Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 20 Feb 2020 14:46:25 -0600
From: (Eric W. Biederman)
To: Linus Torvalds <>
Cc: Al Viro <>,  LKML <>,  Kernel Hardening <>,  Linux API <>,  Linux FS Devel <>,  Linux Security Module <>,  Akinobu Mita <>,  Alexey Dobriyan <>,  Andrew Morton <>,  Andy Lutomirski <>,  Daniel Micay <>,  Djalal Harouni <>,  "Dmitry V . Levin" <>,  Greg Kroah-Hartman <>,  Ingo Molnar <>,  "J . Bruce Fields" <>,  Jeff Layton <>,  Jonathan Corbet <>,  Kees Cook <>,  Oleg Nesterov <>,  Solar Designer <>
Subject: [PATCH 0/7] proc: Dentry flushing without proc_mnt

Just because it is less of a fundamental change and less testing I went
and looked at updating proc_flush_task to use a list as Al suggested.

If we can stand an sget/deactivate_super pair for every dentry we want
to invalidate I think I have something.

Comments from anyone will be appreciated I gave this some light testing
and the code is based on something similar already present in proc so
I think there is a high chance this code is correct but I could easily
be wrong.

Linus, does this approach look like something you can stand?


Eric W. Biederman (7):
      proc: Rename in proc_inode rename sysctl_inodes sibling_inodes
      proc: Generalize proc_sys_prune_dcache into proc_prune_siblings_dcache
      proc: Mov rcu_read_(lock|unlock) in proc_prune_siblings_dcache
      proc: Use d_invalidate in proc_prune_siblings_dcache
      proc: Clear the pieces of proc_inode that proc_evict_inode cares about
      proc: Use a list of inodes to flush from proc
      proc: Ensure we see the exit of each process tid exactly once

 fs/exec.c               |   5 +--
 fs/proc/base.c          | 111 ++++++++++++++++--------------------------------
 fs/proc/inode.c         |  60 +++++++++++++++++++++++---
 fs/proc/internal.h      |   4 +-
 fs/proc/proc_sysctl.c   |  45 +++-----------------
 include/linux/pid.h     |   2 +
 include/linux/proc_fs.h |   4 +-
 kernel/exit.c           |   4 +-
 kernel/pid.c            |  16 +++++++
 9 files changed, 124 insertions(+), 127 deletions(-)

Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.