From: "leilei.lin"
Do not install cgroup event into the CPU context and schedule it
if the cgroup is not running on this CPU
While there is no task of cgroup running specified CPU, current
kernel still install cgroup event into CPU context that causes
another cgroup event can't be installed into
From: "leilei.lin"
Do not install cgroup event into the CPU context and schedule it
if the cgroup is not running on this CPU
While there is no task of cgroup running specified CPU, current
kernel still install cgroup event into CPU context that causes
another cgroup event can't be installed into
From: "leilei.lin"
Do not install cgroup event into the CPU context and schedule it
if the cgroup is not running on this CPU
While there is no task of cgroup running specified CPU, current
kernel still install cgroup event into CPU context that causes
another cgroup event can't be installed into
From: "leilei.lin"
Do not install cgroup event into the CPU context and schedule it
if the cgroup is not running on this CPU
While there is no task of cgroup running specified CPU, current
kernel still install cgroup event into CPU context that causes
another cgroup event can't be installed into
From: "leilei.lin"
Do not install cgroup event into the CPU context and schedule it
if the cgroup is not running on this CPU
While there is no task of cgroup running specified CPU, current
kernel still install cgroup event into CPU context that causes
another cgroup event can't be installed into
From: "leilei.lin"
Do not install cgroup event into the CPU context and schedule it
if the cgroup is not running on this CPU
While there is no task of cgroup running specified CPU, current
kernel still install cgroup event into CPU context that causes
another cgroup event can't be installed into
From: "leilei.lin"
Do not install cgroup event into the CPU context if the cgroup
is not running on this CPU
While there is no task of cgroup running specified CPU, current
kernel still install cgroup event into CPU context, that causes
another cgroup event can't be installed into this CPU.
Sig
From: "leilei.lin"
Do not install cgroup event into the CPU context if the cgroup
is not running on this CPU
While there is no task of cgroup running specified CPU, current
kernel still install cgroup event into CPU context, that causes
another cgroup event can't be installed into this CPU.
Sig
From: "leilei.lin"
Do not install cgroup event into the CPU context if the cgroup
is not running on this CPU
While there is no task of cgroup running specified CPU, current
kernel still install cgroup event into CPU context, that causes
another cgroup event can't be installed into this CPU.
Sig
From: "leilei.lin"
This fix updating cgroup time when event is being scheduled in
by descendants
Signed-off-by: leilei.lin
Reviewed-and-tested-by: Jiri Olsa
---
kernel/events/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/events/core.c b/kernel/events/core.c
From: "leilei.lin"
This fix updating cgroup time when event is being scheduled in
by cgroup descendants
Signed-off-by: leilei.lin
---
kernel/events/core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 3e691b7..6f6bd1e 1
From: "leilei.lin"
A performance issue caused by less strickly check in task
sched when these tasks were once attached by per-task perf_event.
A task will alloc task->perf_event_ctxp[ctxn] when it was called
by perf_event_open, and task->perf_event_ctxp[ctxn] would not
ever be freed to NULL.
__
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