diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-07-31 09:50:14 +0100 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2020-09-07 13:19:11 +0300 |
| commit | 9ff33bbcda259a7d1d4df8c977b32cf431972387 (patch) | |
| tree | 7ba089e2c6e79c3af47e083811cf6ceae4dec2ad /crypto/crc32c_generic.c | |
| parent | e28860ae21da258a1f983b52941a3f581281d114 (diff) | |
drm/i915: Reduce locking around i915_active_acquire_preallocate_barrier()
As the conversion between idle-barrier and full i915_active_fence is
already serialised by explicit memory barriers, we can reduce the
spinlock in i915_active_acquire_preallocate_barrier() for finding an
idle-barrier to reuse to an RCU read lock to ensure the fence remains
valid, only taking the spinlock for the update of the rbtree itself.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Thomas Hellström <thomas.hellstrom@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200731085015.32368-6-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'crypto/crc32c_generic.c')
0 files changed, 0 insertions, 0 deletions