[PATCH 1/9] mm: Introduce new vm_insert_range API

[William Kucharski]

> On Nov 21, 2018, at 5:35 AM, Matthew Wilcox <willy at infradead.org> wrote:
> 
> It's probably better to be more explicit and answer Randy's question:
> 
> * If we fail to insert any page into the vma, the function will return
> * immediately leaving any previously-inserted pages present.  Callers
> * from the mmap handler may immediately return the error as their
> * caller will destroy the vma, removing any successfully-inserted pages.
> * Other callers should make their own arrangements for calling unmap_region().

That works for me as well.