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Re: kern/41051: do_sys_rename mp resource race
The following reply was made to PR kern/41051; it has been noted by GNATS.
From: Andrew Doran <ad%netbsd.org@localhost>
Subject: Re: kern/41051: do_sys_rename mp resource race
Date: Sun, 22 Mar 2009 20:02:42 +0000
On Sun, Mar 22, 2009 at 04:25:01AM +0000, Antti Kantee wrote:
> Could you explain what you want to do about the problem. I have a
> hard time interpreting the above in any other way except that you
> are disagreeing with the suggested fix because you think file system
> locking should be completely reworked so that this problem with rename
> can be fixed.
I don't think we'd need to go that far to fix this one, but there would be a
good chunk of work involved in it.
> I do agree that improvements in that area are necessary, but I think that
> is way out of scope here, especially considering the release branch.
For an immediate remedy a ref to the mount and a comment about it would do.
> (also, do_sys_rename handles only one mountpoint, the rest is up to the
> file system, but that's a minor detail)
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