On 05/12/2016 03:56 PM, Waiman Long wrote: > In __rwsem_do_wake(), the reader wakeup code will assume a writer > has stolen the lock if the active reader/writer count is not 0. > However, this is not as reliable an indicator as the original > "< RWSEM_WAITING_BIAS" check. If another reader is present, the code > will still break out and exit even if the writer is gone. This patch > changes it to check the same "< RWSEM_WAITING_BIAS" condition to > reduce the chance of false positive.
Nice. Reviewed-by: Peter Hurley <pe...@hurleysoftware.com>
