The quilt patch titled
Subject: madvise: use split_vma() instead of __split_vma()
has been removed from the -mm tree. Its filename was
madvise-use-split_vma-instead-of-__split_vma.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
Subject: madvise: use split_vma() instead of __split_vma()
Date: Fri, 20 Jan 2023 11:26:34 -0500
The split_vma() wrapper is specifically for this use case, so use it.
[Liam.Howlett@xxxxxxxxxx: fix VMA_ITERATOR start position]
Link: https://lkml.kernel.org/r/20230125135809.85262-1-Liam.Howlett@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20230120162650.984577-34-Liam.Howlett@xxxxxxxxxx
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/madvise.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
--- a/mm/madvise.c~madvise-use-split_vma-instead-of-__split_vma
+++ a/mm/madvise.c
@@ -142,7 +142,7 @@ static int madvise_update_vma(struct vm_
struct mm_struct *mm = vma->vm_mm;
int error;
pgoff_t pgoff;
- VMA_ITERATOR(vmi, mm, 0);
+ VMA_ITERATOR(vmi, mm, start);
if (new_flags == vma->vm_flags && anon_vma_name_eq(anon_vma_name(vma), anon_name)) {
*prev = vma;
@@ -161,17 +161,13 @@ static int madvise_update_vma(struct vm_
*prev = vma;
if (start != vma->vm_start) {
- if (unlikely(mm->map_count >= sysctl_max_map_count))
- return -ENOMEM;
- error = __split_vma(&vmi, vma, start, 1);
+ error = split_vma(&vmi, vma, start, 1);
if (error)
return error;
}
if (end != vma->vm_end) {
- if (unlikely(mm->map_count >= sysctl_max_map_count))
- return -ENOMEM;
- error = __split_vma(&vmi, vma, end, 0);
+ error = split_vma(&vmi, vma, end, 0);
if (error)
return error;
}
_
Patches currently in -mm which might be from Liam.Howlett@xxxxxxxxxx are
