diff options
| -rw-r--r-- | kernel/sched/isolation.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/kernel/sched/isolation.c b/kernel/sched/isolation.c index 8f666bc5abe8..b71b436f59f2 100644 --- a/kernel/sched/isolation.c +++ b/kernel/sched/isolation.c @@ -11,6 +11,7 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/static_key.h> +#include <linux/ctype.h> DEFINE_STATIC_KEY_FALSE(housekeeping_overriden); EXPORT_SYMBOL_GPL(housekeeping_overriden); @@ -126,6 +127,29 @@ __setup("nohz_full=", housekeeping_nohz_full_setup); static int __init housekeeping_isolcpus_setup(char *str) { - return housekeeping_setup(str, HK_FLAG_DOMAIN); + unsigned int flags = 0; + + while (isalpha(*str)) { + if (!strncmp(str, "nohz,", 5)) { + str += 5; + flags |= HK_FLAG_TICK; + continue; + } + + if (!strncmp(str, "domain,", 7)) { + str += 7; + flags |= HK_FLAG_DOMAIN; + continue; + } + + pr_warn("isolcpus: Error, unknown flag\n"); + return 0; + } + + /* Default behaviour for isolcpus without flags */ + if (!flags) + flags |= HK_FLAG_DOMAIN; + + return housekeeping_setup(str, flags); } __setup("isolcpus=", housekeeping_isolcpus_setup); |