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| author | Lorenzo Stoakes <[email protected]> | 2025-06-18 19:42:53 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2025-07-10 05:42:13 +0000 |
| commit | bfbe71109fa40e8cc05a0f99e6734b7d76ee00b0 (patch) | |
| tree | 9a02712343f1715fc3706784632bead7296057d3 /mm/madvise.c | |
| parent | mm: change vm_get_page_prot() to accept vm_flags_t argument (diff) | |
| download | kernel-bfbe71109fa40e8cc05a0f99e6734b7d76ee00b0.tar.gz kernel-bfbe71109fa40e8cc05a0f99e6734b7d76ee00b0.zip | |
mm: update core kernel code to use vm_flags_t consistently
The core kernel code is currently very inconsistent in its use of
vm_flags_t vs. unsigned long. This prevents us from changing the type of
vm_flags_t in the future and is simply not correct, so correct this.
While this results in rather a lot of churn, it is a critical
pre-requisite for a future planned change to VMA flag type.
Additionally, update VMA userland tests to account for the changes.
To make review easier and to break things into smaller parts, driver and
architecture-specific changes is left for a subsequent commit.
The code has been adjusted to cascade the changes across all calling code
as far as is needed.
We will adjust architecture-specific and driver code in a subsequent patch.
Overall, this patch does not introduce any functional change.
Link: https://lkml.kernel.org/r/d1588e7bb96d1ea3fe7b9df2c699d5b4592d901d.1750274467.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <[email protected]>
Acked-by: Kees Cook <[email protected]>
Acked-by: Mike Rapoport (Microsoft) <[email protected]>
Acked-by: Jan Kara <[email protected]>
Acked-by: Christian Brauner <[email protected]>
Reviewed-by: Vlastimil Babka <[email protected]>
Acked-by: Oscar Salvador <[email protected]>
Reviewed-by: Pedro Falcato <[email protected]>
Acked-by: Zi Yan <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Reviewed-by: Anshuman Khandual <[email protected]>
Cc: Jann Horn <[email protected]>
Cc: Liam R. Howlett <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Jarkko Sakkinen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'mm/madvise.c')
| -rw-r--r-- | mm/madvise.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index d451438af999..92f427b1b330 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -130,7 +130,7 @@ static int replace_anon_vma_name(struct vm_area_struct *vma, */ static int madvise_update_vma(struct vm_area_struct *vma, struct vm_area_struct **prev, unsigned long start, - unsigned long end, unsigned long new_flags, + unsigned long end, vm_flags_t new_flags, struct anon_vma_name *anon_name) { struct mm_struct *mm = vma->vm_mm; @@ -1258,7 +1258,7 @@ static int madvise_vma_behavior(struct vm_area_struct *vma, int behavior = arg->behavior; int error; struct anon_vma_name *anon_name; - unsigned long new_flags = vma->vm_flags; + vm_flags_t new_flags = vma->vm_flags; if (unlikely(!can_modify_vma_madv(vma, behavior))) return -EPERM; |