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Date: Wed, 1 Oct 2003 10:58:08 +0200
From: Mikael Pettersson <mikpe@csd.uu.se>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Kernel Mailing List <linux-kernel@vger.kernel.org>,
       perfctr-devel@lists.sourceforge.net
Subject: Who changed /proc/<pid>/ in 2.6.0-test5-bk9?
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Linus' 2.6.0-test6 announcement doesn't seem to mention the
fact that 2.6.0-test5-bk9 fundamentally changed the semantics
of /proc/self and the /proc/<pid> name space. These used to
map to actual (kernel) tasks, now they map to what I assume
are Posixly-correct processes (groups of tasks). In particular,
/proc/self is no longer an alias for `current'.

I don't actually disagree with the change, but it took me by
surprise since neither the 2.6.0-test6 annoucement nor the
diff between the t5-bk8 and t5-bk9 logs seem to mention it.

(It broke the perfctr driver, but I'm handling that by making
an already planned API switch now instead of later.)

/Mikael