x86: run-time callers of map_pages_to_xen() must check for errors

Again, (out-of-memory) errors must not cause hypervisor crashes, and
hence ought to be propagated.

This also adjusts the cache attribute changing loop in
get_page_from_l1e() to not go through an unnecessary iteration. While
this could be considered mere cleanup, it is actually a requirement
for the subsequent now necessary error recovery path.

Also make a few functions static, easing the check for potential
callers needing adjustment.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
xen-unstable changeset:   22997:5f28dcea1355
xen-unstable date:        Wed Mar 09 16:15:36 2011 +0000


x86: don't BUG() post-boot in alloc_xen_pagetable()

Instead, propagate the condition to the caller, all of which also get
adjusted to check for that situation.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
xen-unstable changeset:   22996:1eeccafe9042
xen-unstable date:        Wed Mar 09 16:14:59 2011 +0000

0 files changed, 0 insertions, 0 deletions