mm: rust: add vm_insert_page

The vm_insert_page method is only usable on vmas with the VM_MIXEDMAP
flag, so we introduce a new type to keep track of such vmas.

The approach used in this patch assumes that we will not need to encode
many flag combinations in the type.  I don't think we need to encode more
than VM_MIXEDMAP and VM_PFNMAP as things are now.  However, if that
becomes necessary, using generic parameters in a single type would scale
better as the number of flags increases.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Alice Ryhl <[email protected]>
Acked-by: Lorenzo Stoakes <[email protected]>
Acked-by: Liam R. Howlett <[email protected]>
Reviewed-by: Andreas Hindborg <[email protected]>
Reviewed-by: Gary Guo <[email protected]>
Cc: Alex Gaynor <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Balbir Singh <[email protected]>
Cc: Benno Lossin <[email protected]>
Cc: Björn Roy Baron <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Jann Horn <[email protected]>
Cc: John Hubbard <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Cc: Suren Baghdasaryan <[email protected]>
Cc: Trevor Gross <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions