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Diffstat (limited to 'mm')
-rw-r--r--mm/hugetlb.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 4553241f0fb2..05371bf54f96 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -6261,6 +6261,12 @@ static vm_fault_t hugetlb_no_page(struct mm_struct *mm,
VM_UFFD_MISSING);
}
+ if (!(vma->vm_flags & VM_MAYSHARE)) {
+ ret = vmf_anon_prepare(vmf);
+ if (unlikely(ret))
+ goto out;
+ }
+
folio = alloc_hugetlb_folio(vma, haddr, 0);
if (IS_ERR(folio)) {
/*
@@ -6297,15 +6303,12 @@ static vm_fault_t hugetlb_no_page(struct mm_struct *mm,
*/
restore_reserve_on_error(h, vma, haddr, folio);
folio_put(folio);
+ ret = VM_FAULT_SIGBUS;
goto out;
}
new_pagecache_folio = true;
} else {
folio_lock(folio);
-
- ret = vmf_anon_prepare(vmf);
- if (unlikely(ret))
- goto backout_unlocked;
anon_rmap = 1;
}
} else {