From: Mark Rutland <mark.rutland@arm.com>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-arch@vger.kernel.org, Nick Hu <nickhu@andestech.com>,
linux-kernel@vger.kernel.org, Palmer Dabbelt <palmer@dabbelt.com>,
Greentime Hu <green.hu@gmail.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Andrew Morton <akpm@linux-foundation.org>,
Vincent Chen <deanbo422@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH 5/6] uaccess: add force_uaccess_{begin,end} helpers
Date: Mon, 13 Jul 2020 13:26:37 +0100 [thread overview]
Message-ID: <20200713122636.GB51007@lakrids.cambridge.arm.com> (raw)
In-Reply-To: <20200710135706.537715-6-hch@lst.de>
On Fri, Jul 10, 2020 at 03:57:05PM +0200, Christoph Hellwig wrote:
> Add helpers to wraper the get_fs/set_fs magic for undoing any damange
> done by set_fs(KERNEL_DS). There is no real functional benefit, but this
> documents the intent of these calls better, and will allow stubbing the
> functions out easily for kernels builds that do not allow address space
> overrides in the future.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> arch/arm64/kernel/sdei.c | 2 +-
> arch/m68k/include/asm/tlbflush.h | 12 ++++++------
> arch/mips/kernel/unaligned.c | 27 +++++++++++++--------------
> arch/nds32/mm/alignment.c | 7 +++----
> arch/sh/kernel/traps_32.c | 18 ++++++++----------
> drivers/firmware/arm_sdei.c | 5 ++---
> include/linux/uaccess.h | 18 ++++++++++++++++++
> kernel/events/callchain.c | 5 ++---
> kernel/events/core.c | 5 ++---
> kernel/kthread.c | 5 ++---
> kernel/stacktrace.c | 5 ++---
> mm/maccess.c | 22 ++++++++++------------
> 12 files changed, 69 insertions(+), 62 deletions(-)
The perf core and arm64/sdei bits look sound. FWIW:
Acked-by: Mark Rutland <mark.rutland@arm.com>
Mark.
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next prev parent reply other threads:[~2020-07-13 12:26 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-10 13:57 clean up address limit helpers Christoph Hellwig
2020-07-10 13:57 ` [PATCH 1/6] syscalls: use uaccess_kernel in addr_limit_user_check Christoph Hellwig
2020-07-10 13:57 ` [PATCH 2/6] nds32: use uaccess_kernel in show_regs Christoph Hellwig
2020-07-13 10:02 ` Greentime Hu
2020-07-10 13:57 ` [PATCH 3/6] riscv: include <asm/pgtable.h> in <asm/uaccess.h> Christoph Hellwig
2020-07-21 23:02 ` Palmer Dabbelt
2020-07-10 13:57 ` [PATCH 4/6] uaccess: remove segment_eq Christoph Hellwig
2020-07-13 9:16 ` Geert Uytterhoeven
2020-07-13 10:05 ` Greentime Hu
2020-07-10 13:57 ` [PATCH 5/6] uaccess: add force_uaccess_{begin,end} helpers Christoph Hellwig
2020-07-13 9:12 ` Geert Uytterhoeven
2020-07-13 10:06 ` Greentime Hu
2020-07-13 12:21 ` Mark Rutland
2020-07-13 13:19 ` Geert Uytterhoeven
2020-07-14 7:12 ` Christoph Hellwig
2020-07-13 12:26 ` Mark Rutland [this message]
2020-07-10 13:57 ` [PATCH 6/6] exec: use force_uaccess_begin during exec and exit Christoph Hellwig
2020-07-10 15:25 ` clean up address limit helpers Linus Torvalds
2020-07-14 7:09 ` Christoph Hellwig
2020-07-14 15:33 ` Linus Torvalds
2020-07-14 10:54 clean up address limit helpers v2 Christoph Hellwig
2020-07-14 10:55 ` [PATCH 5/6] uaccess: add force_uaccess_{begin,end} helpers Christoph Hellwig
2020-07-14 15:29 ` Linus Torvalds
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