mm, hugetlb: remove hugetlb_zero and hugetlb_infinity
They are unnecessary: "zero" can be used in place of "hugetlb_zero" and passing extra2 == NULL is equivalent to infinity. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -87,7 +87,6 @@ pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud);
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#endif
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extern unsigned long hugepages_treat_as_movable;
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extern const unsigned long hugetlb_zero, hugetlb_infinity;
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extern int sysctl_hugetlb_shm_group;
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extern struct list_head huge_boot_pages;
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@ -1240,8 +1240,7 @@ static struct ctl_table vm_table[] = {
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.maxlen = sizeof(unsigned long),
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.mode = 0644,
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.proc_handler = hugetlb_sysctl_handler,
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.extra1 = (void *)&hugetlb_zero,
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.extra2 = (void *)&hugetlb_infinity,
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.extra1 = &zero,
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},
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#ifdef CONFIG_NUMA
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{
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@ -1250,8 +1249,7 @@ static struct ctl_table vm_table[] = {
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.maxlen = sizeof(unsigned long),
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.mode = 0644,
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.proc_handler = &hugetlb_mempolicy_sysctl_handler,
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.extra1 = (void *)&hugetlb_zero,
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.extra2 = (void *)&hugetlb_infinity,
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.extra1 = &zero,
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},
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#endif
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{
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@ -1274,8 +1272,7 @@ static struct ctl_table vm_table[] = {
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.maxlen = sizeof(unsigned long),
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.mode = 0644,
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.proc_handler = hugetlb_overcommit_handler,
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.extra1 = (void *)&hugetlb_zero,
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.extra2 = (void *)&hugetlb_infinity,
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.extra1 = &zero,
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},
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#endif
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{
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@ -35,7 +35,6 @@
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#include <linux/node.h>
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#include "internal.h"
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const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL;
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unsigned long hugepages_treat_as_movable;
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int hugetlb_max_hstate __read_mostly;
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