On Thu, Feb 5, 2015 at 9:07 AM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > On Tue, Feb 03, 2015 at 04:59:44PM -0500, Trond Myklebust wrote: >> If we already hold a delegation, there should be no reason for the >> server to issue it to us again. Unfortunately, there appear to be >> servers out there that engage in this practice. While it is often >> harmless to do so, there is one case where this creates a problem >> and that is when the client is in the process of returning that >> delegation. >> This patch uses the NFSv4.1 NFS4_SHARE_WANT_NO_DELEG flag to inform >> the server not to return a delegation in these cases. > > Shouldn't this be patch 1 as it's the actual bug fix that might need > backporting? I'm dropping it instead. It doesn't completely close the race left open by the lack of clarity in the protocol, and so it is counterproductive; it will leave sloppy server vendors thinking the problem is solved when it isn't. -- Trond Myklebust Linux NFS client maintainer, PrimaryData trond.myklebust@xxxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
