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charset="utf-8" From: "Liam R. Howlett" Change the vma_adjust() function definition to accept the vma iterator and pass it through to __vma_adjust(). Update fs/exec to use the new vma_adjust() function parameters. Revert the __split_vma() calls back from __vma_adjust() to vma_adjust() and pass through the vma iterator. Signed-off-by: Liam R. Howlett --- fs/exec.c | 11 ++++------- include/linux/mm.h | 9 ++++----- mm/mmap.c | 10 +++++----- 3 files changed, 13 insertions(+), 17 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index b98647eeae9f..76ee62e1d3f1 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -699,7 +699,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, = unsigned long shift) /* * cover the whole range: [new_start, old_end) */ - if (vma_adjust(vma, new_start, old_end, vma->vm_pgoff, NULL)) + if (vma_adjust(&vmi, vma, new_start, old_end, vma->vm_pgoff, NULL)) return -ENOMEM; =20 /* @@ -731,12 +731,9 @@ static int shift_arg_pages(struct vm_area_struct *vma,= unsigned long shift) } tlb_finish_mmu(&tlb); =20 - /* - * Shrink the vma to just the new range. Always succeeds. - */ - vma_adjust(vma, new_start, new_end, vma->vm_pgoff, NULL); - - return 0; + vma_prev(&vmi); + /* Shrink the vma to just the new range */ + return vma_adjust(&vmi, vma, new_start, new_end, vma->vm_pgoff, NULL); } =20 /* diff --git a/include/linux/mm.h b/include/linux/mm.h index 294894969cd9..aabfd4183091 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2825,12 +2825,11 @@ extern int __vm_enough_memory(struct mm_struct *mm,= long pages, int cap_sys_admi extern int __vma_adjust(struct vma_iterator *vmi, struct vm_area_struct *v= ma, unsigned long start, unsigned long end, pgoff_t pgoff, struct vm_area_struct *insert, struct vm_area_struct *expand); -static inline int vma_adjust(struct vm_area_struct *vma, unsigned long sta= rt, - unsigned long end, pgoff_t pgoff, struct vm_area_struct *insert) +static inline int vma_adjust(struct vma_iterator *vmi, + struct vm_area_struct *vma, unsigned long start, unsigned long end, + pgoff_t pgoff, struct vm_area_struct *insert) { - VMA_ITERATOR(vmi, vma->vm_mm, start); - - return __vma_adjust(&vmi, vma, start, end, pgoff, insert, NULL); + return __vma_adjust(vmi, vma, start, end, pgoff, insert, NULL); } extern struct vm_area_struct *vma_merge(struct vma_iterator *vmi, struct mm_struct *, struct vm_area_struct *prev, unsigned long addr, diff --git a/mm/mmap.c b/mm/mmap.c index a8908280671f..cc53f638187b 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2209,12 +2209,12 @@ int __split_vma(struct vma_iterator *vmi, struct vm= _area_struct *vma, new->vm_ops->open(new); =20 if (new_below) - err =3D __vma_adjust(vmi, vma, addr, vma->vm_end, - vma->vm_pgoff + ((addr - new->vm_start) >> PAGE_SHIFT), - new, NULL); + err =3D vma_adjust(vmi, vma, addr, vma->vm_end, + vma->vm_pgoff + ((addr - new->vm_start) >> PAGE_SHIFT), + new); else - err =3D __vma_adjust(vmi, vma, vma->vm_start, addr, vma->vm_pgoff, - new, NULL); + err =3D vma_adjust(vmi, vma, vma->vm_start, addr, vma->vm_pgoff, + new); =20 /* Success. */ if (!err) { --=20 2.35.1