On Thu, Jan 30, 2025 at 04:18:04PM -0800, Vishal Moola (Oracle) wrote: > Currently, users have to call vmap() or vmap_pfn() to map pages to > kernel virtual space. vmap() requires the page references, and > vmap_pfn() requires page pfns. If we have a file but no page references, > we have to do extra work to map them. > > Create a function, vmap_file(), to map a specified range of a given > file to kernel virtual space. Also convert a user that benefits from > vmap_file(). As far as I can tell there is exatly one user that maps file pages into vmalloc space. It's a pretty odd thing to do, so figuring out a way to get rid of that might be a better use of time.
