlb_vmemmap: simplify hugetlb_vmemmap_init() a bit
The check of IS_ENABLED(CONFIG_PROC_SYSCTL) is unnecessary since register_sysctl_init() will be empty in this case. So, there is no warnings after removing the check. Link: https://lkml.kernel.org/r/20230223065947.64134-1-songmuchun@bytedance.com Signed-off-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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1 changed files with 6 additions and 8 deletions
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@ -590,17 +590,15 @@ static struct ctl_table hugetlb_vmemmap_sysctls[] = {
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static int __init hugetlb_vmemmap_init(void)
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{
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const struct hstate *h;
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/* HUGETLB_VMEMMAP_RESERVE_SIZE should cover all used struct pages */
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BUILD_BUG_ON(__NR_USED_SUBPAGE * sizeof(struct page) > HUGETLB_VMEMMAP_RESERVE_SIZE);
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if (IS_ENABLED(CONFIG_PROC_SYSCTL)) {
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const struct hstate *h;
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for_each_hstate(h) {
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if (hugetlb_vmemmap_optimizable(h)) {
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register_sysctl_init("vm", hugetlb_vmemmap_sysctls);
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break;
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}
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for_each_hstate(h) {
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if (hugetlb_vmemmap_optimizable(h)) {
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register_sysctl_init("vm", hugetlb_vmemmap_sysctls);
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break;
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}
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}
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return 0;
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