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author | Ingo Molnar <mingo@kernel.org> | 2018-03-31 07:30:17 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2018-03-31 07:30:17 +0200 |
commit | 169310f71fc820fe153ec04c6a111e444a68d6d5 (patch) | |
tree | a586d0f08548159ceb8527ff59f8414579f70c1f /kernel/events/core.c | |
parent | b3c39758c8a6972f02b43f83dba7fe7a352371b9 (diff) | |
parent | c2a9838452a4d71f76103c18c926468a9ea05713 (diff) | |
download | linux-stable-169310f71fc820fe153ec04c6a111e444a68d6d5.tar.gz linux-stable-169310f71fc820fe153ec04c6a111e444a68d6d5.tar.bz2 linux-stable-169310f71fc820fe153ec04c6a111e444a68d6d5.zip |
Merge branch 'linus' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/events/core.c')
-rw-r--r-- | kernel/events/core.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 4b838470fac4..709a55b9ad97 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -724,9 +724,15 @@ static inline void __update_cgrp_time(struct perf_cgroup *cgrp) static inline void update_cgrp_time_from_cpuctx(struct perf_cpu_context *cpuctx) { - struct perf_cgroup *cgrp_out = cpuctx->cgrp; - if (cgrp_out) - __update_cgrp_time(cgrp_out); + struct perf_cgroup *cgrp = cpuctx->cgrp; + struct cgroup_subsys_state *css; + + if (cgrp) { + for (css = &cgrp->css; css; css = css->parent) { + cgrp = container_of(css, struct perf_cgroup, css); + __update_cgrp_time(cgrp); + } + } } static inline void update_cgrp_time_from_event(struct perf_event *event) @@ -754,6 +760,7 @@ perf_cgroup_set_timestamp(struct task_struct *task, { struct perf_cgroup *cgrp; struct perf_cgroup_info *info; + struct cgroup_subsys_state *css; /* * ctx->lock held by caller @@ -764,8 +771,12 @@ perf_cgroup_set_timestamp(struct task_struct *task, return; cgrp = perf_cgroup_from_task(task, ctx); - info = this_cpu_ptr(cgrp->info); - info->timestamp = ctx->timestamp; + + for (css = &cgrp->css; css; css = css->parent) { + cgrp = container_of(css, struct perf_cgroup, css); + info = this_cpu_ptr(cgrp->info); + info->timestamp = ctx->timestamp; + } } static DEFINE_PER_CPU(struct list_head, cgrp_cpuctx_list); |