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| author | Linux Build Service Account <lnxbuild@quicinc.com> | 2017-07-03 07:57:50 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2017-07-03 07:57:50 -0700 |
| commit | e82415666d470a57a3fd4835a4fc2b952df4a55e (patch) | |
| tree | 0dc7efe91590709a6769479158ead28ccac3419e /include/linux | |
| parent | 37541eb4b833b4cb92d9d860b40e40f4e9350e11 (diff) | |
| parent | 76aa496f898a16266be01a1543797804d4baa149 (diff) | |
Merge "cpu-hotplug: Keep atleast 1 online and un-isolated CPU"
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpumask.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 7e956e33618f..94013037585e 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -98,6 +98,13 @@ extern const struct cpumask *const cpu_isolated_mask; #define num_present_cpus() cpumask_weight(cpu_present_mask) #define num_active_cpus() cpumask_weight(cpu_active_mask) #define num_isolated_cpus() cpumask_weight(cpu_isolated_mask) +#define num_online_uniso_cpus() \ +({ \ + cpumask_t mask; \ + \ + cpumask_andnot(&mask, cpu_online_mask, cpu_isolated_mask); \ + cpumask_weight(&mask); \ +}) #define cpu_online(cpu) cpumask_test_cpu((cpu), cpu_online_mask) #define cpu_possible(cpu) cpumask_test_cpu((cpu), cpu_possible_mask) #define cpu_present(cpu) cpumask_test_cpu((cpu), cpu_present_mask) @@ -109,6 +116,7 @@ extern const struct cpumask *const cpu_isolated_mask; #define num_present_cpus() 1U #define num_active_cpus() 1U #define num_isolated_cpus() 0U +#define num_online_uniso_cpus() 1U #define cpu_online(cpu) ((cpu) == 0) #define cpu_possible(cpu) ((cpu) == 0) #define cpu_present(cpu) ((cpu) == 0) |