linux-kernel - Re: [PATCH v2] x86/paravirt: merge activate_mm and dup

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Message-ID: <20230306084117.GAZAWnLeGI09VLsXkC@fat_crate.local>
Date:   Mon, 6 Mar 2023 09:41:17 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Juergen Gross <jgross@...e.com>
Cc:     "Srivatsa S. Bhat" <srivatsa@...il.mit.edu>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        virtualization@...ts.linux-foundation.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Alexey Makhalov <amakhalov@...are.com>,
        VMware PV-Drivers Reviewers <pv-drivers@...are.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        xen-devel@...ts.xenproject.org
Subject: Re: [PATCH v2] x86/paravirt: merge activate_mm and dup_mmap callbacks

On Thu, Feb 23, 2023 at 04:05:51PM +0100, Juergen Gross wrote:
> x86 maintainers, I think this patch should be carried via the tip tree.

You missed a spot. I'll whack it.

diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index a8b323266179..c3ad8a526378 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -16,13 +16,6 @@
 
 extern atomic64_t last_mm_ctx_id;
 
-#ifndef CONFIG_PARAVIRT_XXL
-static inline void paravirt_activate_mm(struct mm_struct *prev,
-					struct mm_struct *next)
-{
-}
-#endif	/* !CONFIG_PARAVIRT_XXL */
-
 #ifdef CONFIG_PERF_EVENTS
 DECLARE_STATIC_KEY_FALSE(rdpmc_never_available_key);
 DECLARE_STATIC_KEY_FALSE(rdpmc_always_available_key);

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette