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From: David Howells <dhowells@redhat.com>
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References: <859.1490824354@warthog.procyon.org.uk> <29183.1490711359@warthog.procyon.org.uk>
Subject: The XFS_IOC_FSGEOMETRY ioctl doesn't like fds that are opened O_PATH
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Date: Thu, 30 Mar 2017 00:57:08 +0100
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To: linux-xfs <linux-xfs@vger.kernel.org>
Cc: dhowells@redhat.com, Andreas Dilger <adilger@dilger.ca>, Christoph Hellwig <hch@infradead.org>, linux-fsdevel@vger.kernel.org, Eric Sandeen <sandeen@sandeen.net>

Should XFS_IOC_FSGEOMETRY work on fds that are opened O_PATH on an XFS
filesystem?  Or should xfs_io not call that ioctl on O_PATH fds?

David