From: Kipp Aldrich <kippa@greshamstorage.com>
To: xfs@oss.sgi.com
Subject: O_DIRECT and bigphysarea
Date: Mon, 31 Dec 2007 12:00:15 -0600 [thread overview]
Message-ID: <47792E2F.1090906@greshamstorage.com> (raw)
Is it possible to read/write an xfs file opened with O_DIRECT to a
buffer obtained via bigphysarea? I have tried this and get "Bad Address"
errors. Buffers obtained via regular alloc methods work fine. The
bigphysarea buffers are correctly mmap'ed into user space, and show in
/proc/<pid>/maps. So, the question is can I do xfs O_DIRECT on
reads/writes to bigphysarea buffers?
Thanks. I am running 2.6 (2.6.21-rc3, from sgi cvs).
Kipp
--
Kipp A. Aldrich
reply other threads:[~2007-12-31 18:00 UTC|newest]
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