Memorial Day in uts

uts.txt

From bmc Sun May 26 23:33:47 2002
Subject: Memorial Day in uts
To: kernel@eng
Date: Sun, 26 May 2002 23:33:47 -0700 (PDT)
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All,

This Memorial Day, take a moment to remember the source code that has
served in our kernel since its inception.  To this end, wander by
http://minnie.tuhs.org/UnixTree/, and pause for a moment to commemorate
these brave functions from the 101st Tapeborne -- all of which have
served continuously since August, 1973:

        bflush()        falloc()       newproc()         sched()
         bread()        getblk()         nodev()        signal()
        brelse()          getf()       nulldev()          stty()
        bwrite()          gtty()         panic()         suser()
         clock()         issig()        printf()         swtch()
        closef()        mmread()          psig()       timeout()
          core()       mmwrite()       psignal()       ufalloc()

Their compatriot structure fields include:

         av_back         b_flags          p_flag          u_cdir
         av_forw          b_forw          p_ppid
          b_back           c_arg (*)      p_stat
         b_blkno          c_func (*)      p_wchan

(*) c_func and c_arg are notable for having survived a bonwick scorched-earth
rewrite of callouts circa 1997 -- unclear if this makes them eligible for
the Purple Heart, or if they should be considered acquited war criminals.

As for constants, B_DONE, B_ERROR, FREAD, FWRITE, and SSLEEP have all had the
same numerical value since they enlisted in 1973.  And a moment of silence
is certainly due to this line in proc.h -- a line which has not changed
so much as a character since 1973:

  /* stat codes */

And to the code ripped out in the line of duty, we say only:  "We Have Not
Forgotten."  (Of course, we usually follow that up with "Never Again.")

        - Bryan

----------------------------------------------------------------------------
Bryan Cantrill, Solaris Kernel Development.  bmc@eng.sun.com  (650) 786-3652