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Message-ID: <CALCETrWQ-u82-CvECyiX0U1oNhb3Cnp2rq7z3HLbpQ434FQeSA@mail.gmail.com> Date: Tue, 12 Dec 2017 09:57:52 -0800 From: Andy Lutomirski <luto@...nel.org> To: Thomas Gleixner <tglx@...utronix.de> Cc: LKML <linux-kernel@...r.kernel.org>, X86 ML <x86@...nel.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Andy Lutomirsky <luto@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Dave Hansen <dave.hansen@...el.com>, Borislav Petkov <bpetkov@...e.de>, Greg KH <gregkh@...uxfoundation.org>, Kees Cook <keescook@...gle.com>, Hugh Dickins <hughd@...gle.com>, Brian Gerst <brgerst@...il.com>, Josh Poimboeuf <jpoimboe@...hat.com>, Denys Vlasenko <dvlasenk@...hat.com>, Boris Ostrovsky <boris.ostrovsky@...cle.com>, Juergen Gross <jgross@...e.com>, David Laight <David.Laight@...lab.com>, Eduardo Valentin <eduval@...zon.com>, aliguori@...zon.com, Will Deacon <will.deacon@....com>, "linux-mm@...ck.org" <linux-mm@...ck.org> Subject: Re: [patch 10/16] x86/ldt: Do not install LDT for kernel threads On Tue, Dec 12, 2017 at 9:32 AM, Thomas Gleixner <tglx@...utronix.de> wrote: > From: Thomas Gleixner <tglx@...utronix.de> > > Kernel threads can use the mm of a user process temporarily via use_mm(), > but there is no point in installing the LDT which is associated to that mm > for the kernel thread. > I like this one.
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