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mm/vma: move VM_NO_KHUGEPAGED into generic header
Patch series "mm/vma: some more minor changes", v2. The motivation here is to consolidate VMA flags and helpers in generic memory header and reduce code duplication when ever applicable. If there are other possible similar instances which might be missing here, please do let me me know. I will be happy to incorporate them. This patch (of 3): Move VM_NO_KHUGEPAGED into generic header (include/linux/mm.h). This just makes sure that no VMA flag is scattered in individual function files any longer. While at this, fix an old comment which is no longer valid. This should not cause any functional change. Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Ingo Molnar <mingo@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1582782965-3274-2-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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2 changed files with 3 additions and 3 deletions
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@ -356,10 +356,12 @@ extern unsigned int kobjsize(const void *objp);
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/*
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* Special vmas that are non-mergable, non-mlock()able.
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* Note: mm/huge_memory.c VM_NO_THP depends on this definition.
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*/
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#define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_PFNMAP | VM_MIXEDMAP)
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/* This mask prevents VMA from being scanned with khugepaged */
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#define VM_NO_KHUGEPAGED (VM_SPECIAL | VM_HUGETLB)
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/* This mask defines which mm->def_flags a process can inherit its parent */
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#define VM_INIT_DEF_MASK VM_NOHUGEPAGE
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@ -308,8 +308,6 @@ struct attribute_group khugepaged_attr_group = {
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};
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#endif /* CONFIG_SYSFS */
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#define VM_NO_KHUGEPAGED (VM_SPECIAL | VM_HUGETLB)
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int hugepage_madvise(struct vm_area_struct *vma,
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unsigned long *vm_flags, int advice)
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{
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