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Re: PUFFS putpages/read race?

To: Thor Lancelot Simon <tls%panix.com@localhost>
Subject: Re: PUFFS putpages/read race?
From: Emmanuel Dreyfus <manu%netbsd.org@localhost>
Date: Fri, 20 Jul 2012 12:38:02 +0000

On Fri, Jul 20, 2012 at 07:39:22AM -0400, Thor Lancelot Simon wrote:
> If the filesystem receives a write, then a read, and reorders the read
> around the write, I think that's *always* a bug.

filesystems will assume a read cannot come before a write completed,
since they must operate on locked vnodes. IMO FAF write by PUFFS is
a call for disaster.

-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost

References:
- Re: PUFFS putpages/read race?
  - From: Thor Lancelot Simon
- Re: PUFFS putpages/read race?
  - From: Emmanuel Dreyfus
- Re: PUFFS putpages/read race?
  - From: Thor Lancelot Simon

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