linux-kernel - Re: 9p EBADF with cache enabled (Was: 9p fs-cache tests/benchmark (was: 9p fscache Duplicate cookie detected))

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Message-ID: <1817268.LulUJvKFVv@silver>
Date:   Thu, 21 Apr 2022 13:36:14 +0200
From:   Christian Schoenebeck <linux_oss@...debyte.com>
To:     asmadeus@...ewreck.org, David Howells <dhowells@...hat.com>
Cc:     dhowells@...hat.com, David Kahurani <k.kahurani@...il.com>,
        davem@...emloft.net, ericvh@...il.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, lucho@...kov.net,
        netdev@...r.kernel.org, v9fs-developer@...ts.sourceforge.net,
        Greg Kurz <groug@...d.org>
Subject: Re: 9p EBADF with cache enabled (Was: 9p fs-cache tests/benchmark (was: 9p
 fscache Duplicate cookie detected))

On Donnerstag, 21. April 2022 12:36:12 CEST David Howells wrote:
> asmadeus@...ewreck.org wrote:
> > 	int fd = open(argv[1], O_WRONLY|O_APPEND);
> > 	if (fd < 0)
> > 	
> > 		return 1;
> > 	
> > 	if (write(fd, "test\n", 5) < 0)
> 
> I think I need to implement the ability to store writes in non-uptodate
> pages without needing to read from the server as NFS does.  This may fix
> the performance drop also.
> 
> David

I hope this does not sound harsh, wouldn't it make sense to revert 
eb497943fa215897f2f60fd28aa6fe52da27ca6c for now until those issues are sorted 
out? My concern is that it might take a long time to address them, and these 
are not minor issues.

Best regards,
Christian Schoenebeck