Name
struct drm_modeset_acquire_ctx —
locking context (see ww_acquire_ctx)
Synopsis
struct drm_modeset_acquire_ctx {
struct ww_acquire_ctx ww_ctx;
struct drm_modeset_lock * contended;
struct list_head locked;
bool trylock_only;
}; Members
- ww_ctx
base acquire ctx
- contended
used internally for -EDEADLK handling
- locked
list of held locks
- trylock_only
trylock mode used in atomic contexts/panic notifiers
Description
Each thread competing for a set of locks must use one acquire
ctx. And if any lock fxn returns -EDEADLK, it must backoff and
retry.