From: Nicholas Piggin <npiggin@gmail.com>
To: "alex@ghiti.fr" <alex@ghiti.fr>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Michael Ellerman <mpe@ellerman.id.au>,
Paul Mackerras <paulus@samba.org>
Cc: "akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v4 02/10] mm, hugetlbfs: Allow an arch to always use generic versions of get_unmapped_area functions
Date: Thu, 09 Dec 2021 19:40:20 +1000 [thread overview]
Message-ID: <1639042788.z08wljpdx8.astroid@bobo.none> (raw)
In-Reply-To: <52eb6d66c41f1165c88a0b0da08ae190c0b95a59.1638976229.git.christophe.leroy@csgroup.eu>
Excerpts from Christophe Leroy's message of December 9, 2021 3:18 am:
> Unlike most architectures, powerpc can only define at runtime
> if it is going to use the generic arch_get_unmapped_area() or not.
>
> Today, powerpc has a copy of the generic arch_get_unmapped_area()
> because when selection HAVE_ARCH_UNMAPPED_AREA the generic
> arch_get_unmapped_area() is not available.
>
> Rename it generic_get_unmapped_area() and make it independent of
> HAVE_ARCH_UNMAPPED_AREA.
>
> Do the same for arch_get_unmapped_area_topdown() versus
> HAVE_ARCH_UNMAPPED_AREA_TOPDOWN.
>
> Do the same for hugetlb_get_unmapped_area() versus
> HAVE_ARCH_HUGETLB_UNMAPPED_AREA.
>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
> ---
> fs/hugetlbfs/inode.c | 17 +++++++++++++----
> include/linux/hugetlb.h | 5 +++++
> include/linux/sched/mm.h | 9 +++++++++
> mm/mmap.c | 31 ++++++++++++++++++++++++-------
> 4 files changed, 51 insertions(+), 11 deletions(-)
>
prev parent reply other threads:[~2021-12-09 9:40 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-08 17:18 [PATCH v4 00/10] Convert powerpc to default topdown mmap layout Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 01/10] mm: Allow arch specific arch_randomize_brk() with CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 03/10] powerpc/mm: Move vma_mmu_pagesize() Christophe Leroy
2021-12-09 9:36 ` Nicholas Piggin
2021-12-08 17:18 ` [PATCH v4 04/10] powerpc/mm: Make slice specific to book3s/64 Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 05/10] powerpc/mm: Remove CONFIG_PPC_MM_SLICES Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 06/10] powerpc/mm: Use generic_get_unmapped_area() and call it from arch_get_unmapped_area() Christophe Leroy
2021-12-09 9:50 ` Nicholas Piggin
2021-12-10 17:47 ` Christophe Leroy
2021-12-16 14:25 ` Christophe Leroy
2021-12-13 13:02 ` Michael Ellerman
2021-12-08 17:18 ` [PATCH v4 07/10] powerpc/mm: Use generic_hugetlb_get_unmapped_area() Christophe Leroy
2021-12-09 10:02 ` Nicholas Piggin
2021-12-16 17:13 ` Christophe Leroy
2021-12-16 18:55 ` Catalin Marinas
2021-12-08 17:18 ` [PATCH v4 08/10] powerpc/mm: Move get_unmapped_area functions to slice.c Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 09/10] powerpc/mm: Convert to default topdown mmap layout Christophe Leroy
2021-12-09 10:15 ` Nicholas Piggin
2021-12-09 10:22 ` Christophe Leroy
2021-12-09 10:43 ` Nicholas Piggin
2021-12-09 11:22 ` Michael Ellerman
2021-12-09 11:32 ` Christophe Leroy
2021-12-09 23:56 ` Michael Ellerman
2021-12-16 14:27 ` Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 10/10] powerpc/mm: Properly randomise mmap with slices Christophe Leroy
[not found] ` <52eb6d66c41f1165c88a0b0da08ae190c0b95a59.1638976229.git.christophe.leroy@csgroup.eu>
2021-12-09 9:40 ` Nicholas Piggin [this message]
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