From: Russ Cox <rsc@swtch.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] 9vx (is this the right list)? import issue
Date: Wed, 23 Sep 2009 11:52:07 -0700 [thread overview]
Message-ID: <dd6fe68a0909231152g2b3df302u781e8f75560f2516@mail.gmail.com> (raw)
In-Reply-To: <f2f087cbaf9480d05dca870c68fcbf0f@brasstown.quanstro.net>
> how sure are we that 1 holds? couldn't there be other,
> legitimate and transient errors? could a user-delivered
> note sneak in and confuse the issue?
no. at least not if the kernel is working properly.
that's why i said devmnt should enforce the assumption.
it's at most a couple lines of extra code,
whereas the diff you posted was quite a bit longer.
this is a simplifying assumption in the code,
so called because it simplifies the code. if you
throw away the assumption, you throw away the
simplicity, and not just here. rather than throw
away the simplicity, work to understand why the
assumption is being violated (in 9vx it is the bogus
spelling of "interrupted") and fix the violation instead.
russ
next prev parent reply other threads:[~2009-09-23 18:52 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <<dd6fe68a0909222111y1af0f4a2qd30a3b4eded30b2b@mail.gmail.com>
2009-09-23 4:56 ` erik quanstrom
2009-09-23 18:52 ` Russ Cox [this message]
2009-09-23 19:12 ` ron minnich
2009-09-23 19:25 ` erik quanstrom
2009-09-23 19:26 ` Russ Cox
2009-09-23 20:33 ` ron minnich
2009-09-23 20:35 ` ron minnich
2009-09-23 22:13 ` Russ Cox
2009-09-23 21:25 ` erik quanstrom
[not found] <<dd6fe68a0909222011u4243953dged01d77ecdc93e46@mail.gmail.com>
2009-09-23 3:17 ` erik quanstrom
2009-09-23 4:11 ` Russ Cox
[not found] <<fadaba2046122acf656140c0618e1d1e@ladd.quanstro.net>
2009-09-23 2:41 ` erik quanstrom
2009-09-23 3:11 ` Russ Cox
[not found] <<13426df10909221532t5de9f010pfeb2ca2c3b44db89@mail.gmail.com>
2009-09-23 2:36 ` erik quanstrom
[not found] <<13426df10909221420x1298139fhdeb4f0803924e5a3@mail.gmail.com>
2009-09-22 21:23 ` erik quanstrom
2009-09-22 22:32 ` ron minnich
[not found] <<df49a7370909221158u3f071cc3j125c85241c5088e6@mail.gmail.com>
2009-09-22 19:01 ` erik quanstrom
2009-09-22 19:34 ` roger peppe
2009-09-22 21:12 ` ron minnich
2009-09-22 21:20 ` ron minnich
[not found] <<13426df10909221147w665e30adt93b6121281294647@mail.gmail.com>
2009-09-22 18:51 ` erik quanstrom
2009-09-21 18:29 ron minnich
2009-09-22 5:51 ` Russ Cox
2009-09-22 17:27 ` ron minnich
2009-09-22 18:21 ` ron minnich
2009-09-22 18:35 ` roger peppe
2009-09-22 18:47 ` ron minnich
2009-09-22 18:58 ` roger peppe
2009-09-22 19:08 ` Eric Van Hensbergen
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