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| author | Rob Herring <[email protected]> | 2019-08-23 02:12:14 +0000 |
|---|---|---|
| committer | Rob Herring <[email protected]> | 2019-08-28 15:02:39 +0000 |
| commit | 55b9a0549e4303ca43481f9ba2cdfa305277d97d (patch) | |
| tree | b8520f2a5fd14c1508588c1501ce0cb591d9fc38 /drivers/gpu/drm/lima/lima_gem.c | |
| parent | drm/shmem: Use mutex_trylock in drm_gem_shmem_purge (diff) | |
| download | kernel-55b9a0549e4303ca43481f9ba2cdfa305277d97d.tar.gz kernel-55b9a0549e4303ca43481f9ba2cdfa305277d97d.zip | |
drm/panfrost: Use mutex_trylock in panfrost_gem_purge
Lockdep reports a circular locking dependency with pages_lock taken in
the shrinker callback. The deadlock can't actually happen with current
users at least as a BO will never be purgeable when pages_lock is held.
To be safe, let's use mutex_trylock() instead and bail if a BO is locked
already.
Cc: Tomeu Vizoso <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Daniel Vetter <[email protected]>
Signed-off-by: Rob Herring <[email protected]>
Reviewed-by: Steven Price <[email protected]>
Acked-by: Alyssa Rosenzweig <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/gpu/drm/lima/lima_gem.c')
0 files changed, 0 insertions, 0 deletions