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    Subject[PATCH v2 41/70] fs/coredump: Use maple tree iterators in place of linked list
    Date
    Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
    ---
    fs/coredump.c | 13 +++++++------
    1 file changed, 7 insertions(+), 6 deletions(-)

    diff --git a/fs/coredump.c b/fs/coredump.c
    index c6acfc694f658..a69f281a08afb 100644
    --- a/fs/coredump.c
    +++ b/fs/coredump.c
    @@ -1040,10 +1040,10 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
    return vma->vm_end - vma->vm_start;
    }

    -static struct vm_area_struct *first_vma(struct task_struct *tsk,
    +static struct vm_area_struct *first_vma(struct mm_struct *mm,
    struct vm_area_struct *gate_vma)
    {
    - struct vm_area_struct *ret = tsk->mm->mmap;
    + struct vm_area_struct *ret = find_vma(mm, 0);

    if (ret)
    return ret;
    @@ -1054,12 +1054,13 @@ static struct vm_area_struct *first_vma(struct task_struct *tsk,
    * Helper function for iterating across a vma list. It ensures that the caller
    * will visit `gate_vma' prior to terminating the search.
    */
    -static struct vm_area_struct *next_vma(struct vm_area_struct *this_vma,
    +static struct vm_area_struct *next_vma(struct mm_struct *mm,
    + struct vm_area_struct *this_vma,
    struct vm_area_struct *gate_vma)
    {
    struct vm_area_struct *ret;

    - ret = this_vma->vm_next;
    + ret = vma_next(mm, this_vma);
    if (ret)
    return ret;
    if (this_vma == gate_vma)
    @@ -1097,8 +1098,8 @@ int dump_vma_snapshot(struct coredump_params *cprm, int *vma_count,
    return -ENOMEM;
    }

    - for (i = 0, vma = first_vma(current, gate_vma); vma != NULL;
    - vma = next_vma(vma, gate_vma), i++) {
    + for (i = 0, vma = first_vma(mm, gate_vma); vma != NULL;
    + vma = next_vma(mm, vma, gate_vma), i++) {
    struct core_vma_metadata *m = (*vma_meta) + i;

    m->start = vma->vm_start;
    --
    2.28.0
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