diff options
| author | Liam R. Howlett | 2023-01-20 11:26:14 -0500 |
|---|---|---|
| committer | Andrew Morton | 2023-02-09 16:51:32 -0800 |
| commit | 3c441ab7d059ebfd2535a52c001c50eac5d63886 (patch) | |
| tree | 8426ea6f1b0c089dd6802f1477404306488c8aaf | |
| parent | 183654ce26a5d5bd7bc11bcb02e8086f02f66d7d (diff) | |
mmap: convert vma_expand() to use vma iterator
Use the vma iterator instead of the maple state for type safety and for
consistency through the mm code.
Link: https://lkml.kernel.org/r/20230120162650.984577-14-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/mmap.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 5b83023ba6a6..7e406416cf47 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -527,7 +527,7 @@ static int vma_link(struct mm_struct *mm, struct vm_area_struct *vma) * * Returns: 0 on success */ -inline int vma_expand(struct ma_state *mas, struct vm_area_struct *vma, +inline int vma_expand(struct vma_iterator *vmi, struct vm_area_struct *vma, unsigned long start, unsigned long end, pgoff_t pgoff, struct vm_area_struct *next) { @@ -556,7 +556,7 @@ inline int vma_expand(struct ma_state *mas, struct vm_area_struct *vma, /* Only handles expanding */ VM_BUG_ON(vma->vm_start < start || vma->vm_end > end); - if (mas_preallocate(mas, GFP_KERNEL)) + if (vma_iter_prealloc(vmi)) goto nomem; vma_adjust_trans_huge(vma, start, end, 0); @@ -581,8 +581,7 @@ inline int vma_expand(struct ma_state *mas, struct vm_area_struct *vma, vma->vm_start = start; vma->vm_end = end; vma->vm_pgoff = pgoff; - /* Note: mas must be pointing to the expanding VMA */ - vma_mas_store(vma, mas); + vma_iter_store(vmi, vma); if (file) { vma_interval_tree_insert(vma, root); @@ -2600,7 +2599,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr, /* Actually expand, if possible */ if (vma && - !vma_expand(&vmi.mas, vma, merge_start, merge_end, vm_pgoff, next)) { + !vma_expand(&vmi, vma, merge_start, merge_end, vm_pgoff, next)) { khugepaged_enter_vma(vma, vm_flags); goto expanded; } |