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

From: Eric W. Biederman
Date: Fri Aug 01 2014 - 03:05:10 EST


Randy Dunlap <rdunlap@xxxxxxxxxxxxx> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/