diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2010-06-28 22:33:13 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-06-28 22:33:24 +0200 |
| commit | f384c954c9fe3d3c6fce5ae66b67f2ddd947d098 (patch) | |
| tree | a38541b8083a2304435e9a153d408bd7cd44116e /include/linux | |
| parent | 9a15a07fe2175dc25cd928a354b3839f562ac8cc (diff) | |
| parent | 5904b3b81d25166e5e39b9727645bb47937618e3 (diff) | |
| download | linux-next-f384c954c9fe3d3c6fce5ae66b67f2ddd947d098.tar.gz | |
Merge branch 'linus' into perf/core
Reason: Further changes conflict with upstream fixes
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cgroup.h | 20 | ||||
| -rw-r--r-- | include/linux/suspend.h | 26 | ||||
| -rw-r--r-- | include/linux/tracepoint.h | 1 |
3 files changed, 28 insertions, 19 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 0c621604baa1..e3d00fdb858d 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -525,13 +525,21 @@ static inline struct cgroup_subsys_state *cgroup_subsys_state( return cgrp->subsys[subsys_id]; } -static inline struct cgroup_subsys_state *task_subsys_state( - struct task_struct *task, int subsys_id) +/* + * function to get the cgroup_subsys_state which allows for extra + * rcu_dereference_check() conditions, such as locks used during the + * cgroup_subsys::attach() methods. + */ +#define task_subsys_state_check(task, subsys_id, __c) \ + rcu_dereference_check(task->cgroups->subsys[subsys_id], \ + rcu_read_lock_held() || \ + lockdep_is_held(&task->alloc_lock) || \ + cgroup_lock_is_held() || (__c)) + +static inline struct cgroup_subsys_state * +task_subsys_state(struct task_struct *task, int subsys_id) { - return rcu_dereference_check(task->cgroups->subsys[subsys_id], - rcu_read_lock_held() || - lockdep_is_held(&task->alloc_lock) || - cgroup_lock_is_held()); + return task_subsys_state_check(task, subsys_id, false); } static inline struct cgroup* task_cgroup(struct task_struct *task, diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 5e781d824e6d..bc7d6bb4cd8e 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -256,22 +256,22 @@ static inline int hibernate(void) { return -ENOSYS; } static inline bool system_entering_hibernation(void) { return false; } #endif /* CONFIG_HIBERNATION */ -#ifdef CONFIG_HIBERNATION_NVS -extern int hibernate_nvs_register(unsigned long start, unsigned long size); -extern int hibernate_nvs_alloc(void); -extern void hibernate_nvs_free(void); -extern void hibernate_nvs_save(void); -extern void hibernate_nvs_restore(void); -#else /* CONFIG_HIBERNATION_NVS */ -static inline int hibernate_nvs_register(unsigned long a, unsigned long b) +#ifdef CONFIG_SUSPEND_NVS +extern int suspend_nvs_register(unsigned long start, unsigned long size); +extern int suspend_nvs_alloc(void); +extern void suspend_nvs_free(void); +extern void suspend_nvs_save(void); +extern void suspend_nvs_restore(void); +#else /* CONFIG_SUSPEND_NVS */ +static inline int suspend_nvs_register(unsigned long a, unsigned long b) { return 0; } -static inline int hibernate_nvs_alloc(void) { return 0; } -static inline void hibernate_nvs_free(void) {} -static inline void hibernate_nvs_save(void) {} -static inline void hibernate_nvs_restore(void) {} -#endif /* CONFIG_HIBERNATION_NVS */ +static inline int suspend_nvs_alloc(void) { return 0; } +static inline void suspend_nvs_free(void) {} +static inline void suspend_nvs_save(void) {} +static inline void suspend_nvs_restore(void) {} +#endif /* CONFIG_SUSPEND_NVS */ #ifdef CONFIG_PM_SLEEP void save_processor_state(void); diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 9a59d1f98cd4..103d1b61aacb 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -14,6 +14,7 @@ * See the file COPYING for more details. */ +#include <linux/errno.h> #include <linux/types.h> #include <linux/rcupdate.h> |