Hello!
This series allows "all", "none", and "last" to be used in cpumask
strings. This allows these strings to be less dependent on the underlying
system. For example, currently a string specifying all but the first
CPU must be "1-7" on an eight-CPU system and "1-15" on a 16-CPU system.
With this series, the single string "1-last" can be used regardless of the
number of CPUs (at least assuming that each system has at least one CPU).
1. Un-inline cpulist_parse for SMP; prepare for ascii helpers,
courtesy of Paul Gortmaker.
2. Make "all" alias global and not just RCU, courtesy of Paul
Gortmaker.
3. Add a "none" alias to complement "all", courtesy of Paul
Gortmaker.
4. Add "last" alias for cpu list specifications, courtesy of Paul
Gortmaker.
5. Use "all" and "last" in "nohz_full" and "rcu_nocbs".
Thanx, Paul
------------------------------------------------------------------------
Documentation/admin-guide/kernel-parameters.rst | 20 +
Documentation/admin-guide/kernel-parameters.txt | 4
include/linux/cpumask.h | 8
kernel/rcu/tree_plugin.h | 13 -
lib/cpumask.c | 136 ++++++++++++-
tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot | 2
tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot | 2
7 files changed, 169 insertions(+), 16 deletions(-)
