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From: "J. R. Okajima" <hooanon05g@gmail.com>
To: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
	linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	Jeff Layton <jlayton@primarydata.com>
Subject: Re: [PATCH] dcache: return -ESTALE not -EBUSY on distributed fs race
Date: Fri, 19 Dec 2014 01:27:14 +0900	[thread overview]
Message-ID: <13170.1418920034@jrobl> (raw)
In-Reply-To: <20141218155838.GD18179@fieldses.org>


"J. Bruce Fields":
> Why do you think -EBUSY's the right error in the local filesystem case?

This busy_or_stale() is another bandaid, based upon your patch, EBUSY
--> ESTALE.
Because the msg string of ESTALE is "Stale NFS file handle" on many
systems, I don't think it a good idea to return it for local fs. If you
think EIO is better than EBUSY you can change it to eio_or_stale(). If
you think it is surely not happen on every local fs, then this inline
function is not necessary.


J. R. Okajima

WARNING: multiple messages have this Message-ID (diff)
From: "J. R. Okajima" <hooanon05g-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: "J. Bruce Fields" <bfields-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
Cc: Al Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>,
	linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Jeff Layton <jlayton-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>
Subject: Re: [PATCH] dcache: return -ESTALE not -EBUSY on distributed fs race
Date: Fri, 19 Dec 2014 01:27:14 +0900	[thread overview]
Message-ID: <13170.1418920034@jrobl> (raw)
In-Reply-To: <20141218155838.GD18179-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>


"J. Bruce Fields":
> Why do you think -EBUSY's the right error in the local filesystem case?

This busy_or_stale() is another bandaid, based upon your patch, EBUSY
--> ESTALE.
Because the msg string of ESTALE is "Stale NFS file handle" on many
systems, I don't think it a good idea to return it for local fs. If you
think EIO is better than EBUSY you can change it to eio_or_stale(). If
you think it is surely not happen on every local fs, then this inline
function is not necessary.


J. R. Okajima
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  reply	other threads:[~2014-12-18 16:27 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-17 19:59 [PATCH] dcache: return -ESTALE not -EBUSY on distributed fs race J. Bruce Fields
2014-12-17 20:01 ` J. Bruce Fields
2014-12-17 20:01   ` J. Bruce Fields
2014-12-18 15:50   ` J. R. Okajima
2014-12-18 15:58     ` J. Bruce Fields
2014-12-18 15:58       ` J. Bruce Fields
2014-12-18 16:27       ` J. R. Okajima [this message]
2014-12-18 16:27         ` J. R. Okajima
2014-12-18 17:32         ` Jeff Layton
2014-12-18 23:15         ` Dave Chinner
2014-12-18 23:15           ` Dave Chinner
2014-12-19  2:46           ` J. R. Okajima
2014-12-19 11:09             ` Jeff Layton
2014-12-19 11:09               ` Jeff Layton
2014-12-22  9:53               ` J. R. Okajima
  -- strict thread matches above, loose matches on Subject: below --
2015-02-10 15:55 J. Bruce Fields
2015-02-10 15:55 ` J. Bruce Fields
2015-02-18 15:03 ` J. Bruce Fields
2015-02-24 21:22   ` J. Bruce Fields
2015-02-24 21:22     ` J. Bruce Fields

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