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| author | Paul Gortmaker <paul.gortmaker@windriver.com> | 2021-02-21 11:08:27 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-03-09 01:16:58 +0300 |
| commit | 3e70df91f961b9df7ab3c0ae1934bdf15454c536 (patch) | |
| tree | 1a6379c4210ece30796e372df35e857b71cfa9ac /Documentation/admin-guide | |
| parent | 99c58d1adbca25fb3ee2469bf0904e1e3e021f7e (diff) | |
| download | linux-3e70df91f961b9df7ab3c0ae1934bdf15454c536.tar.xz | |
rcu: deprecate "all" option to rcu_nocbs=
With the core bitmap support now accepting "N" as a placeholder for
the end of the bitmap, "all" can be represented as "0-N" and has the
advantage of not being specific to RCU (or any other subsystem).
So deprecate the use of "all" by removing documentation references
to it. The support itself needs to remain for now, since we don't
know how many people out there are using it currently, but since it
is in an __init area anyway, it isn't worth losing sleep over.
Cc: Yury Norov <yury.norov@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Acked-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 04545725f187..83e2ef192de9 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4068,9 +4068,7 @@ see CONFIG_RAS_CEC help text. rcu_nocbs= [KNL] - The argument is a cpu list, as described above, - except that the string "all" can be used to - specify every CPU on the system. + The argument is a cpu list, as described above. In kernels built with CONFIG_RCU_NOCB_CPU=y, set the specified list of CPUs to be no-callback CPUs. |