Messages in this thread | | | Date | Thu, 5 Sep 2019 09:56:55 -0700 | From | Tejun Heo <> | Subject | Re: [PATCH 2/9] perf/core: Add PERF_SAMPLE_CGROUP feature |
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Hello, Namhyung.
On Tue, Sep 03, 2019 at 10:13:08AM +0800, Namhyung Kim wrote: > So is my understanding below correct? > > * currently kernfs ino+gen is different than inode's ino+gen
They're the same. It's just that cgroup has other less useful IDs too.
> * but it'd be better to make them same > * so move (generic?) inode's ino+gen logic to cgroup > * and kernfs node use the same logic (and number) > * so perf sampling code (NMI) just access kernfs node > * and userspace can use file handle for comparison
The rest, yes, pretty much.
Thanks.
-- tejun
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