Regarding BGworkers

While going through below commit, few doubts/observations:
http://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=7f7485a0cde92aa4ba235a1ffe4dda0ca0b6cc9a

1. Bgworker.c -
FindRegisteredWorkerBySlotNumber()
{
..
/*
* Copy contents of worker list into shared memory. Record the
* shared memory slot assigned to each worker. This ensures
* a 1-to-1 correspondence betwen the postmaster's private list and
* the array in shared memory.
*/
..
}
a. Comment in function doesn't seem to be appropriate. It seems copy-pasted from function
BackgroundWorkerShmemInit
b. all function's except this have function header to explain a bit about function, though
it might not be required here, but not sure so pointed.

2. Shouldn't function
do_start_bgworker()/StartOneBackgroundWorker(void) be moved to bgworker.c
as similar functions AutoVacWorkerMain()/PgArchiverMain() are in their respective files.

3. bgworker.h - file header still contains explanation only as per old functionality.
Not sure, if it needs to be updated for new functionality of dynamic workers.

With Regards,
Amit Kapila.