rcu: Add synchronize_sched_expedited() rcutorture doc + updates

This patch updates the rcutorture documentation to include
updated output format.  It also brings the RCU documentation up
to date.

Signed-off-by: Paul E. McKenney <[email protected]>
Cc: [email protected]
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LKML-Reference: <12459460983193-git-send-email->
Signed-off-by: Ingo Molnar <[email protected]>
6 files changed