diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-05-05 13:25:15 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-05-05 13:25:15 +0800 |
| commit | fba4aafaba8a6ca2bb42e854c37ff9a685ddfd71 (patch) | |
| tree | 4ba74ac925fc7d7b131fa54239b43c00a42a3429 /include/linux/pgtable.h | |
| parent | 5b39aa368bcfe193666ad4a68ef55f41dfd74028 (diff) | |
| parent | 92a09c47464d040866cf2b4cd052bc60555185fb (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux v6.15-rc5
Merge mainline to pick up bcachefs poly1305 patch 4bf4b5046de0
("bcachefs: use library APIs for ChaCha20 and Poly1305"). This
is a prerequisite for removing the poly1305 shash algorithm.
Diffstat (limited to 'include/linux/pgtable.h')
| -rw-r--r-- | include/linux/pgtable.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index e2b705c14945..b50447ef1c92 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1511,8 +1511,9 @@ static inline void track_pfn_insert(struct vm_area_struct *vma, pgprot_t *prot, /* * track_pfn_copy is called when a VM_PFNMAP VMA is about to get the page - * tables copied during copy_page_range(). On success, stores the pfn to be - * passed to untrack_pfn_copy(). + * tables copied during copy_page_range(). Will store the pfn to be + * passed to untrack_pfn_copy() only if there is something to be untracked. + * Callers should initialize the pfn to 0. */ static inline int track_pfn_copy(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma, unsigned long *pfn) @@ -1522,7 +1523,9 @@ static inline int track_pfn_copy(struct vm_area_struct *dst_vma, /* * untrack_pfn_copy is called when a VM_PFNMAP VMA failed to copy during - * copy_page_range(), but after track_pfn_copy() was already called. + * copy_page_range(), but after track_pfn_copy() was already called. Can + * be called even if track_pfn_copy() did not actually track anything: + * handled internally. */ static inline void untrack_pfn_copy(struct vm_area_struct *dst_vma, unsigned long pfn) |