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Re: TAKE - reintroduce the nfs inode reference cache

To: Steve Lord <lord@xxxxxxx>
Subject: Re: TAKE - reintroduce the nfs inode reference cache
From: Andi Kleen <ak@xxxxxxx>
Date: Tue, 6 Mar 2001 21:43:22 +0100
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <200103062024.f26KOhb04680@xxxxxxxxxxxxxxxxxxxx>; from lord@xxxxxxx on Tue, Mar 06, 2001 at 02:24:43PM -0600
References: <lord@xxxxxxx> <200103062024.f26KOhb04680@xxxxxxxxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
User-agent: Mutt/1.2.5i
On Tue, Mar 06, 2001 at 02:24:43PM -0600, Steve Lord wrote:
> 
> OK, I am probably talking rubbish with this code, if someone feels like trying
> it out please do and let me know if it helps. I thought I was seeing 
> improvements, but thinking about the code, and trying the tests again I
> am not seeing improvements.

If XFS is doing the truncate on linux inode count zeroing (in i_ops->release)
then it should only happen when the file is expunged from the dcache, which
can be never and should not happen after every NFS RPC unless the machine
is trashing heavily. 


-Andi

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