[RFC PATCH v6 0/5] Thread-local ABI system call (CPU number cache) · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-04
[RFC PATCH v6 3/5] Thread-local ABI: wire up ARM system call · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-04
[RFC PATCH v6 5/5] Thread-local ABI: wire up x86 32/64 system call · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-04
[RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-04
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · "H. Peter Anvin" <hpa@zytor.com> · 2016-04-04
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-04
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-04
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Florian Weimer <hidden> · 2016-04-05
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Peter Zijlstra <peterz@infradead.org> · 2016-04-05
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Florian Weimer <hidden> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Peter Zijlstra <peterz@infradead.org> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Florian Weimer <hidden> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Peter Zijlstra <peterz@infradead.org> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Florian Weimer <hidden> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Peter Zijlstra <peterz@infradead.org> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Florian Weimer <hidden> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Linus Torvalds <torvalds@linux-foundation.org> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Andy Lutomirski <luto@amacapital.net> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Florian Weimer <hidden> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Linus Torvalds <torvalds@linux-foundation.org> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Linus Torvalds <torvalds@linux-foundation.org> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Andi Kleen <hidden> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-07
Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread · Florian Weimer <hidden> · 2016-04-07
[RFC PATCH v6 4/5] Thread-local ABI cpu_id: x86 32/64 resume notifier · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-04
[RFC PATCH v6 2/5] Thread-local ABI cpu_id: ARM resume notifier · Mathieu Desnoyers <mathieu.desnoyers@efficios.com> · 2016-04-04

Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread

From: Florian Weimer <hidden>
Date: 2016-04-07 16:50:31
Also in: lkml

On 04/07/2016 06:39 PM, Linus Torvalds wrote:

Can anybody give a *coherent* and actual *real* reason why the kernel
would ever care about anything else?

We already have a similar per-thread data structure, the robust mutex
list.  The CPU ID is another one.  So it's conceivable we might get
further such fields in the future.

(AFAICS set_robust_list was designed with such extensions in mind.)

Florian

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