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dmarc=pass (policy=none) header.from=oracle.com; spf=none (imf02.hostedemail.com: domain of liam.howlett@oracle.com has no SPF policy when checking 205.220.165.32) smtp.mailfrom=liam.howlett@oracle.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") X-Rspamd-Queue-Id: C10A280045 Authentication-Results: imf02.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2022-7-12 header.b="gQdhVsA/"; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=vN9e3V4P; dmarc=pass (policy=none) header.from=oracle.com; spf=none (imf02.hostedemail.com: domain of liam.howlett@oracle.com has no SPF policy when checking 205.220.165.32) smtp.mailfrom=liam.howlett@oracle.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") X-Rspamd-Server: rspam12 X-Rspam-User: X-Stat-Signature: jjsubp16t8fges67k34jp85jq6ghoeib X-HE-Tag: 1658283516-659946 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: "Matthew Wilcox (Oracle)" Use the VMA iterator instead. Link: https://lkml.kernel.org/r/20220504011345.662299-19-Liam.Howlett@oracl= e.com Link: https://lkml.kernel.org/r/20220621204632.3370049-35-Liam.Howlett@orac= le.com Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Liam R. Howlett Acked-by: Vlastimil Babka Cc: Catalin Marinas Cc: David Howells Cc: SeongJae Park Cc: Will Deacon Cc: Davidlohr Bueso Signed-off-by: Andrew Morton --- arch/s390/kernel/vdso.c | 3 ++- arch/s390/mm/gmap.c | 6 ++++-- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index 5075cde77b29..535099f2736d 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -69,10 +69,11 @@ static struct page *find_timens_vvar_page(struct vm_are= a_struct *vma) int vdso_join_timens(struct task_struct *task, struct time_namespace *ns) { struct mm_struct *mm =3D task->mm; + VMA_ITERATOR(vmi, mm, 0); struct vm_area_struct *vma; =20 mmap_read_lock(mm); - for (vma =3D mm->mmap; vma; vma =3D vma->vm_next) { + for_each_vma(vmi, vma) { unsigned long size =3D vma->vm_end - vma->vm_start; =20 if (!vma_is_special_mapping(vma, &vvar_mapping)) diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index b8ae4a4aa2ba..6e24f337eac0 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -2515,8 +2515,9 @@ static const struct mm_walk_ops thp_split_walk_ops = =3D { static inline void thp_split_mm(struct mm_struct *mm) { struct vm_area_struct *vma; + VMA_ITERATOR(vmi, mm, 0); =20 - for (vma =3D mm->mmap; vma !=3D NULL; vma =3D vma->vm_next) { + for_each_vma(vmi, vma) { vma->vm_flags &=3D ~VM_HUGEPAGE; vma->vm_flags |=3D VM_NOHUGEPAGE; walk_page_vma(vma, &thp_split_walk_ops, NULL); @@ -2584,8 +2585,9 @@ int gmap_mark_unmergeable(void) struct mm_struct *mm =3D current->mm; struct vm_area_struct *vma; int ret; + VMA_ITERATOR(vmi, mm, 0); =20 - for (vma =3D mm->mmap; vma; vma =3D vma->vm_next) { + for_each_vma(vmi, vma) { ret =3D ksm_madvise(vma, vma->vm_start, vma->vm_end, MADV_UNMERGEABLE, &vma->vm_flags); if (ret) --=20 2.35.1