diff options
author | Thomas Hellstrom <thellstrom@vmware.com> | 2010-11-11 10:04:53 +0100 |
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committer | Dave Airlie <airlied@redhat.com> | 2010-11-18 15:00:42 +1000 |
commit | 95ccb0f3bdc4438bf470c25450e6a8a6090ca253 (patch) | |
tree | a4a55496a9483ddf43d8bd72c149341536628874 /drivers/gpu/drm/radeon | |
parent | 9a03d3487abe89e3650bb2533c5d909143955499 (diff) |
drm/ttm: Fix up a theoretical deadlock
A process suspended waiting for a higher sequence or no sequence to unreserve,
a bo may be beaten to the reservation by a process with a lower sequence.
In that case the first process should give up trying to reserve and
return -EAGAIN. In order for that to happen, we must wake waiting processes
when we change sequence, so that they have a chance to detect the new
sequence.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon')
0 files changed, 0 insertions, 0 deletions