On Tue, May 28, 2019 at 01:31:13AM -0700, Daniel Colascione wrote: > On Tue, May 28, 2019 at 1:14 AM Minchan Kim <minchan@xxxxxxxxxx> wrote: > > if we went with the per vma fd approach then you would get this > > > feature automatically because map_files would refer to file backed > > > mappings while map_anon could refer only to anonymous mappings. > > > > The reason to add such filter option is to avoid the parsing overhead > > so map_anon wouldn't be helpful. > > Without chiming on whether the filter option is a good idea, I'd like > to suggest that providing an efficient binary interfaces for pulling > memory map information out of processes. Some single-system-call > method for retrieving a binary snapshot of a process's address space > complete with attributes (selectable, like statx?) for each VMA would > reduce complexity and increase performance in a variety of areas, > e.g., Android memory map debugging commands. I agree it's the best we can get *generally*. Michal, any opinion?
