From: Olaf Kirch <okir@suse.de>
To: nfs@lists.sourceforge.net
Subject: NFS direct IO needs page lock?
Date: Tue, 15 Feb 2005 21:36:54 +0100 [thread overview]
Message-ID: <20050215203654.GA15634@suse.de> (raw)
Hi,
I'm currently looking at a customer problem problem with weird VM oopses
that is somehow related to a large application doing heavy NFS direct
IO to/from a POSIX shmem area (hm, what application would *that* be :-).
I haven't had a bright idea so far, and I'm not even convinced this is
NFS related at all - but one thing that struck me as odd when meditated
over the code today was that the directio code doesn't lock the pages
in nfs_get_user_pages. Is that an oversight, or does it do that
intentionally?
Olaf
--
Olaf Kirch | --- o --- Nous sommes du soleil we love when we play
okir@suse.de | / | \ sol.dhoop.naytheet.ah kin.ir.samse.qurax
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next reply other threads:[~2005-02-15 20:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-15 20:36 Olaf Kirch [this message]
2005-02-15 22:51 ` NFS direct IO needs page lock? Trond Myklebust
2005-02-17 15:34 ` Olaf Kirch
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