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

Eric W. Biederman ebiederm at xmission.com
Fri Aug 1 07:01:13 UTC 2014


Randy Dunlap <rdunlap at infradead.org> writes:

> On 07/31/14 17:30, Eric W. Biederman wrote:
>> 
>> This patchset implements /proc/thread-self a magic symlink that
>> solves a couple of problems.
>> 
>> - It makes it easy to get to a specific threads directory in /proc
>>   with gettid() not being exported in glibc this is currently a pain.
>> 
>> - It allows fixing the problem present in /proc/mounts and /proc/net
>>   that when the thread group leader exits but the entire thread group
>>   remains /proc/self/net and /proc/self/mounts and thus /proc/mounts and
>>   /proc/net become empty.
>> 
>> - As mount and network namespaces are per thread it allows /proc/net and
>>   /proc/mounts to reflect this.
>
> Hi Eric,
>
> Any changes/additions to Documentation/ ?

Not at this time.  I can imagine that there is proc manpage that might
need a line or two of Documentation.

I am not familiar with anything in Documentation that descripes any of
this and would benefit from an update.  From an overview perspective I
can see documenting this so people know thread-self exists.  From an
actual usage perspective:

  $ ls -l /proc/thread-self
  lrwxrwxrwx 1 root root 0 Aug  1 00:00 /proc/thread-self -> 484/task/484

seems like pretty comprehensive documentation to me.

Eric


More information about the Containers mailing list