Re: [PATCH 2/2] NFSv42: Don't force attribute revalidation of the copy offload source

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On Wed, Apr 14, 2021 at 10:40:33AM -0400, bfields wrote:
> Thanks!  Testing....

... and, test results back with these two patches applied, looks good!

--b.

> 
> --b.
> 
> On Wed, Apr 14, 2021 at 10:31:38AM -0400, trondmy@xxxxxxxxxx wrote:
> > From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
> > 
> > When a copy offload is performed, we do not expect the source file to
> > change other than perhaps to see the atime be updated.
> > 
> > Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
> > ---
> >  fs/nfs/nfs42proc.c | 7 +------
> >  1 file changed, 1 insertion(+), 6 deletions(-)
> > 
> > diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
> > index 3875120ef3ef..a24349512ffe 100644
> > --- a/fs/nfs/nfs42proc.c
> > +++ b/fs/nfs/nfs42proc.c
> > @@ -390,12 +390,7 @@ static ssize_t _nfs42_proc_copy(struct file *src,
> >  	}
> >  
> >  	nfs42_copy_dest_done(dst_inode, pos_dst, res->write_res.count);
> > -
> > -	spin_lock(&src_inode->i_lock);
> > -	nfs_set_cache_invalid(src_inode, NFS_INO_REVAL_PAGECACHE |
> > -						 NFS_INO_REVAL_FORCED |
> > -						 NFS_INO_INVALID_ATIME);
> > -	spin_unlock(&src_inode->i_lock);
> > +	nfs_invalidate_atime(src_inode);
> >  	status = res->write_res.count;
> >  out:
> >  	if (args->sync)
> > -- 
> > 2.30.2



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