diff options
| author | Liam R. Howlett <Liam.Howlett@Oracle.com> | 2023-01-20 11:26:46 -0500 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-09 16:51:38 -0800 |
| commit | cf51e86dfbe39b7cae3a9de650d035af22dd5fb4 (patch) | |
| tree | 9d21cd52be3e64b5cada32f2001368af48c9039a /fs/exec.c | |
| parent | 7c9813e886bb52495ff5b97d4b0f1320d36d869b (diff) | |
mm/mmap: don't use __vma_adjust() in shift_arg_pages()
Introduce shrink_vma() which uses the vma_prepare() and vma_complete()
functions to reduce the vma coverage.
Convert shift_arg_pages() to use expand_vma() and the new shrink_vma()
function. Remove support from __vma_adjust() to reduce a vma size since
shift_arg_pages() is the only user that shrinks a VMA in this way.
Link: https://lkml.kernel.org/r/20230120162650.984577-46-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/exec.c b/fs/exec.c index d52fca2dd30b..c0df813d2b45 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(&vmi, vma, new_start, old_end, vma->vm_pgoff)) + if (vma_expand(&vmi, vma, new_start, old_end, vma->vm_pgoff, NULL)) return -ENOMEM; /* @@ -733,7 +733,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift) vma_prev(&vmi); /* Shrink the vma to just the new range */ - return vma_adjust(&vmi, vma, new_start, new_end, vma->vm_pgoff); + return vma_shrink(&vmi, vma, new_start, new_end, vma->vm_pgoff); } /* |