[PATCH v3 19/48] coredump: Convert to vma iterator

Liam Howlett
2023-01-17T02:35:57Z

Use the vma iterator so that the iterator can be invalidated or updated
to avoid each caller doing so.

Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
---
fs/coredump.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/coredump.c b/fs/coredump.c
index de78bde2991b..f27d734f3102 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -1111,14 +1111,14 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
* 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 *coredump_next_vma(struct ma_state *mas,
+static struct vm_area_struct *coredump_next_vma(struct vma_iterator *vmi,
struct vm_area_struct *vma,
struct vm_area_struct *gate_vma)
{
if (gate_vma && (vma == gate_vma))
return NULL;

- vma = mas_next(mas, ULONG_MAX);
+ vma = vma_next(vmi);
if (vma)
return vma;
return gate_vma;
@@ -1146,7 +1146,7 @@ static bool dump_vma_snapshot(struct coredump_params *cprm)
{
struct vm_area_struct *gate_vma, *vma = NULL;
struct mm_struct *mm = current->mm;
- MA_STATE(mas, &mm->mm_mt, 0, 0);
+ VMA_ITERATOR(vmi, mm, 0);
int i = 0;

/*
@@ -1167,7 +1167,7 @@ static bool dump_vma_snapshot(struct coredump_params *cprm)
return false;
}

- while ((vma = coredump_next_vma(&mas, vma, gate_vma)) != NULL) {
+ while ((vma = coredump_next_vma(&vmi, vma, gate_vma)) != NULL) {
struct core_vma_metadata *m = cprm->vma_meta + i;

m->start = vma->vm_start;
--
2.35.1