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Howlett" Rework for_each_mte_vma() to use a VMA iterator instead of an explicit linked-list. Signed-off-by: Liam R. Howlett Acked-by: Catalin Marinas Link: https://lore.kernel.org/r/20220218023650.672072-1-Liam.Howlett@oracle= .com Signed-off-by: Will Deacon --- arch/arm64/kernel/elfcore.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/arch/arm64/kernel/elfcore.c b/arch/arm64/kernel/elfcore.c index 98d67444a5b6..27ef7ad3ffd2 100644 --- a/arch/arm64/kernel/elfcore.c +++ b/arch/arm64/kernel/elfcore.c @@ -8,9 +8,9 @@ #include #include =20 -#define for_each_mte_vma(tsk, vma) \ +#define for_each_mte_vma(vmi, vma) \ if (system_supports_mte()) \ - for (vma =3D tsk->mm->mmap; vma; vma =3D vma->vm_next) \ + for_each_vma(vmi, vma) \ if (vma->vm_flags & VM_MTE) =20 static unsigned long mte_vma_tag_dump_size(struct vm_area_struct *vma) @@ -81,8 +81,9 @@ Elf_Half elf_core_extra_phdrs(void) { struct vm_area_struct *vma; int vma_count =3D 0; + VMA_ITERATOR(vmi, current->mm, 0); =20 - for_each_mte_vma(current, vma) + for_each_mte_vma(vmi, vma) vma_count++; =20 return vma_count; @@ -91,8 +92,9 @@ Elf_Half elf_core_extra_phdrs(void) int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset= ) { struct vm_area_struct *vma; + VMA_ITERATOR(vmi, current->mm, 0); =20 - for_each_mte_vma(current, vma) { + for_each_mte_vma(vmi, vma) { struct elf_phdr phdr; =20 phdr.p_type =3D PT_AARCH64_MEMTAG_MTE; @@ -116,8 +118,9 @@ size_t elf_core_extra_data_size(void) { struct vm_area_struct *vma; size_t data_size =3D 0; + VMA_ITERATOR(vmi, current->mm, 0); =20 - for_each_mte_vma(current, vma) + for_each_mte_vma(vmi, vma) data_size +=3D mte_vma_tag_dump_size(vma); =20 return data_size; @@ -126,8 +129,9 @@ size_t elf_core_extra_data_size(void) int elf_core_write_extra_data(struct coredump_params *cprm) { struct vm_area_struct *vma; + VMA_ITERATOR(vmi, current->mm, 0); =20 - for_each_mte_vma(current, vma) { + for_each_mte_vma(vmi, vma) { if (vma->vm_flags & VM_DONTDUMP) continue; =20 --=20 2.35.1