From: Will Deacon <will@kernel.org> To: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>, Andrew Morton <akpm@linux-foundation.org>, "Peter Zijlstra (Intel)" <peterz@infradead.org>, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, arnd@arndb.de Subject: Re: [PATCH 0/3] Fix build failure with v5.8-rc1 Date: Wed, 17 Jun 2020 11:57:08 +0100 [thread overview] Message-ID: <20200617105708.GA3503@willie-the-truck> (raw) In-Reply-To: <cover.1592225557.git.christophe.leroy@csgroup.eu> [+Arnd in case he's interested in this series] On Mon, Jun 15, 2020 at 12:57:55PM +0000, Christophe Leroy wrote: > Commit 2ab3a0a02905 ("READ_ONCE: Enforce atomicity for > {READ,WRITE}_ONCE() memory accesses") leads to following build > failure on powerpc 8xx. > > To fix it, this small series introduces a new helper named ptep_get() > to replace the direct access with READ_ONCE(). This new helper > can be overriden by architectures. Thanks for doing this, and sorry for the breakage. For the series: Acked-by: Will Deacon <will@kernel.org> Hopefully we can introduce accessors for the other page-table levels too, but that can obviously happen incrementally. Will > Christophe Leroy (3): > mm/gup: Use huge_ptep_get() in gup_hugepte() > mm: Allow arches to provide ptep_get() > powerpc/8xx: Provide ptep_get() with 16k pages > > arch/powerpc/include/asm/nohash/32/pgtable.h | 10 ++++++++++ > include/asm-generic/hugetlb.h | 2 +- > include/linux/pgtable.h | 7 +++++++ > mm/gup.c | 4 ++-- > 4 files changed, 20 insertions(+), 3 deletions(-) > > -- > 2.25.0 >
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org> To: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: arnd@arndb.de, "Peter Zijlstra \(Intel\)" <peterz@infradead.org>, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Paul Mackerras <paulus@samba.org>, Andrew Morton <akpm@linux-foundation.org>, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH 0/3] Fix build failure with v5.8-rc1 Date: Wed, 17 Jun 2020 11:57:08 +0100 [thread overview] Message-ID: <20200617105708.GA3503@willie-the-truck> (raw) In-Reply-To: <cover.1592225557.git.christophe.leroy@csgroup.eu> [+Arnd in case he's interested in this series] On Mon, Jun 15, 2020 at 12:57:55PM +0000, Christophe Leroy wrote: > Commit 2ab3a0a02905 ("READ_ONCE: Enforce atomicity for > {READ,WRITE}_ONCE() memory accesses") leads to following build > failure on powerpc 8xx. > > To fix it, this small series introduces a new helper named ptep_get() > to replace the direct access with READ_ONCE(). This new helper > can be overriden by architectures. Thanks for doing this, and sorry for the breakage. For the series: Acked-by: Will Deacon <will@kernel.org> Hopefully we can introduce accessors for the other page-table levels too, but that can obviously happen incrementally. Will > Christophe Leroy (3): > mm/gup: Use huge_ptep_get() in gup_hugepte() > mm: Allow arches to provide ptep_get() > powerpc/8xx: Provide ptep_get() with 16k pages > > arch/powerpc/include/asm/nohash/32/pgtable.h | 10 ++++++++++ > include/asm-generic/hugetlb.h | 2 +- > include/linux/pgtable.h | 7 +++++++ > mm/gup.c | 4 ++-- > 4 files changed, 20 insertions(+), 3 deletions(-) > > -- > 2.25.0 >
next prev parent reply other threads:[~2020-06-17 10:57 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-06-15 12:57 [PATCH 0/3] Fix build failure with v5.8-rc1 Christophe Leroy 2020-06-15 12:57 ` Christophe Leroy 2020-06-15 12:57 ` [PATCH 1/3] mm/gup: Use huge_ptep_get() in gup_hugepte() Christophe Leroy 2020-06-15 12:57 ` Christophe Leroy 2020-06-17 14:14 ` Michael Ellerman 2020-06-17 14:14 ` Michael Ellerman 2020-06-15 12:57 ` [PATCH 2/3] mm: Allow arches to provide ptep_get() Christophe Leroy 2020-06-15 12:57 ` Christophe Leroy 2020-06-15 12:57 ` [PATCH 3/3] powerpc/8xx: Provide ptep_get() with 16k pages Christophe Leroy 2020-06-15 12:57 ` Christophe Leroy 2020-06-15 13:22 ` Peter Zijlstra 2020-06-15 13:22 ` Peter Zijlstra 2020-06-17 14:21 ` Michael Ellerman 2020-06-17 14:21 ` Michael Ellerman 2020-06-17 14:38 ` Peter Zijlstra 2020-06-17 14:38 ` Peter Zijlstra 2020-06-17 14:45 ` Christophe Leroy 2020-06-17 14:45 ` Christophe Leroy 2020-06-18 1:00 ` Michael Ellerman 2020-06-18 1:00 ` Michael Ellerman 2020-06-18 14:19 ` Christophe Leroy 2020-06-18 14:19 ` Christophe Leroy 2020-06-18 0:58 ` Michael Ellerman 2020-06-18 0:58 ` Michael Ellerman 2020-06-18 14:21 ` Christophe Leroy 2020-06-18 14:21 ` Christophe Leroy 2020-06-17 10:57 ` Will Deacon [this message] 2020-06-17 10:57 ` [PATCH 0/3] Fix build failure with v5.8-rc1 Will Deacon 2020-06-17 14:13 ` Michael Ellerman 2020-06-17 14:13 ` Michael Ellerman 2020-06-18 12:37 ` Michael Ellerman 2020-06-18 12:37 ` Michael Ellerman
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