mm/mmap.c: extract __vma_unlink_list() as counterpart for __vma_link_list()
Just make the code a little easier to read. Link: http://lkml.kernel.org/r/20191006012636.31521-3-richardw.yang@linux.intel.com Signed-off-by: Wei Yang <richardw.yang@linux.intel.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Oscar Salvador <osalvador@suse.de> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@@ -684,13 +684,7 @@ static void delete_vma_from_mm(struct vm_area_struct *vma)
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/* remove from the MM's tree and list */
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rb_erase(&vma->vm_rb, &mm->mm_rb);
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if (vma->vm_prev)
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vma->vm_prev->vm_next = vma->vm_next;
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else
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mm->mmap = vma->vm_next;
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if (vma->vm_next)
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vma->vm_next->vm_prev = vma->vm_prev;
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__vma_unlink_list(mm, vma);
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}
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/*
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