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Date: Tue, 17 May 2016 11:27:21 +0100 From: David Vrabel <david.vrabel@...rix.com> To: Alexander Viro <viro@...iv.linux.org.uk> CC: David Vrabel <david.vrabel@...rix.com>, <linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <xen-devel@...ts.xenproject.org>, "Boris Ostrovsky" <boris.ostrovsky@...cle.com>, Juergen Gross <jgross@...e.com> Subject: libfs,xenfs: replace /proc/xen/xenbus with a symlink Using /proc/xen/xenbus can cause deadlocks on the atomic file position mutex since this file should behave like a character device and not a regular file. This is easiest to achive by making it a symlink to the existing /dev/xen/xenbus device. This requires extending simple_fill_super() to add symlinks as well as regular files. David
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