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Merge branch 'master' into patch-io-mapping

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fslongjin 2022-08-19 21:54:49 +08:00
commit 05477932de
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kernel/mm/vma.c
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@ -123,7 +123,7 @@ int vma_insert(struct mm_struct *mm, struct vm_area_struct *vma)
struct vm_area_struct *prev; struct vm_area_struct *prev;
prev = vma_find(mm, vma->vm_start); prev = vma_find(mm, vma->vm_start);
if (prev && prev->vm_start == vma->vm_start && prev->vm_end == vma->vm_end) if (prev && prev->vm_start <= vma->vm_start && prev->vm_end >= vma->vm_end)
{ {
// 已经存在了相同的vma // 已经存在了相同的vma
return -EEXIST; return -EEXIST;