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Date:      Wed, 22 Mar 1995 02:40:44 -0800
From:      David Greenman <davidg@Root.COM>
To:        Bruce Evans <bde@zeta.org.au>
Cc:        freebsd-bugs@freefall.cdrom.com
Subject:   Re: Changed information for PR kern/260 
Message-ID:  <199503221040.CAA00641@corbin.Root.COM>
In-Reply-To: Your message of "Wed, 22 Mar 95 20:28:33 %2B1000." <199503221028.UAA10199@godzilla.zeta.org.au> 

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>>pager is not be sufficient to update the time. I just spoke with Kirk on the
>>phone about this...after a half hour of talking about how the VFS layer could
>>be changed to better implement our vnode paging, the conclusion about how to
>>solve this problem in the short term was to use VOP_SETATTR() at unmap time
>>(if the file had been written to) to update the modification time.
>
>If you call it a lot it is more important for it to be fast.  I've changed
>ufs_setattr() to not immediately write the times to disk.  It doesn't
>immediately write changed uids or gids, and I think these are more
>important that the times.

   Kirk thinks utimes() is required by POSIX to be synchronous.

-DG



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