On 22/09/08 11:16AM, Ritesh Harjani (IBM) wrote: > On 22/09/07 07:59PM, Alexey Lyashkov wrote: > > From: Andrew Perepechko <anserper@xxxxx> > > > > LIFO wakeup order is unfair and sometimes leads to a journal > > user not being able to get a journal handle for hundreds of > > transactions in a row. > > > > FIFO wakeup can make things more fair. > > prepare_to_wait() will always add the task to the head of the list. > While prepare_to_wait_exclusive() will add the task to the tail since all of the > exclusive tasks are added to the tail. > wake_up() function will wake up all non-exclusive and single exclusive task > v/s > wake_up_all() function will wake up all tasks irrespective. > > So your change does makes the ordering to FIFO, in which the task which came in > first will be woken up first. With all other details which got discussed in other threads. This looks like the right thing to do. Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx>
