diff options
| author | Ingo Molnar <mingo@kernel.org> | 2013-11-04 07:49:35 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-11-04 07:49:35 +0100 |
| commit | 2a3ede8cb2ddee5885518e4232aca13056f9a6e0 (patch) | |
| tree | 79b2b4e060a97b1e7c60d58549f8c97cb15db5dd /include | |
| parent | 0e73453e172aaa38fd59fd4d3fc589e8fc9b9a70 (diff) | |
| parent | 215432ed30393ed4a8f77db0a1fe34523c48cdba (diff) | |
| download | linux-2a3ede8cb2ddee5885518e4232aca13056f9a6e0.tar.bz2 | |
Merge branch 'perf/urgent' into perf/core to fix conflicts
Conflicts:
tools/perf/bench/numa.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ipc_namespace.h | 6 | ||||
| -rw-r--r-- | include/linux/percpu.h | 8 | ||||
| -rw-r--r-- | include/uapi/linux/perf_event.h | 12 |
3 files changed, 14 insertions, 12 deletions
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h index 19c19a5eee29..f6c82de12541 100644 --- a/include/linux/ipc_namespace.h +++ b/include/linux/ipc_namespace.h @@ -34,9 +34,9 @@ struct ipc_namespace { int sem_ctls[4]; int used_sems; - int msg_ctlmax; - int msg_ctlmnb; - int msg_ctlmni; + unsigned int msg_ctlmax; + unsigned int msg_ctlmnb; + unsigned int msg_ctlmni; atomic_t msg_bytes; atomic_t msg_hdrs; int auto_msgmni; diff --git a/include/linux/percpu.h b/include/linux/percpu.h index cc88172c7d9a..c74088ab103b 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -332,7 +332,7 @@ do { \ #endif #ifndef this_cpu_sub -# define this_cpu_sub(pcp, val) this_cpu_add((pcp), -(val)) +# define this_cpu_sub(pcp, val) this_cpu_add((pcp), -(typeof(pcp))(val)) #endif #ifndef this_cpu_inc @@ -418,7 +418,7 @@ do { \ # define this_cpu_add_return(pcp, val) __pcpu_size_call_return2(this_cpu_add_return_, pcp, val) #endif -#define this_cpu_sub_return(pcp, val) this_cpu_add_return(pcp, -(val)) +#define this_cpu_sub_return(pcp, val) this_cpu_add_return(pcp, -(typeof(pcp))(val)) #define this_cpu_inc_return(pcp) this_cpu_add_return(pcp, 1) #define this_cpu_dec_return(pcp) this_cpu_add_return(pcp, -1) @@ -586,7 +586,7 @@ do { \ #endif #ifndef __this_cpu_sub -# define __this_cpu_sub(pcp, val) __this_cpu_add((pcp), -(val)) +# define __this_cpu_sub(pcp, val) __this_cpu_add((pcp), -(typeof(pcp))(val)) #endif #ifndef __this_cpu_inc @@ -668,7 +668,7 @@ do { \ __pcpu_size_call_return2(__this_cpu_add_return_, pcp, val) #endif -#define __this_cpu_sub_return(pcp, val) __this_cpu_add_return(pcp, -(val)) +#define __this_cpu_sub_return(pcp, val) __this_cpu_add_return(pcp, -(typeof(pcp))(val)) #define __this_cpu_inc_return(pcp) __this_cpu_add_return(pcp, 1) #define __this_cpu_dec_return(pcp) __this_cpu_add_return(pcp, -1) diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index da48837d617d..e1802d6153ae 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -479,13 +479,15 @@ struct perf_event_mmap_page { /* * Control data for the mmap() data buffer. * - * User-space reading the @data_head value should issue an rmb(), on - * SMP capable platforms, after reading this value -- see - * perf_event_wakeup(). + * User-space reading the @data_head value should issue an smp_rmb(), + * after reading this value. * * When the mapping is PROT_WRITE the @data_tail value should be - * written by userspace to reflect the last read data. In this case - * the kernel will not over-write unread data. + * written by userspace to reflect the last read data, after issueing + * an smp_mb() to separate the data read from the ->data_tail store. + * In this case the kernel will not over-write unread data. + * + * See perf_output_put_handle() for the data ordering. */ __u64 data_head; /* head in the data section */ __u64 data_tail; /* user-space written tail */ |