linux-kernel - [PATCH 0/2] Allow nesting of lazy MMU mode

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Message-Id: <20231012195415.282357-1-willy@infradead.org>
Date:   Thu, 12 Oct 2023 20:54:13 +0100
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-sparc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        Michael Ellerman <mpe@...erman.id.au>,
        Erhard Furtner <erhard_f@...lbox.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Juergen Gross <jgross@...e.com>
Subject: [PATCH 0/2] Allow nesting of lazy MMU mode

Dave Woodhouse reported that we now nest calls to
arch_enter_lazy_mmu_mode().  That was inadvertent, but in principle we
should allow it.  On further investigation, Juergen already fixed it
for Xen, but didn't tell anyone.  Fix it for Sparc & PowerPC too.
This may or may not help fix the problem that Erhard reported.

Matthew Wilcox (Oracle) (2):
  powerpc: Allow nesting of lazy MMU mode
  sparc: Allow nesting of lazy MMU mode

 arch/powerpc/include/asm/book3s/64/tlbflush-hash.h | 5 ++---
 arch/sparc/mm/tlb.c                                | 5 ++---
 2 files changed, 4 insertions(+), 6 deletions(-)

-- 
2.40.1