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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2009-11-17 14:08:54 -0800 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-11-24 13:02:30 +1000 |
| commit | 79cc304f3e2fda202242036326afb2aeca486156 (patch) | |
| tree | c8bcdd91b36e8663b94911c6ac2481eadbe53bb0 /drivers/gpu/drm/drm_fb_helper.c | |
| parent | f82f5f3ac4de6c6b872fcbb3dec97f368e78ff58 (diff) | |
| download | op-kernel-dev-79cc304f3e2fda202242036326afb2aeca486156.zip op-kernel-dev-79cc304f3e2fda202242036326afb2aeca486156.tar.gz | |
drm: make sure page protections are updated after changing vm_flags
Some architectures compute ->vm_page_prot depending on ->vm_flags, so we
need to update the protections after adjusting the flags.
AFAIK this only affects running X under Xen; without this patch you get
lots of coloured blobs on the screen, or maybe a complete lockup. Or
anything really.
But that still depends on lots of out-of-tree stuff, so I don't think
there are any consequences for anyone else. But it is wrong in principle.
Reported-by: Jan Beulich <JBeulich@novell.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
0 files changed, 0 insertions, 0 deletions
