Messages in this thread |  | | Date | Thu, 2 Jan 2020 19:09:02 +0100 | From | Christian Brauner <> | Subject | Re: [PATCH 7/7] clone3: ensure copy_thread_tls is implemented |
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On Thu, Jan 02, 2020 at 06:24:13PM +0100, Amanieu d'Antras wrote: > copy_thread implementations handle CLONE_SETTLS by reading the TLS > value from the registers containing the syscall arguments for > clone. This doesn't work with clone3 since the TLS value is passed > in clone_args instead. > > Signed-off-by: Amanieu d'Antras <amanieu@gmail.com> > Cc: <stable@vger.kernel.org> # 5.3.x
I'm in favor of this change. But we need to make sure that any arch which now has ARCH_WANTS_SYS_CLONE3 set but doesn't implement copy_thread_tls() is fixed.
Once all architectures have clone3() support - and there are just a few by now (IA64 comes to mind) this means we should also be able to get rid of of copy_thread() completely. That seems desirable to me as it makes the codepaths easier to follow.
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
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