diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2025-04-17 12:23:49 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-04-17 12:26:50 -0700 |
| commit | 240ce924d2718b8f6f622f2a9a9c219b9da736e8 (patch) | |
| tree | a417bc3d31264e2c317614b25c4a7a6f688916b5 /include/linux/pgtable.h | |
| parent | 22ab6b9467c1822291a1175a0eb825b7ec057ef9 (diff) | |
| parent | b5c6891b2c5b54bf58069966296917da46cda6f2 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.15-rc3).
No conflicts. Adjacent changes:
tools/net/ynl/pyynl/ynl_gen_c.py
4d07bbf2d456 ("tools: ynl-gen: don't declare loop iterator in place")
7e8ba0c7de2b ("tools: ynl: don't use genlmsghdr in classic netlink")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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) |