Bert Wesarg <bert.wesarg@xxxxxxxxxxxxxx> writes: > On Fri, Aug 1, 2014 at 2:30 AM, Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote: >> >> This patchset implements /proc/thread-self a magic symlink that >> solves a couple of problems. > > shouldn't we keep the 'task' in the name, as it points into the 'task' > directory? And why not mimic the current 'self -> <id>' ideom under > /proc/<tgid>/task too and put a new 'self' link there: > > $ ls -l /proc/self/task/self > lrwxrwxrwx 1 root root 0 Aug 1 00:00 /proc/self/task/self -> 484 No particularly good reason. Mostly I picked thread-self as I could pick that out as a concept in the code distinct from self and distinct from thread and it the implementation was stratighforward. Your approach requires a bit more symlink recursion than mine so it is not my first choice. I almost pointed it at just the sometimes invisible thread directory directly under /proc so it would be a single number. But that has the issue that it you still get the process rollups in the numbers reported by some of the proc files, which is undesirable. Frankly I think it was a mistake by the nptl kernel code to have changed the implementation of self. But changing /proc/self to return the tid at this point is more likely than not to beak applications so that I have avoided. Eric -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
