[PATCH] Linux: Implement per-thread user and group IDs

[Florian Weimer]

* Carlos O'Donell:

> This patch is OK for master if you cleanup the public comment you
> added in pthread.h to avoid the use of "flag" and instead only talk
> about scope.

Do you mean like this?

/* Change the property in *ATTR which indicates whether the thread has
   its own current directory, file system root, and umask attribute.
   SCOPE must be PTHREAD_PER_PROCESS_NP or PTHREAD_PER_THREAD_NP.  By
   default, new threads share these attributes with their creating
   thread (PTHREAD_PER_PROCESS_NP).  */

Thanks,
Florian