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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-09 16:42:04 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-10 13:44:07 +0000 |
| commit | 9fab8a2ea0d39343da077eeaa386ceeba10ca316 (patch) | |
| tree | 4b39030d02a7922d1c69a08fb5d86696eb442d8d /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | 3824e41975ae55539de016dccc55e791d46a55bd (diff) | |
drm/i915: Removing polling for struct_mutex from vmap shrinker
The wait-for-idle used from within the shrinker_lock_uninterruptible
depends on the struct_mutex locking state being known and declared to
i915_request_wait(). As it is conceivable that we reach the vmap
notifier from underneath struct_mutex (and so keep on relying on the
mutex_trylock_recursive), we should not blindly call i915_request_wait.
In the process we can remove the dubious polling to acquire
struct_mutex, and simply act, or not, on a successful trylock.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190109164204.23935-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
0 files changed, 0 insertions, 0 deletions