From: hooanon05@yahoo.co.jp
To: David Woodhouse <dwmw2@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>
Subject: Re: Q: NFSD readdir in linux-2.6.28
Date: Fri, 20 Mar 2009 00:34:50 +0900 [thread overview]
Message-ID: <8913.1237476890@jrobl> (raw)
In-Reply-To: <1237475837.16359.106.camel@macbook.infradead.org>
David Woodhouse:
> Yes, well spotted. It didn't matter when the buffered readdir() was
> purely internal to XFS, because it didn't matter there that we called
> ->lookup() without i_mutex set. But now we're exposing arbitrary file
> systems to it, we need to make sure we follow the locking rules.
>
> I _think_ it's sufficient to make the affected callers of
> lookup_one_len() lock the parent's i_mutex for themselves before calling
> it. I'll take a closer look...
If you remember why you discarded the FS_NO_LOOKUP_IN_READDIR flag
approach, please let me know. URL or something is enough.
Thanx
J. R. Okajima
next prev parent reply other threads:[~2009-03-19 15:35 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-19 14:54 Q: NFSD readdir in linux-2.6.28 hooanon05
2009-03-19 15:17 ` David Woodhouse
2009-03-19 15:34 ` hooanon05 [this message]
2009-03-19 15:51 ` David Woodhouse
2009-04-17 9:32 ` David Woodhouse
2009-04-17 19:32 ` Al Viro
2009-04-17 22:17 ` David Woodhouse
2009-04-17 22:43 ` Al Viro
2009-04-17 22:51 ` David Woodhouse
2009-04-17 22:53 ` Al Viro
2009-04-17 22:55 ` David Woodhouse
2009-04-17 23:23 ` David Woodhouse
2009-04-17 23:37 ` Al Viro
2009-04-17 23:39 ` Al Viro
2009-04-18 0:15 ` [PATCH] Fix i_mutex handling in nfsd readdir David Woodhouse
2009-04-18 3:11 ` hooanon05
2009-04-18 14:25 ` Al Viro
2009-04-19 7:18 ` David Woodhouse
2009-04-19 12:27 ` [PATCH v2] " David Woodhouse
2009-04-19 20:51 ` J. Bruce Fields
2009-04-20 19:50 ` J. Bruce Fields
2009-04-21 0:29 ` Al Viro
2009-04-21 21:15 ` J. Bruce Fields
2009-04-21 21:54 ` Al Viro
2009-05-11 23:16 ` J. Bruce Fields
2009-04-22 4:41 ` hooanon05
2009-04-22 19:12 ` J. Bruce Fields
2009-04-23 6:40 ` hooanon05
2009-04-23 20:27 ` J. Bruce Fields
2009-05-05 23:35 ` J. Bruce Fields
2009-05-06 5:09 ` hooanon05
2009-05-06 20:20 ` J. Bruce Fields
2009-05-07 4:38 ` hooanon05
2009-05-08 18:47 ` J. Bruce Fields
2009-03-19 15:37 ` Q: NFSD readdir in linux-2.6.28 Matthew Wilcox
2009-03-19 15:45 ` hooanon05
2009-03-19 16:01 ` David Woodhouse
2009-04-16 21:45 ` J. Bruce Fields
2009-04-17 4:13 ` hooanon05
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