[OpenAFS] OpenAFS on Linux 2.5.x

[chas williams]

In message <Pine.LNX.4.53.0304160900430.26304@scully.trafford.dementia.org>,Der
rick J Brashear writes:
>i know we talked about it here before. making all of the entry points for
>daemons being kernel threads means we could reduce startup entry to an
>ioctl done on a file in /proc, or somesuch. then the afsdb handler also

i was actually thinking about something that might be easier like making
pioctl() an ioctl() on /afs.  i believe you could intercept this easily
enough at the filesystem.  i dont remember how everything works but
for pioctl() operations on file it would make sense.  for other operations
like setpag you might need to open /afs as a dummy fd.

>tampering with task_struct in addition to being ugly seems not likely to
>win us any friends, but more importantly, perhaps (or perhaps not) it
>seems not useful: there appear to be no fields not used that we can
>piggyback on.

well it would allow you to keep the same scheme, tacking it onto the end
of the groups field.  ask to get a field added to task struct to hold
our stuff.