On Fri, Feb 12, 2021 at 10:31 AM Song Liu <songliubraving@xxxxxx> wrote: > > This set introduces bpf_iter for task_vma, which can be used to generate > information similar to /proc/pid/maps. Patch 4/4 adds an example that > mimics /proc/pid/maps. > > Current /proc/<pid>/maps and /proc/<pid>/smaps provide information of > vma's of a process. However, these information are not flexible enough to > cover all use cases. For example, if a vma cover mixed 2MB pages and 4kB > pages (x86_64), there is no easy way to tell which address ranges are > backed by 2MB pages. task_vma solves the problem by enabling the user to > generate customize information based on the vma (and vma->vm_mm, > vma->vm_file, etc.). > > Changes v6 => v7: > 1. Let BPF iter program use bpf_d_path without specifying sleepable. > (Alexei) Applied. Thanks!
