Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats

Andrew wrote:

Nah.  Stick it in the same cacheline as tasklist_lock (I'm amazed that
we've continued to get away with a global lock for that).

Yes - a bit amazing.  But no sense compounding the problem now.

We shouldn't be adding global locks/modifiable data in the
fork/exit code path if we can help it, without at least
providing some simple way to ameliorate the problem when
folks do start hitting it.

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