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Howlett" Move the anon_vma setting & warn_no up the function. This is done to clear up the locking later. Signed-off-by: Liam R. Howlett --- mm/mmap.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/mm/mmap.c b/mm/mmap.c index c1796f9261e4..c15a04bf3518 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -744,6 +744,14 @@ int __vma_adjust(struct vma_iterator *vmi, struct vm_a= rea_struct *vma, if (vma_iter_prealloc(vmi, vma)) return -ENOMEM; =20 + anon_vma =3D vma->anon_vma; + if (!anon_vma && adjust_next) + anon_vma =3D next->anon_vma; + + if (anon_vma) + VM_WARN_ON(adjust_next && next->anon_vma && + anon_vma !=3D next->anon_vma); + vma_adjust_trans_huge(orig_vma, start, end, adjust_next); if (file) { mapping =3D file->f_mapping; @@ -765,12 +773,7 @@ int __vma_adjust(struct vma_iterator *vmi, struct vm_a= rea_struct *vma, } } =20 - anon_vma =3D vma->anon_vma; - if (!anon_vma && adjust_next) - anon_vma =3D next->anon_vma; if (anon_vma) { - VM_WARN_ON(adjust_next && next->anon_vma && - anon_vma !=3D next->anon_vma); anon_vma_lock_write(anon_vma); anon_vma_interval_tree_pre_update_vma(vma); if (adjust_next) --=20 2.35.1