tree 7ca7ed37ea08413a9e36951ccbd50685ea55da20
parent b562b85c3a8c395d49aca6a46b321299d6e49ff1
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1493158376 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1496935532 -0700

rcuperf: Add writer_holdoff boot parameter

This commit adds a writer_holdoff boot parameter to rcuperf, which is
intended to be used to test Tree SRCU's auto-expediting.  This
boot parameter is in microseconds, and defaults to zero (that is,
disabled).  Set it to a bit larger than srcutree.exp_holdoff,
keeping the nanosecond/microsecond conversion, to force Tree SRCU
to auto-expedite more aggressively.

This commit also adds documentation for this parameter, and fixes some
alphabetization while in the neighborhood.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>