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| author |   Yury Norov <yury.norov@gmail.com> | 2021-04-20 20:13:25 -0700 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@kernel.org> | 2021-05-10 15:38:20 -0700 |
| commit | b18def121f077857ccf92fc620366e19850bc297 (patch) | |
| tree | b19cef760cf5a2e53c37633b6cfb365c75c6abac /lib/test_bitmap.c | |
| parent | Linux 5.13-rc1 (diff) | |
| download | linux-dev-b18def121f077857ccf92fc620366e19850bc297.tar.xz linux-dev-b18def121f077857ccf92fc620366e19850bc297.zip | |
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.c | 7 |
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}, |