More PAE PGD fixes. Ensure we do not pin PGDs with no kernel
authorkaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk>
Thu, 24 Nov 2005 18:16:13 +0000 (19:16 +0100)
committerkaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk>
Thu, 24 Nov 2005 18:16:13 +0000 (19:16 +0100)
commit3074eec09f3609daa2eb4590ffb0ec48f1897432
treea4e4b9737b12cfb527e4253e1edb4f1d94b593f3
parentd702ee35e24119b37ebac2cd763becff8c51c03c
More PAE PGD fixes. Ensure we do not pin PGDs with no kernel
PMD (Xen will not allow it). This is okay even across
suspend/resume -- such PGDs are completely empty and so
contain no PTEs that become garbage across suspend/resume.

Signed-off-by: Keir Fraser <keir@xensource.com>
linux-2.6-xen-sparse/arch/xen/i386/mm/pgtable.c