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authorYury Norov <yury.norov@gmail.com>2021-04-21 06:13:25 +0300
committerPaul E. McKenney <paulmck@kernel.org>2021-05-11 01:38:20 +0300
commitb18def121f077857ccf92fc620366e19850bc297 (patch)
treeb19cef760cf5a2e53c37633b6cfb365c75c6abac /lib/test_bitmap.c
parent6efb943b8616ec53a5e444193dccf1af9ad627b5 (diff)
downloadlinux-b18def121f077857ccf92fc620366e19850bc297.tar.xz
bitmap_parse: Support 'all' semantics
RCU code supports an 'all' group as a special case when parsing rcu_nocbs parameter. This patch moves the 'all' support to the core bitmap_parse code, so that all bitmap users can enjoy this extension. Moving 'all' parsing to a bitmap_parse level also allows users to pass patterns together with 'all' in regular group:pattern format, for example, "rcu_nocbs=all:1/2" would offload all the even-numbered CPUs regardless of the number of CPUs on the system. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'lib/test_bitmap.c')
-rw-r--r--lib/test_bitmap.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c
index 9cd575583180..4ea73f5aed41 100644
--- a/lib/test_bitmap.c
+++ b/lib/test_bitmap.c
@@ -366,6 +366,13 @@ static const struct test_bitmap_parselist parselist_tests[] __initconst = {
{0, "0-31:1/3,1-31:1/3,2-31:1/3", &exp1[8 * step], 32, 0},
{0, "1-10:8/12,8-31:24/29,0-31:0/3", &exp1[9 * step], 32, 0},
+ {0, "all", &exp1[8 * step], 32, 0},
+ {0, "0, 1, all, ", &exp1[8 * step], 32, 0},
+ {0, "all:1/2", &exp1[4 * step], 32, 0},
+ {0, "ALL:1/2", &exp1[4 * step], 32, 0},
+ {-EINVAL, "al", NULL, 8, 0},
+ {-EINVAL, "alll", NULL, 8, 0},
+
{-EINVAL, "-1", NULL, 8, 0},
{-EINVAL, "-0", NULL, 8, 0},
{-EINVAL, "10-1", NULL, 8, 0},