diff options
Diffstat (limited to 'include/linux/cpuset.h')
| -rw-r--r-- | include/linux/cpuset.h | 48 |
1 files changed, 28 insertions, 20 deletions
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index fea160ee5803..bfc204e70338 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -16,26 +16,26 @@ #ifdef CONFIG_CPUSETS -extern struct static_key cpusets_enabled_key; +extern struct static_key_false cpusets_enabled_key; static inline bool cpusets_enabled(void) { - return static_key_false(&cpusets_enabled_key); + return static_branch_unlikely(&cpusets_enabled_key); } static inline int nr_cpusets(void) { /* jump label reference count + the top-level cpuset */ - return static_key_count(&cpusets_enabled_key) + 1; + return static_key_count(&cpusets_enabled_key.key) + 1; } static inline void cpuset_inc(void) { - static_key_slow_inc(&cpusets_enabled_key); + static_branch_inc(&cpusets_enabled_key); } static inline void cpuset_dec(void) { - static_key_slow_dec(&cpusets_enabled_key); + static_branch_dec(&cpusets_enabled_key); } extern int cpuset_init(void); @@ -48,16 +48,25 @@ extern nodemask_t cpuset_mems_allowed(struct task_struct *p); void cpuset_init_current_mems_allowed(void); int cpuset_nodemask_valid_mems_allowed(nodemask_t *nodemask); -extern int __cpuset_node_allowed(int node, gfp_t gfp_mask); +extern bool __cpuset_node_allowed(int node, gfp_t gfp_mask); -static inline int cpuset_node_allowed(int node, gfp_t gfp_mask) +static inline bool cpuset_node_allowed(int node, gfp_t gfp_mask) { - return nr_cpusets() <= 1 || __cpuset_node_allowed(node, gfp_mask); + if (cpusets_enabled()) + return __cpuset_node_allowed(node, gfp_mask); + return true; } -static inline int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask) +static inline bool __cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask) { - return cpuset_node_allowed(zone_to_nid(z), gfp_mask); + return __cpuset_node_allowed(zone_to_nid(z), gfp_mask); +} + +static inline bool cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask) +{ + if (cpusets_enabled()) + return __cpuset_zone_allowed(z, gfp_mask); + return true; } extern int cpuset_mems_allowed_intersects(const struct task_struct *tsk1, @@ -137,8 +146,6 @@ static inline void set_mems_allowed(nodemask_t nodemask) task_unlock(current); } -extern void cpuset_post_attach_flush(void); - #else /* !CONFIG_CPUSETS */ static inline bool cpusets_enabled(void) { return false; } @@ -174,14 +181,19 @@ static inline int cpuset_nodemask_valid_mems_allowed(nodemask_t *nodemask) return 1; } -static inline int cpuset_node_allowed(int node, gfp_t gfp_mask) +static inline bool cpuset_node_allowed(int node, gfp_t gfp_mask) { - return 1; + return true; } -static inline int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask) +static inline bool __cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask) { - return 1; + return true; +} + +static inline bool cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask) +{ + return true; } static inline int cpuset_mems_allowed_intersects(const struct task_struct *tsk1, @@ -245,10 +257,6 @@ static inline bool read_mems_allowed_retry(unsigned int seq) return false; } -static inline void cpuset_post_attach_flush(void) -{ -} - #endif /* !CONFIG_CPUSETS */ #endif /* _LINUX_CPUSET_H */ |