From: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Date: Thu, 3 Feb 2011 17:18:59 +0000 (-0500)
Subject: xen-gntdev: Change page limit to be global instead of per-open
X-Git-Tag: v2.6.39-rc1~439^3~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef91082e90491ac99343a13f9aeff4669835c6cc;p=pandora-kernel.git

xen-gntdev: Change page limit to be global instead of per-open

Because there is no limitation on how many times a user can open a
given device file, an per-file-description limit on the number of
pages granted offers little to no benefit. Change to a global limit
and remove the ioctl() as the parameter can now be changed via sysfs.

Xen tools changeset 22768:f8d801e5573e is needed to eliminate the
error this change produces in xc_gnttab_set_max_grants.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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