Improve write un-protecting of kernel memory. For the Computrace module

on the HP EliteBook 830 G6 we added a workaround which tries to re-map
the pages where we want to place to kernel read-write.  On some machines
though this workaround causes a regression.  Fix those by changing a few
things:  Only set the writeable bit if it isn't set yet.  Un-protect
write-protected page directories.  Skip lower levels if large-page is
set, since the next level is already a page.  Don't do anything at all
if paging is disabled.

From Christian Ehrhardt
ok bluhm@ tobhe@

0 files changed, 0 insertions, 0 deletions