xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge commit 'v3.1-rc7' into perf/core

Browse Source 
Merge reason: Pick up the latest upstream fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2011-09-26 12:53:42 +02:00
parent cba9bd22a5 d93dc5c447
commit ed3982cf37
870 changed files with 9655 additions and 5241 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
kernel/events/core.c
View File

@@ -400,14 +400,54 @@ void perf_cgroup_switch(struct task_struct *task, int mode)
local_irq_restore(flags);
}
static inline void perf_cgroup_sched_out(struct task_struct *task)
static inline void perf_cgroup_sched_out(struct task_struct *task,
struct task_struct *next)
{
perf_cgroup_switch(task, PERF_CGROUP_SWOUT);
struct perf_cgroup *cgrp1;
struct perf_cgroup *cgrp2 = NULL;
/*
* we come here when we know perf_cgroup_events > 0
*/
cgrp1 = perf_cgroup_from_task(task);
/*
* next is NULL when called from perf_event_enable_on_exec()
* that will systematically cause a cgroup_switch()
*/
if (next)
cgrp2 = perf_cgroup_from_task(next);
/*
* only schedule out current cgroup events if we know
* that we are switching to a different cgroup. Otherwise,
* do no touch the cgroup events.
*/
if (cgrp1 != cgrp2)
perf_cgroup_switch(task, PERF_CGROUP_SWOUT);
}
static inline void perf_cgroup_sched_in(struct task_struct *task)
static inline void perf_cgroup_sched_in(struct task_struct *prev,
struct task_struct *task)
{
perf_cgroup_switch(task, PERF_CGROUP_SWIN);
struct perf_cgroup *cgrp1;
struct perf_cgroup *cgrp2 = NULL;
/*
* we come here when we know perf_cgroup_events > 0
*/
cgrp1 = perf_cgroup_from_task(task);
/* prev can never be NULL */
cgrp2 = perf_cgroup_from_task(prev);
/*
* only need to schedule in cgroup events if we are changing
* cgroup during ctxsw. Cgroup events were not scheduled
* out of ctxsw out if that was not the case.
*/
if (cgrp1 != cgrp2)
perf_cgroup_switch(task, PERF_CGROUP_SWIN);
}
static inline int perf_cgroup_connect(int fd, struct perf_event *event,
@@ -519,11 +559,13 @@ static inline void update_cgrp_time_from_cpuctx(struct perf_cpu_context *cpuctx)
{
}
static inline void perf_cgroup_sched_out(struct task_struct *task)
static inline void perf_cgroup_sched_out(struct task_struct *task,
struct task_struct *next)
{
}
static inline void perf_cgroup_sched_in(struct task_struct *task)
static inline void perf_cgroup_sched_in(struct task_struct *prev,
struct task_struct *task)
{
}
@@ -1989,7 +2031,7 @@ void __perf_event_task_sched_out(struct task_struct *task,
* cgroup event are system-wide mode only
*/
if (atomic_read(&__get_cpu_var(perf_cgroup_events)))
perf_cgroup_sched_out(task);
perf_cgroup_sched_out(task, next);
}
static void task_ctx_sched_out(struct perf_event_context *ctx)
@@ -2154,7 +2196,8 @@ static void perf_event_context_sched_in(struct perf_event_context *ctx,
* accessing the event control register. If a NMI hits, then it will
* keep the event running.
*/
void __perf_event_task_sched_in(struct task_struct *task)
void __perf_event_task_sched_in(struct task_struct *prev,
struct task_struct *task)
{
struct perf_event_context *ctx;
int ctxn;
@@ -2172,7 +2215,7 @@ void __perf_event_task_sched_in(struct task_struct *task)
* cgroup event are system-wide mode only
*/
if (atomic_read(&__get_cpu_var(perf_cgroup_events)))
perf_cgroup_sched_in(task);
perf_cgroup_sched_in(prev, task);
}
static u64 perf_calculate_period(struct perf_event *event, u64 nsec, u64 count)
@@ -2428,7 +2471,7 @@ static void perf_event_enable_on_exec(struct perf_event_context *ctx)
* ctxswin cgroup events which are already scheduled
* in.
*/
perf_cgroup_sched_out(current);
perf_cgroup_sched_out(current, NULL);
raw_spin_lock(&ctx->lock);
task_ctx_sched_out(ctx);
@@ -3354,8 +3397,8 @@ static int perf_event_index(struct perf_event *event)
}
static void calc_timer_values(struct perf_event *event,
u64 *running,
u64 *enabled)
u64 *enabled,
u64 *running)
{
u64 now, ctx_time;