linux-kernel - Re: [PATCH v2] fs: try an opportunistic lookup for O

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Message-ID: <20240816-weiden-netzhaut-23262d8778ef@brauner>
Date: Fri, 16 Aug 2024 10:34:12 +0200
From: Christian Brauner <brauner@...nel.org>
To: Al Viro <viro@...iv.linux.org.uk>
Cc: Jeff Layton <jlayton@...nel.org>, Jan Kara <jack@...e.cz>, 
	Andrew Morton <akpm@...ux-foundation.org>, Mateusz Guzik <mjguzik@...il.com>, 
	Josef Bacik <josef@...icpanda.com>, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] fs: try an opportunistic lookup for O_CREAT opens too

On Wed, Aug 14, 2024 at 04:44:19PM GMT, Al Viro wrote:
> On Wed, Aug 14, 2024 at 02:40:23PM +0200, Christian Brauner wrote:
> > > Christian took in my v3 patch which is a bit different from this one.
> > > It seems to be doing fine in testing with NFS and otherwise.
> > 
> > Every branch gets tested with nfs fstests (in addition to the usual
> > suspects):
> > 
> > Failures: generic/732
> > Failed 1 of 600 tests
> > 
> > And that just fails because it's missing your 4fd042e0465c
> > ("generic/732: don't run it on NFS")
> 
> connectathon would be more interesting...

Fwiw, I wasted almost a day to get more testing done here. But that
connectathon thing at [1] just failed to compile on anything reasonably
new and with errors that indicate that certain apis it uses have been
deprecated for a very long time.

In any case, I went out of my way and found that LTP has stresstests for
NFS for creation, open, mkdir, unlink etc and I added them to testing
now.

[1]: https://github.com/dkruchinin/cthon-nfs-tests