Re: kern/41051: do_sys_rename mp resource race

[Andrew Doran <ad%netbsd.org@localhost>]

The following reply was made to PR kern/41051; it has been noted by GNATS.

From: Andrew Doran <ad%netbsd.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
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)
 
 Right.