Re: [REVIEW][PATCH 0/4] /proc/thread-self

On Thu, Jul 31, 2014 at 07:39:55PM -0700, Davidlohr Bueso wrote:

On Thu, 2014-07-31 at 17:30 -0700, Eric W. Biederman wrote:

quoted

This is small chance changing /proc/net and /proc/mounts will cause
userspace regressions (although nothing has shown up in my testing) if
that happens we can just point the change that moves them from
/proc/self/... to /proc/thread-self/...

Isn't breaking userspace a no no, no matter what? At least some
util-linux programs makes use of both /proc/mounts and /proc/net.

Frankly, I don't care about /proc/mount, this file is more about backward
compatibility than about any real informations ;-)

The really important file is /proc/self/mountinfo. We use this file on
many places including shared libs and it seems (according to Eric's
suggestion), that the right think will be to update the libs to use
/proc/thread-self/mountinfo.


Note that I like the idea to have the magic symlink to access thread
specific /proc stuff. It's definitely nice thing for userspace.

    Karel

-- 
 Karel Zak  [off-list ref]
 http://karelzak.blogspot.com