NAME¶

reservation_object_lock - lock the reservation object

SYNOPSIS¶

int reservation_object_lock(struct reservation_object * obj, struct ww_acquire_ctx * ctx);

ARGUMENTS¶

obj

ctx

DESCRIPTION¶

Locks the reservation object for exclusive access and modification. Note, that the lock is only against other writers, readers will run concurrently with a writer under RCU. The seqlock is used to notify readers if they overlap with a writer.

As the reservation object may be locked by multiple parties in an undefined order, a #ww_acquire_ctx is passed to unwind if a cycle is detected. See ww_mutex_lock and ww_acquire_init. A reservation object may be locked by itself by passing NULL as ctx.

COPYRIGHT¶